CotEditor Changelog

What's new in CotEditor 4.8.2

Apr 29, 2024

Improvements:
Disable smart dash for the General mode by default.
Update the JavaScript, Swift, and TOML syntaxes.
Fixes:
Fix an issue on CotEditor 4.8.1 that opening some kinds of documents took a long time.
Fix an issue on CotEditor 4.8.0 that the editor displayed nothing when the mode setting is empty.
Fix an issue on CotEditor 4.8.0 that custom syntaxes could be ignored when it contains ill-formed file mapping definitions.
Fix syntax highlighting for simple words.

New in CotEditor 4.8.1 (Apr 22, 2024)

New in CotEditor 4.8.0 RC (Apr 15, 2024)

New in CotEditor 4.8.0 Beta 3 (Apr 1, 2024)

New in CotEditor 4.8.0 Beta 2 (Mar 10, 2024)

New in CotEditor 4.8.0 Beta (Mar 10, 2024)

New in CotEditor 4.7.4 (Feb 12, 2024)

New in CotEditor 4.7.3 (Jan 21, 2024)

New in CotEditor 4.7.2 (Jan 4, 2024)

New in CotEditor 4.7.1 (Dec 12, 2023)

New in CotEditor 4.7.0 RC 2 (Dec 6, 2023)

New in CotEditor 4.7.0 RC (Dec 4, 2023)

New in CotEditor 4.7.0 Beta 2 (Nov 27, 2023)

New in CotEditor 4.7.0 Beta 1 (Nov 27, 2023)

New in CotEditor 4.6.5 (Nov 10, 2023)

New in CotEditor 4.6.4 (Nov 2, 2023)

New in CotEditor 4.6.3 (Oct 18, 2023)

New in CotEditor 4.6.2 (Oct 6, 2023)

New in CotEditor 4.6.1 (Sep 29, 2023)

New in CotEditor 4.6.0 RC (Sep 23, 2023)

New in CotEditor 4.6.0 Beta 3 (Sep 12, 2023)

New in CotEditor 4.5.9 (Sep 11, 2023)

New in CotEditor 4.6.0 Beta 2 (Aug 31, 2023)

New in CotEditor 4.6.0 Beta (Aug 31, 2023)

New Features:
Support macOS 14 Sonoma.
Add the “Kind” option to syntax definitions to set the syntax is for “general” or “code”.
Add feature to set the editor font depending of the syntax kind.
Add the monospaced font setting to the Appearance settings pane.
Add ability to switch the monospaced/proportional font to the Fonts toolbar item.
Add option to disable the inconsistent line endings dialog entirely (not recommended).
Add Spanish localization (thanks to Agustin Borrego!).
Improvements:
Change the system requirement to macOS 13 Ventura and later.
Update the behavior and look of the inspector pane.
Add “Use system color” option to the cursor color in the theme setting view.
Update the character inspector to add labels for each item and display the Unicode version.
Make sure to perform the automatic whitespace trimming every time before explicit saving by the user.
Migrate the sharing interface to the modern version.
Reorganize the Settings window.
Add a font size field to the print dialog.
Deprecate the print font option in the Print settings.
Deprecate the cursor type option.
Deprecate the Color Code toolbar button.
[trivial] Migrate the Opacity toolbar item to popover in macOS 14.
[trivial] Disable the zoom button in the find & replace windows.
[trivial] Disable the contextual menu for shortcut fields.
[trivial] Reduce the maximum number of editors to split into.
[trivial] Change the behavior of the duplication command for syntax definitions to just create a duplicated syntax instead of opening the syntax editor dialog.
[trivial] Improve the behavior when selecting a row in the find result table in the Find window.
[trivial] Rename “syntax style” with just “syntax.”
[dev] Update the build environment to Xcode 15 Beta 8 (Swift 5.9).
Fixes:
Fix an issue that the Share button in the Touch Bar did not work when the document was replaced with the initial empty document.
Others:
The toolbar customization will be reset at the first launch of CotEditor 4.6.0.
Known Issues:
User interface is not localized yet.

New in CotEditor 4.5.8 (Aug 16, 2023)

New in CotEditor 4.5.7 (Jul 25, 2023)

New in CotEditor 4.5.6 (Jul 25, 2023)

New in CotEditor 4.5.5 (May 5, 2023)

New in CotEditor 4.5.4 (Apr 19, 2023)

New in CotEditor 4.5.3 (Apr 19, 2023)

New in CotEditor 4.5.2 (Apr 6, 2023)

New in CotEditor 4.5.1 (Mar 19, 2023)

New in CotEditor 4.5.0 RC (Mar 16, 2023)

New in CotEditor 4.5.0 Beta 2 (Mar 12, 2023)

New in CotEditor 4.5.0 Beta (Mar 3, 2023)

New in CotEditor 4.4.5 (Feb 7, 2023)

New in CotEditor 4.4.4 (Jan 13, 2023)

New in CotEditor 4.4.3 (Dec 23, 2022)

New in CotEditor 4.4.2 (Dec 4, 2022)

New in CotEditor 4.4.1 (Nov 7, 2022)

New in CotEditor 4.4.0 (Oct 28, 2022)

New Features:
Add Advanced Character Count feature to the Text menu.
Dynamically prioritize the scripts in the subfolder whose name is the same as the frontmost document's syntax style when the same keyboard shortcut is determined in multiple CotEditor scripts.
Add URL Encode/Decode commands to the Text > Transformations submenu.
Display a dot in the window tab if the document has unsaved changes.
Add the option to draw the separator line between the line number view and the editor.
Add syntax styles for DOT (Thanks to usr-sse2!) and TypeScript.
Improvements:
Support macOS 13 Ventura.
Change the system requirement to macOS 12 Monterey and later.
Improve the Find All button only on macOS 13 Ventura (and later) to enable performing additional commands.
Store the state of the “Don’t ask again for this document” option for the inconsistent line endings alert and respect it for future open.
[for advanced users] Now you can also disable the feature entirely within the application by running the following command in Terminal: defaults write com.coteditor.CotEditor suppressesInconsistentLineEndingAlert -bool YES, though it is not recommended.
Deprecate the length property in AppleScript (Use number of characters of contents instead).
Support the split cursor for bidirectional languages in multi-cursor editing.
Update the CotEditor's setting view in the print panel.
Change the location and column count to start with zero.
Add the history menu to the regular expression patterns in the pattern sort dialog.
Display the error message in the pattern sort dialog if the regular expression pattern is invalid.
Improve the algorithm to parse numbers in the Sort by Pattern command.
Improve the algorithm of uncommenting.
Improve the algorithm of encoding detection.
Improve VoiceOver support.
Deprecate the “Ignore line endings when counting characters” option.
Deprecate the option to hide file size in the status bar.
Remove the text length display in the document inspector.
Improve stability.
[trivial] Adjust ticks in the line number view for vertical orientation.
[trivial] Save documents asynchronously.
[trivial] Visually adjust the filter field in the outline inspector.
[trivial] Organize the editor's contextual menu.
[trivial] Improve the basic regular expression syntax reference.
[trivial] Improve the status bar display.
[trivial] Optimize the script menu update.
[dev] Update the build environment to Xcode 14.1 (macOS 13 SDK).
[dev] Migrate helpindex to cshelpindex.
[non-AppStore ver.] Optimize the script menu update.
Fixes:
Fix an issue that the empty draft documents silently discarded remained in the Open Recents menu.

New in CotEditor 4.4.0 RC (Oct 20, 2022)

New in CotEditor 4.4.0 Beta 4 (Oct 2, 2022)

New in CotEditor 4.3.6 (Oct 2, 2022)

New in CotEditor 4.4.0 Beta 3 (Sep 23, 2022)

New in CotEditor 4.4.0 Beta 2 (Sep 18, 2022)

New in CotEditor 4.3.5 (Sep 18, 2022)

New in CotEditor 4.4.0 Beta (Sep 9, 2022)

New Features:
Add Advanced Character Count to the Text menu.
Dynamically prioritize the scripts in the subfolder whose name is the same as the frontmost document's syntax style when the same keyboard shortcut is determined in multiple CotEditor scripts.
Add URL Encode/Decode commands to the Text > Transformations submenu.
Display a dot in the window tab if the document has unsaved changes.
Add the option to draw the separator line between the line number view and the editor.
Add syntax style for TypeScript.
Improvements:
Support macOS 13 Ventura.
Change the system requirement to macOS 12 Monterey and later.
Store the state of the “Don’t ask again for this document” option for the inconsistent line endings alert and respect it for future open.
[for advanced users] Now you can also disable the feature entirely within the application by running the following command in Terminal: defaults write com.coteditor.CotEditor suppressesInconsistentLineEndingAlert -bool YES, though it is not recommended.
Deprecate the length property in AppleScript (Use number of characters of contents instead).
Support the split cursor for bidirectional languages in multi-cursor editing.
Update the CotEditor's setting view in the print panel.
Change the location and column count to start with zero.
Display the error message in the pattern sort dialog if the regular expression pattern is invalid.
Improve the algorithm to parse numbers in the Sort by Pattern command.
Improve the algorithm of uncommenting.
Improve the algorithm of encoding detection.
Improve VoiceOver support.
Deprecate the “Ignore line endings when counting characters” option.
Deprecate the option to hide file size in the status bar.
Remove the text length display in the document inspector.
[trivial] Adjust ticks in the line number view for vertical orientation.
[trivial] Save documents asynchronously.
[trivial] Organize the editor's contextual menu.
[trivial] Improve the basic regular expression syntax reference.
[trivial] Improve the status bar display.
[dev] Update the build environment to Xcode 14.0 beta 6.
[non-AppStore ver.] Update Sparkle to 2.2.2.
Fixes:
Fix an issue that memory could leak when the opacity toolbar item is used.

New in CotEditor 4.3.4 (Sep 9, 2022)

New in CotEditor 4.3.3 (Aug 14, 2022)

New in CotEditor 4.3.2 (Jul 31, 2022)

New in CotEditor 4.3.1 (Jul 3, 2022)

New in CotEditor 4.3.0 RC (Jun 16, 2022)

New in CotEditor 4.3.0 Beta (Jun 14, 2022)

New in CotEditor 4.2.3 (Jun 8, 2022)

New in CotEditor 4.2.2 (May 26, 2022)

New in CotEditor 4.2.1 (May 11, 2022)

New in CotEditor 4.2.0 Beta (Apr 28, 2022)

New Features:
Ability to handle documents holding multiple types of line endings.
Alert inconsistent line endings in the document when opening or reloading.
List up the inconsistent line endings in the Warnings pane in the inspector.
Minor line endings, namely NEL (New Line), LS (Line Separator), and PS (Paragraph Separator), are added to the line endings options (These items are visible only either when pressing the Option key or when the document's line ending is one of these).
Add the hidden Paste Exactly command (Command-Option-V) that pastes text in the clipboard without any modification, such as adjusting line endings to the document setting.
Add an option Selection to the Pages section in the Print dialog to print only the selected text in the document.
Add history to the Unicode code point input.
Export setting files, such as themes or multiple replacements, to the Finder just by dropping the setting name from the Preferences.
Transfer settings among CotEditors in different machines via Universal Control by dragging the setting name and dropping it to the setting list area in another CotEditor.
Improvements:
Update document icons.
Detect the line ending in documents more intelligently.
Display code points instead of being left blank in the incompatible character list for whitespaces.
Improve the scrolling behavior by normal size documents by enabling the non-contiguous text layout mode only with large documents.
Optimize syntax parsing.
Rename the Incompatible Characters pane to the Warnings pane to share the pane with the inconsistent line ending list.
Locate the vertical scroller for the editor on the left side when the writing direction is right-to-left.
Print the line numbers on the right side on printing if the writing direction is right-to-left.
Adjust the vertical position of line numbers on printing.
Indent snippet text with multiple lines to the indention level where will be inserted.
Restore the characters even incompatible with the document encoding when restoring documents from the last session.
Add steppers to the font setting controls.
Prefer using .yml for syntax definition files over .yaml.
Deprecate the feature to replace $LN in the outline menu template with the line number of the occurrence.
Remove original document icons for CoffeeScript and Tcl.
Revise text for more Mac-like expression.
Update the help contents.
[trivial] Accept script files for the Script menu with an uppercased file extension.
[trivial] Replace n with R for the newline metacharacter in the Basic Regular Expression Syntax reference.
[trivial] Tweak Anura theme.

New in CotEditor 4.1.5 (Apr 10, 2022)

New in CotEditor 4.1.4 (Mar 27, 2022)

New in CotEditor 4.1.3 (Mar 14, 2022)

New in CotEditor 4.1.2 (Feb 20, 2022)

New in CotEditor 4.1.1 (Feb 16, 2022)

New in CotEditor 4.1.0 (Feb 16, 2022)

New Features:
Add a feature to filter outline items in the outline pane.
Add an option not to draw the background color on printing.
Add “Open Outline Menu” command to the Find menu.
Add Turkish (thanks to Emir SARI!) and British English (thanks to Alex Newson!) localizations.
Introduce a new AppleScript command jump to document objects.
Introduce a new read-only AppleScript parameter has BOM to document objects and a new option BOM to the convert command.
Place line number views on the right side in the editor if the writing direction is right-to-left.
Add syntax style for Protocol Buffer.
Improvements:
Change the system requirement to macOS 11 Big Sur and later.
Update the window size setting to use the document last window size if the width/height setting in the preferences > Window is left blank (= auto).
Allow the menu key bindings to assign a shortcut without the Command key.
Display code points instead of left blank in the incompatible character table for control characters.
Update Swift syntax style to add keywords added in Swift 5.5.
Update C++ syntax style to add more file extensions.
Update Markdown syntax style for faster syntax parsing.
Change the behavior to include the last empty line in the calculation when specifying lines with a negative value in the Go to Line command or via AppleScript.
Improve the character info section in the document inspector to display the list of code points for the selected character instead of displaying only when a single Unicode character is selected.
Update the Unicode block name list for the character inspector from Unicode 13.0.0 to Unicode 14.0.0.
Make sure the application relaunches even other tasks interrupt before termination.
Improve some toolbar items to make their state distinguish even collapsed.
Display the command name in the error message when the input shortcut for key bindings is already taken by another command.
Improve VoiceOver accessibility.
Update the AppleScript guide in the help.
Improve the animation by drag & drop in tables.
Optimize several document parse.
[trivial] Adjust the margin of the editor area.
[trivial] Hide the file extension of setting files by export by default.
[trivial] Finish key binding input in Key Bindings pane when another window becomes frontmost.
[trivial] Update some symbols for shortcut keys in the key binding settings.
[dev] Update the build environment to Xcode 13.2 (Swift 5.5).
[dev] Remove xcworkspace.
[non-AppStore ver.] Update Sparkle to 2.0.0.
Fixes:
Fix an issue that the current line number becomes 0 when the cursor is placed at the beginning of the document (thanks to Alex Newson!).
Fix an issue on macOS 12 Monterey that the user custom color did not apply to the i-beam cursor for the vertical layout.
Fix an issue in the document inspector that the character info section wrongly indicated the code point as U+000A for any kind of line endings, even for CR (U+000D) and CRLF.
Fix an issue that the dialog urging duplication to edit locked files displayed repeatedly under specific conditions.
Fix an issue that the slider in the editor opacity toolbar item did not work when collapsed.
Fix an issue that the editor's opacity change did not apply immediately.
Fix an issue that some uncustomizable menu commands were provided in the Key Bindings preference pane.
Fix an issue in the snippet key bindings that shortcuts with only Shift key for modifier keys were accepted though does not work correctly.
Fix an issue that the initial position of the side pane was occasionally stacked under the window toolbar.
Fix an issue that some help buttons did not work (thanks to Alex Newson!).
Fix and minor update on localized strings.
Fix cot command to work also with Python 3.
Address an issue that the syntax highlight could flash while typing.

New in CotEditor 4.0.9 (Nov 29, 2021)

New in CotEditor 4.0.8 (Sep 19, 2021)

New in CotEditor 4.0.7 (Sep 9, 2021)

New in CotEditor 4.0.6 (Aug 29, 2021)

New in CotEditor 4.0.5 (Jun 7, 2021)

New in CotEditor 4.0.4 (Jun 2, 2021)

New in CotEditor 4.0.3 (May 9, 2021)

New in CotEditor 4.0.2 (Mar 17, 2021)

New in CotEditor 4.0.1 (Nov 18, 2020)

New in CotEditor 4.0.0 (Nov 18, 2020)

New Features:
Brand-new user interface designed to fit macOS 11 Big Sur.
Update the application icon.
Redesign the document window.
Support Apple Silicon.
Add syntax styles for Pascal (Thanks to cbnbg!), Dockerfile, and VHDL.
Improvements:
Change the system requirement to macOS 10.15 Catalina and later.
Move line endings/file encoding menus from the toolbar to the status bar.
Change default settings of items to display in the toolbar/status bar.
Change the default theme from Dendrobates to Anura.
Change the UI of the Unicode code point input to display the input field just above the insertion point.
Change the “trim trailing whitespace on save” option in the General pane to perform the trimming not on save but while typing with delay, and move the option to the Edit pane.
On sorting lines by pattern, evaluate numbers more intelligently when the “treat numbers as numeric value” option is enabled.
Enable toggling the editor split orientation by right-clicking the editor split button in the navigation bar.
Enable action to toggle editor split orientation even when no split editor is opened.
Remove the Integration preferences pane and move its contents to the General pane.
Enable “select previous/next outline item” commands even when the navigation bar is hidden.
Live update selection counts while moving the selection.
Scroll editor by swiping the line number area.
Reduce the priority that CotEditor implicitly becomes the default application for specific file types.
Previously, CotEditor scripts written in Unix scripts, such as Ruby or Python, were decoded using the user-preferred file-encoding set in the Format preferences pane for normal documents, now they are always interpreted as UTF-8.
Avoid showing the “edited” indicator in the close button of document windows when the document content is empty and therefore can close the window without the confirmation dialog.
Avoid discarding the current input when a new item is added while another item is in editing in the syntax style editor.
Round the corners of current line highlight.
Put only the filename rather than the absolute path for the relative path insertion () when the document file itself is dropped into the editor.
Remove the toolbar button to toggle page guide visibility.
Remove feature to import legacy syntax style definition files of which format was used in CotEditor 1.x.
[trivial] Update the preferences window layout.
[trivial] Improve tooltips of toolbar icons to reflect the current document state.
[trivial] Optimize the line number calculation in vertical text orientation.
[trivial] Always enable non-contiguous layout by the normal horizontal text orientation.
[dev] Update the build environment to Xcode 12.2 (Swift 5.3, macOS 11 SDK).
[dev] Replace DifferenceKit package with native CollectionDifference.
[dev] Update Yams from 3.0.1 to 4.0.0.
Fixes:
Fix an issue that the hanging indent can be wrongly calculated when typing a word that requires user selection, such as Japanese.
[trivial] Fix an issue in the syntax style toolbar item that the menu selected blank if the current style was deleted.
[trivial] Fix an issue that the i-beam for the combination of the vertical text orientation and a light theme cropped (FB8445000).
Assets 3

New in CotEditor 3.9.7 (Oct 19, 2020)

New in CotEditor 3.9.6 (Sep 14, 2020)

New in CotEditor 3.9.5 (Aug 16, 2020)

New in CotEditor 3.9.4 (Aug 13, 2020)

New in CotEditor 3.9.3 (Jul 19, 2020)

New in CotEditor 3.9.2 (Jun 28, 2020)

New in CotEditor 3.9.1 (Jun 15, 2020)

New in CotEditor 3.9.0 (May 29, 2020)

New Features:
Rewrite the invisible character drawing feature to draw alternative symbols more properly under various environments.
Add an option to draw indent guides.
Display Unicode's general category in the character inspector.
Improvements:
Adjust the text baseline to draw characters vertically center in lines.
Optimize the performance of “Replace All” with a large number of matches.
Improve the performance when pasting a huge text.
Remove the text encoding option for opened documents; instead, the encoding is always detected automatically when opening an existing file.
Update the Unicode block table to the latest Unicode 13.0.0.
Duplicate lines more intelligently.
Improve the encodings list edit view.
Adjust the width of toolbar items.
Remove “vertical orientation” from the selections of the Writing Direction toolbar button.
Make borders of line number views and opacity sample tips more distinct in the high-contrast mode.
Adjust the visible area after unwrapping lines in RTL text mode.
Remove the default value of the snippet keybindings, that inserts with ⇧↩.
Update help content.
[trivial] Rename “Auto-Detect,” the option detecting the file encoding automatically, to “Automatic.”
[trivial] Omit surrogate pair code points in the character inspector if the character consists of multiple Unicode characters.
[trivial] Adjust the drawing position of the zoomed character in the character inspector.
[trivial] Update some labels in the Format pane.
[trivial] Display default values as the input field's placeholder for window size setting when empty.
[trivial] Remove the snippet keybindings setting migration from CotEdtiror 2.x format and earlier.
[trivial] Make the identifier for document autosaving longer.
[dev] Update the build environment to Xcode 11.5 (Swift 5.2).
[dev] Replace YAML.framework with Yams.
[dev] Remove Carthage dependency.
[dev] Migrate codesign-specific build settings to .xcconfig (thanks to Yoshimasa Niwa!).
Fixes:
Fix an issue where the application crashed when a hanging indent depth becomes larger than the editor area.
Fix an issue where the application hung up by extending the selection with shortcut ⌥⇧→ when the character to select is a national flag emoji.
Fix an issue where the item “Automatic” (ex. Auto-Detect) was missing in the encoding selections in the open panel.
Fix an issue with multiple cursors where extra characters were deleted when performing forward delete with selection.
Fix an issue with multiple cursors where just a single UTF-16 character was deleted instead of the whole character when the character to delete consists of multiple UTF-16 characters.
Fix an issue where the outline menu could select the wrong item while typing.
Fix an issue where the line numbers could be shifted when printing vertical text orientation documents.
Fix an issue where line endings could remain when deleting duplicate lines with multiple selections.
Fix an issue in the character inspector where the inspector was not shown when the target character is hidden due to scroll.
Fix an issue in the line number view where the line number of the current line was not bolded under a specific condition.
Fix an issue in scripting with AppleScript/JXA where the application crashed by performing string in ... command.
Fix an issue in scripting with AppleScript/JXA where the contents of a document can rarely be overwritten with the contents of another document window under very specific conditions.
Fix an issue with scripting with AppleScript/JXA where the line range command selected a wrong range when the line endings of the document are CRLF.
Fix an issue with scripting with AppleScript/JXA where selecting a single line by specifying a single integer argument to line range did not work.
Fix an issue in the editor where lines were initially wrapped at the wrong position when the text orientation is vertical.
Fix an issue where the theme color was not applied to the color of typed text in split view.
Fix an issue in the RTL text mode where the page guide disappeared when lines are unwrapped.
Fix an issue where the current line highlight did not update properly after changing some settings.
Fix an issue in the find panel's input fields where a regular expression pattern for Unicode code point was not highlighted properly when the hex contains uppercase letters.
Fix an issue in the find panel's input fields where invisible control characters were drawn in the normal text color under specific conditions.
Fix an issue where the print font name in the Print pane was drawn in black even in the dark mode.
Fix an issue in the editor where the previous drawing could remain in a blank space after changing a display setting of the editor.
Fix the help button in the advanced find options view.
Fix missing localization.

New in CotEditor 3.8.12 (Mar 8, 2020)

New in CotEditor 3.8.11 (Feb 28, 2020)

New in CotEditor 3.8.10 (Feb 17, 2020)

New in CotEditor 3.8.9 (Jan 30, 2020)

New in CotEditor 3.8.8 (Jan 28, 2020)

New in CotEditor 3.8.7 (Dec 9, 2019)

New in CotEditor 3.8.6 (Dec 8, 2019)

New in CotEditor 3.8.5 (Nov 14, 2019)

New in CotEditor 3.8.4 (Oct 23, 2019)

New in CotEditor 3.8.3 (Oct 21, 2019)

New in CotEditor 3.8.2 (Oct 14, 2019)

New in CotEditor 3.8.1 (Oct 11, 2019)

New in CotEditor 3.7.8 (Jul 3, 2019)

New in CotEditor 3.7.7 (Jul 3, 2019)

New in CotEditor 3.7.6 (Jun 18, 2019)

New in CotEditor 3.7.5 (May 27, 2019)

New in CotEditor 3.7.4 (May 20, 2019)

New in CotEditor 3.7.3 (Apr 27, 2019)

New in CotEditor 3.7.2 (Apr 4, 2019)

New in CotEditor 3.7.1 (Feb 24, 2019)

New in CotEditor 3.7.0 (Feb 14, 2019)

New in CotEditor 3.6.12 (Jan 16, 2019)

New in CotEditor 3.6.11 (Jan 7, 2019)

New in CotEditor 3.6.10 (Jan 3, 2019)

New Features:
Add syntax style for “Kotlin”.
Improvements:
Change counting method of the cursor location and column to 1-based (formerly 0-based).
Optimize syntax highlight application so that the time displaying the rainbow cursor reduces significantly with a large document.
Make editing multiple replacement definitions undoable.
Syntax highlight regular expression patterns in the syntax style editor, multiple replacement definitions, and the custom sort dialog.
Move focus to the editor when lines are selected by clicking line numbers.
Apply update of “Line numbers”, “Page guide” and “invisible characters” visibility options in the preferences immediately to opened documents.
Suppress the dialog asking if you want to keep the document when an unsaved empty document is about to close, and silently discard the auto-saved backup file.
Change the label of the option “Count each line ending as one character” in General pane to “Ignore line endings when counting characters” (the value reversed).
Enable the “Share” button in toolbar also in the Text Only mode.
Display also mapping conflicts of interpreters in the syntax style file mapping conflict dialog.
Make composition views for the Share feature document-modal also in macOS 10.12.
Disable “Hide Toolbar” command for the preferences window.
Improve general performance.
[trivial] Make the minimum width of outline inspector wider.
Update German localization (Thanks to J-rg!).
Update cot command-line tool:
Accept a negative value for --column option to count from the end of the line.
Change --column count from 0-based to 1-based.
Improve error message when failed.
Fix an issue where the last empty line was ignored when specifying the cursor position with --line option.
Fixes:
Fix an issue where the final number of the replacement in the progress dialog was occasionally underrated.
Fix an issue where the cursor could not be set at the end of the document via AppleScript or cot command.
Fix an issue where syntax highlight was not updated in specific condition when deleted.
Fix an issue where line number views did not update when the editor is scrolled via script.
Fix the preferences pane switching animation under macOS 10.13 and earlier.
[trivial] Fix a potential issue where last empty line number could be drawn at the first line position under specific conditions.
[trivial] Fix an issue where editor occasionally scrolled unintendedly when an arrow key is pressed.

New in CotEditor 3.6.9 (Dec 13, 2018)

New in CotEditor 3.6.8 (Dec 10, 2018)

New in CotEditor 3.6.7 (Dec 3, 2018)

New in CotEditor 3.6.6 (Nov 20, 2018)

New in CotEditor 3.6.5 (Nov 20, 2018)

New in CotEditor 3.6.4 (Nov 20, 2018)

New in CotEditor 3.6.3 (Oct 29, 2018)

New in CotEditor 3.6.2 (Oct 14, 2018)

New in CotEditor 3.6.1 (Oct 10, 2018)

New in CotEditor 3.6.0 (Sep 25, 2018)

New in CotEditor 3.5.4 (Sep 18, 2018)

New in CotEditor 3.5.3 (Sep 10, 2018)

New in CotEditor 3.5.2 (Sep 10, 2018)

New in CotEditor 3.5.1 (Aug 28, 2018)

New in CotEditor 3.5.0 (Aug 14, 2018)

Brand-new toolbar:
CotEditor now has more modern toolbar buttons that match for the latest macOS.
Bring your cursor up to the editor center:
The overscrolling feature allows you to scroll past the bottom of the document.
Highlight selected words:
Editor finds the same words to the selected one in the document automatically and highlights them.
Optimized Window preferences pane:
Setting options in the Window pane were reduced to simplify the preferences and to let the application behave more properly for a macOS application.
New Features:
New toolbar icons.
Highlight the same substrings of the selection automatically (Customize the behavior in General preferences pane).
New option to allow overscrolling (Customize the behavior in Window preferences pane).
Enable to change the tab width of a specific document to a desired number.
Let the input fields in the find panel accept text scaling commands, such as “Bigger”, “Smaller” and “Reset to Default”.
Improvements:
Add command “Select All Find Matches” in Find menu.
Improve the editor's scrolling behavior to scroll along the predominant axis.
Add menu item to toggle the visibility of the sidebar inspector.
Remove some setting options for windows such as window size and visibilities of document inspector and status bar from Window preferences pane. From now on, the latest change to a window will be inherited to future windows just like other standard Cocoa applications.
Remove “length” display in the status bar.
Remove feature to change only the frontmost editor's opacity temporary. From this, view opacity property on AppleScript is also deprecated.
Keep the cursor position as possible after the editor content is updated to the latest version modified by another process.
Display current user's system-wide setting for window tabbing in the menu on the Window pane.
Optimize the performance of character counting.
Improve general stability of the print operation.
Optimize auto URL detection with paste to a large document.
Update Python syntax style for Python 3.7.
Update Swift syntax style for Swift 4.2 and some improvements.
trivial Update some Japanese localization.
trivial Update editor opacity sample tips.
trivial non-AppStore ver.: Update Sparkle framework.
Fixes:
Fix an unlocalized text.

New in CotEditor 3.4.4 (Jul 9, 2018)

New in CotEditor 3.4.3 (Jun 27, 2018)

New in CotEditor 3.4.2 (Jun 5, 2018)

New in CotEditor 3.4.1 (May 28, 2018)

New in CotEditor 3.4.0 (May 15, 2018)

HIGHLIGHTS:
Apply multiple replacement rules at once:
Using the new feature called “Multiple Replacement”, you can batch process text replacement with a preset definition containing multiple replacement rules. Those definitions can also be saved to reuse later.
Document outilne at a glance:
Now, you can look over the auto-extracted document outline, which you might see in the navigation bar above the editor, in the sidebar inspector.
Much easier regular expression pattern editing in find panel:
The new input fields in the find panel syntax-highlight their contents when the regular expression option is enabled. In addition, the input fields also recognize and handle brace pairs properly just like the main document editor does.
NEW FEATURES:
Replace matches with preset replacement definition (Find > Multiple Replace).
Add outline menu to side bar.
Select tabbed window with ⌘+number.
Parse regular expression pattern in find string field in regular expression mode:
Syntax highlight.
Highlight matching brace by moving cursor.
Select the range surrounded by a brace pair by double-clicking a brace.
Add a new theme “Resinifictrix”.
IMPROVEMENTS:
Give haptic feedback on pinch zoom when the scale becomes 100%.
Adjust background color for selected range in inactive editor to avoid unreadable text, especially by a dark theme.
Make the current line highlight semi-transparent if editor opacity is not 100%.
Ignore brackets escaped with on bracket pair highlight.
Restore selected inspector pane on window restoration.
Move “Get Info” and “Show Incompatible Characters” menu items into newly added View > Inspector submenu.
Update highlight style of icons in the side inspector.
Enable importing multiple syntax/theme setting files at once.
Import syntax style files via drag and drop to the Installed Syntax Styles area.
Avoid merging multiple separators next to each other in the navigation menu into a single separator.
Delete the feature alerting inconsistent encoding declaration in document on saving.
Remove ⌘1 shortcut for Console from default key-binding settings.
Avoid switching to inactive tabbed window only to show a syntax highlighting indicator.
Remove the workaround for the issue of editor scrolling on early macOS High Sierra that was introduced on CotEditor 3.2.4.
Optimize syntax highlighting performance.
Update “Java” syntax style by adding term var (Thanks to Marc Prud'hommeaux!)
Use monospace digits where suitable.
Update Sparkle framework.
FIXES:
Fix a possible crash with continuous find/replacement.
Fix an issue where the font settings cannot be changed on macOS 10.12.
Fix an issue where the cursor position did not follow the line when Move Up command was performed at the end of the document.
Fix an issue where the find result in the input field of the find panel did not clear when a new find string was set from the find history menu.
Fix an issue where the sidebar inspector did close inward when the pane was switched after opening the sidebar outward.
Fix an issue where snippet keybindings could not be restored to the default correctly.
Fix an issue where progress spinner for outline menu displayed unwantedly on document opening.
Fix some UI text.

New in CotEditor 3.3.5 (Mar 10, 2018)

New in CotEditor 3.3.4 (Mar 4, 2018)

New in CotEditor 3.3.3 (Feb 25, 2018)

New in CotEditor 3.3.2 (Feb 12, 2018)

New in CotEditor 3.3.1 (Feb 12, 2018)

New in CotEditor 3.3.0 (Feb 9, 2018)

HIGHLIGHTS:
Handle documents on launch in more intelligent way:
We improved various behaviors regarding document handling on launch for letting you start working with your documents more and more right away.
Sort lines as you desire:
New “Sort by pattern” enables you to sort selected lines by specific column or fully freely using the regular expression. Of course, through a neat user interface.
iCloud document (finally):
We know it's kind of too late, but CotEditor now supports the iCloud document, so that CotEditor has a own space on iCloud, moves files to there easier, and can resolve a file modification conflict visually.
Improvement on the Share featue:
Document sharing in CotEditor gets more feature.
More macOS native look & feel:
Added small tweaks to the user interface. You don't see any different? Then, that's good. It means it worked.
More international:
CotEditor now supports the RTL (right-to-left) writing direction for such as Arabic, Hebrew, Hindi and others. Furthermore, Portuguese localization is newly added.
NEW FEATURES:
iCloud document.
Open a document in the existing Untitled window that was created automatically on an open/reopen event, if exists.
New feature “Sort by pattern,” which enables sort selected lines by specific column or fully freely using the regular expression.
Add new setting option “Reopen windows from the last session on launch” in General pane.
Add new setting option “including whitespace-only lines” for “trim trailing whitespace” command in General pane.
Introduce “Right to Left” writing direction by changing the direction from Format > Writing Direction menu.
Add new commands “Half-width to Full-width” and “Full-width to Half-width” to Text > Transformations menu.
Add Portuguese localization (thanks to BR Lingo!).
Add the following encodings to the encoding list (To activate new encodings, restore default once in Preferences > Format > Edit List.):
Thai (Windows, DOS)
Thai (ISO 8859-11)
More integrated Share feature:
Share documents with other people through iCloud drive with “Add People” command in the File > Share menu.
Enable sharing a document that has not been saved yet.
Remove the feature that shares document content text from the File menu (You can still share selected text from the context menu).
Other small improvements.
IMPROVEMENTS:
Change the system requirement to OS X 10.11 El Capitan and later.
Add clear button to the input fields in the find panel.
Gather the “open a new document” “on launch” and “when CotEditor becomes active” options and create new “When nothing else is open:” option.
Enable “shift right” and “shift left” commands to process multiple selections.
Scroll console view after getting a new message to make it visible.
Display sharing window within the target document window.
Swap position of “View” with “Format” menu to conform to the Apple's Human Interface Guidelines.
Move the menu item changing the text orientation into Format > Writing Direction.
Display full encoding name in the status bar instead of the IANA charset name.
Add tooltips to the Unicode normalization forms in Text menu.
Append “Option-Command-T” shortcut to “Show/Hide Toolbar” menu item.
Remove “Color Code Panel” command from the “Window” menu (use “Edit Color Code…” command in “Text” menu instead).
Remove “share find text with other applications” option.
Restore the last viewed preference pane when Preferences is opened.
Add an input field for the editor opacity setting.
Adjust scroll after toggling line wrap.
Add scroll margin to the right side of find panel fields dynamically, so that entire inputs can be seen even when find/replacement result is shown.
Update Python syntax style: Fix highlight of string and bytes literals.
Tweak acknowledgments window design.
Update Help contents style.
Some minor UI improvements and fixes.
Update Japanese localization to conform with the modern macOS localization rules.
Update the internal source code to Swift 4.
non-AppStore ver.: Now, the application updater (Sparkle) can download and update CotEditor automatically, as like before CotEditor was Sandboxed. This feature can actually be used first updating CotEditor 3.3.0 to CotEditor 3.3.1 or later.
FIXES:
Fix an issue where the word suggestion in the Touch Bar cannot insert a word starts with a symbol correctly, and, therefore, a workaround was added on CotEditor 3.2.3.
Fix an issue where character inspector could expand vertically too much with some specific characters.
Fix an issue where invisible symbols for control characters were not drawn in input fields in find panel.
Fix scroll position in the help viewer on jumping to a help page from CotEditor.
Fix some unlocalized text.

New in CotEditor 3.2.8 (Jan 22, 2018)

New in CotEditor 3.2.7 (Dec 29, 2017)

New in CotEditor 3.2.6 (Dec 12, 2017)

New in CotEditor 3.2.5 (Nov 28, 2017)

New in CotEditor 3.2.4 (Nov 6, 2017)

New in CotEditor 3.2.3 (Nov 6, 2017)

New in CotEditor 3.2.2 (Oct 2, 2017)

New in CotEditor 3.2.1 (Aug 28, 2017)

New in CotEditor 3.2.0 (Jul 15, 2017)

HIGHLIGHTS:
File Drop feature improvements:
The File Drop feature settings were renewed. You can set file drop settings only for an indivisual synatx style on the new File Drop pane in preferences.
Cursor position setting on snippet key bindings:
You can now speficy the cursor positon after inserting a snippet text with a key binding.
"write to console" command for scripting:
A new AppleScript/JXA command inserting a custom string to the scripting console was added.
More performance optimizations:
We reviewed performance bottlenecks on handling large size document (again), and tuned them up.
NEW FEATURES:
Now, key binding snippets can set cursor position.
Add “Surround Selection With” actions to “Text” menu.
Add a new AppleScript/JXA command write to console so that users can insert own message to the CotEditor's console.
Add syntax style for “Fortran”.
Improve File Drop feature:
Now, you can add a file drop setting only for a specific syntax style.
Add description field to the setting table.
Draw capsule for variables in the insertion format setting field.
Update the default file drop settings.
IMPROVEMENTS:
Change syntax style detection behavior to set to “None” style if no appropriate style can be found on file opening.
Significantly improve the performance of “Replace All” with a large document.
Avoid hiding console panel when CotEditor becomes not the frontmost application.
Reduce highlight parsing time with large size document.
Improve performance of closing large size document.
Improve drawing performance of a large size document with a non-opaque background (Not enough good as an opaque one but still better than before).
Add hidden “Reload All Themes/Styles” menu item to theme/syntax style action menus in Preferences (visible with Option key).
Enable changing text size with a single stroke by pressing and holding Touch Bar's Text Size button.
Improve invisible character drawing on a non-opaque view.
Improve auto-brackets/quotes insertion behavior with multiple selections.
Improve the setting file naming rule for when the name overwraps with an existing setting.
Improve condition to insert a closing quote automatically.
Improve the encoding declaration detection.
Update “Ruby” syntax style to fix commands highlight.
Update “MATLAB” syntax style to fix strings highlight.
Remove less useful “Inline script menu items into contextual menu” option.
Update German localization (Thanks to J-rg!).
And some minor improvements and fixes.
FIXES:
Fix an issue where the application could hang up when lots of tabbed windows are about open.
Fix an issue where the selections after “Replace All” in selection shifted one character.
Fix an issue where the document syntax style could be back to the default if the current style was set manually and the document was modified by another process.
Fix an issue where the status bar stopped updating after toggling the inspector sidebar.
Fix an issue where the “Cancel” button in the dialog shown when changing the Auto Save setting in General pane didn't revert the actual setting state.
Fix an issue where author of a theme was not shown in the Appearance pane.
Fix an issue where width and height in the window size setting window were swapped.
Fix an issue where current line highlight occasionally blinked unwontedly.
Fix a possible crash on highlighting matching brace.
Fix few memory leaks.

New in CotEditor 3.1.8 (Mar 15, 2017)

New in CotEditor 3.1.7 (Mar 3, 2017)

New in CotEditor 3.1.6 (Mar 2, 2017)

New in CotEditor 3.1.5 (Feb 22, 2017)

New in CotEditor 3.1.4 (Feb 20, 2017)

New in CotEditor 3.1.3 (Jan 31, 2017)

New in CotEditor 3.1.2 (Dec 10, 2016)

New Features:
Add Scripting hook feature for document opening/saving (thanks to Kaito Udagawa!): See “Adding scripting hooks for CotEditor scripts” from the Help menu > CotEditor Scripting Manual > “About Scripting” for details.
Support AppleScript's script bundle (.scptd) for scripting (thanks to Kaito Udagawa!).
Add a new AppleScript property expands tab for document object (thanks to Kaito Udagawa!).
Improvements:
Change the outline navigation arrows direction in the navigation bar if text orientation is vertical.
Add tooltips to the line endings menu in the toolbar.
Improve calculation of the vertical position of line numbers.
Tweak the behavior of the incompatible character table and the find result table to highlight the correspondent range in the editor every time when clicking a row in the table.
Update default settings about the visibility of invisible characters: From this change, the invisible character settings can be reset. If so, please reset from the “Appearance” pane in the preferences.
non-AppStore ver.: Update Sparkle framework to version 1.15.1.
Fixes:
Fix a possible crash on changing document's encoding lossy.
Fix an issue where application crashed if syntax editor panel becomes too small.
Fix an issue where the print icon in the toolbar didn't work.
Fix an issue where editor views didn't update after changing the body font or the visibility of the other invisible characters.
Fix an issue where no error message raised when a text encoding reinterpretation failed.
Fix an issue where the current line highlight also highlights the last line when the cursor is in the second last line.
Fix an issue where the title of the menu item toggling invisible character visibility didn't reflect the frontmost window state.
Fix an issue where the text size slider in the Touch Bar didn't update if text size was updated excepting via Touch Bar while the slider is shown.
Address an issue with drawing area of zoomed character view in character inspector popover.
Fix a typo in the English menu
Misc.:
You can now find CotEditor scripts on GitHub Wiki.

New in CotEditor 3.1.1 (Nov 18, 2016)

New in CotEditor 3.1.0 (Nov 17, 2016)

New in CotEditor 3.0.5 (Nov 15, 2016)

New in CotEditor 3.0.4 (Oct 31, 2016)

New in CotEditor 3.0.3 (Oct 25, 2016)

New in CotEditor 3.0.2 (Oct 17, 2016)

New in CotEditor 3.0.1 (Oct 11, 2016)

New in CotEditor 3.0.0 (Oct 4, 2016)

Looks almost the same, yet a brand-new inside.
Now, CotEditor 3 is 100% rewritten in Swift.
NEW FEATURES:
Display recent used syntax styles at the top of the toolbar syntax style popup list.
Add individual “Block Comment”, “Inline Comment” and “Uncomment” actions in Text menu unlike the “Comment Selection” action changes its behavior intelligently.
Add Italian localization.
Support window tabbing on macOS Sierra:
Add “New Tab” action to File menu.
Sync sidebar visibility among tabs in a window.
IMPROVEMENTS:
Support macOS 10.12 Sierra and drop support for OS X 10.8 Mountain Lion and 10.9 Mavericks.
Migrate all source code from Objective-C to Swift.
Update application icon.
Enable Autosave and Versions by default.
Inserting single surrogate character is no more valid.
Update toolbar.
Update preferences icons.
Exclude file extension from the initial selection in document save panel.
Update key binding setting format. Not compatible with previous key bindings setting. Please customize again in the preferences window.
Auto-sync Script menu with script folder. Now, you don't need anymore to update script menu after script folder modification.
New acknowledgements window.
Update “Swift” syntax style to Swift 3.0.
Update “Coffee Script” syntax style for the block regular expression.
Improve syntax highlighting algorithm with symbols.
New “Go To Line” panel.
Display “Not Found” in the find string field in the find panel also when “Find All” failed.
Remove several less important toolbar items.
Remove the feature that changes the line height of current document from the “Format” menu.
Remove “Not writable” alert which displayed on file opening.
Remove “Set as Default” button in the editor opacity panel.
Change specification not to treat full-width spaces as indent.
Add help buttons to syntax style editor.
Make text font, theme and tab width restorable from the last session.
Make indent deletion more naturally.
Remove byte count display in document inspector.
Display also an accurate file size in document inspector.
Display dialogs for changing file encoding as a document-modal sheet.
Move scripting manual into help contents.
Make window size setting window translucent.
Avoid expanding status bar into side inspector.
Improve line height calculation.
Keep visible area after toggling text-wrapping.
Improve scrolling with line number view drag.
Better syntax highlighting while editing.
Enable activate “Show Invisibles” action even if all of invisible characters were set as not shown when the document was opened.
Update find panel search algorithm:
Change the regular expression engine from Onigmo to the ICU library. From this, the reference symbol of matches is changed from 1 style to $1.
Update line-up of the advanced search options.
Remove the following less important text actions:
Insert Encoding Name with “charset=”
Insert Encoding Name with “encoding=”
FIXES:
Fix an issue find string is not shared with other applications after quitting CotEditor.
Fix an issue where some of script APIs returned always string with LF line endings.
Address an issue with drawing area of zoomed character view in character inspector popover.

New in CotEditor 3.0.0 RC 2 (Oct 1, 2016)

New in CotEditor 3.0.0 RC (Sep 30, 2016)

New in CotEditor 3.0.0 Beta 3 (Sep 23, 2016)

New in CotEditor 3.0.0 Beta 2 (Sep 21, 2016)

New in CotEditor 3.0.0 Beta (Sep 15, 2016)

HIGHLIGHTS:
Swift migration:
All of source codes for CotEditor was completely rewritten in Swift from Objective-C.
Tabbed window:
Finally, CotEditor now supports tabbing windows on Sierra.
Brushed-up look:
Graphic images like toolbar icons and application icon were also updated to get more modern look.
Support macOS Sierra:
Hello to Sierra and good-bey to Mountain Lion and Mavericks.
WHAT'S NEW:
Known Issues:
Some window states are not restored.
New Features:
Support window tabbing on macOS Sierra.
Display recent used syntax styles at the top of the toolbar syntax style popup list.
Add individual “Block Comment”, “Inline Comment” and “Uncomment” actions in Text menu unlike the “Comment Selection” action changes its behavior intelligently.
Improvements:
Support macOS Sierra and drop support for OS X Mountain Lion and Mavericks.
Migrate all source code from Objective-C to Swift.
Update application icon.
Inserting single surrogate character is no more valid.
Update toolbar.
Update preferences icons.
New acknowledgements window.
Update “Swift” syntax style to Swift 3.0.
Update “Coffee Script” syntax style for the block regular expression.
Improve syntax highlighting algorithm with symbols.
New “Go To Line” panel.
Remove “Not writable” alert which displayed on file opening.
Remove “Set as Default” button in the editor opacity panel.
Change specification not to treat full-width spaces as indent.
Open sidebar inward on Yosemite.
Add help buttons to syntax style editor.
Make indent deletion more naturally.
Remove byte count display in document inspector.
Display also an accurate file size in document inspector.
Display dialogs for changing file encoding as a document-modal sheet.
Move scripting manual into help contents.
Make window size setting window translucent.
Avoid expanding status bar into side inspector.
Improve line height calculation.
Keep visible area after toggling text-wrapping.
Improve scrolling with line number view drag.
Better syntax highlighting while editing.
Enable activate “Show Invisibles” action even if all of invisible characters were set as not shown when the document was opened.
Update key binding setting format:
Not compatible with previous key bindings setting. Please customize again in the preferences window.
Update find panel search algorithm:
Change the regular expression engine from Onigmo to the ICU library: From this, the reference symbol of matches is changed from 1 style to $1.
Update line-up of the search options.
Remove the following less important text actions:
Insert Encoding Name with “charset=”
Insert Encoding Name with “encoding=”
Remove the following less important toolbar items:
Show / Hide Navigation Bar
Show / Hide Line Numbers
Show / Hide Status Bar
Remove the feature that changes the line height of current document from the “Format” menu:
From this, line spacing property on AppleScript is also deprecated.
Fixes:
Fix an issue where some of script APIs returned always string with LF line endings.

New in CotEditor 2.5.7 (Aug 22, 2016)

New in CotEditor 2.5.6 (Jun 16, 2016)

NEW FEATURES:
Add newly rewritten syntax styles for “C” and “C++”: From this change, previous “C, C++, Objective-C” syntax style is deleted.
Add syntax styles for “MATLAB” and “Verilog”.
IMPROVEMENTS:
Update “Markdown” syntax style
Focus back on the find panel after performing “Find All”, “Replace All” and “Highlight”.
Change to use the body text color for line numbers on printing that was previously always black.
Improve scroll behavior with arrow keys.
And some other trivial improvements.
FIXES:
Fix an issue where the selected marks of line height / tab width in the Format menu disappeared.
Fix an issue where unselected last line number could be highlighted if the text orientation is vertical.
Fix an issue where invisible characters were drawn off to the side if the text orientation is vertical.
Fix an issue where documents were marked as “Edited” just after document duplication if line ending is not the default one.
Fix an issue where detected indent style was applied not only on file opening but also every time when file reverted.
Fix an issue where “Find All” result view did not open on OS X Mountain Lion.
Fix an issue where incompatible character markup could broken if undo/redo lossy encoding change continuously.
Fix an issue where keybindings of some submenu containers were customizable.
Fix an issue where tab width could be set as `0`.
Fix an issue where tab width changing via AppleScript changes only the tab width in the focused editor rather than all split editors.
Fix an issue where byte length display did not update after changing file encoding.
Fix document counting as followings:
“Char Count” counts composite characters as well as CR/LF as single characters and omits counting line endings if “Count each line ending as one character” option is off.
“Length” counts bytes in UTF-16 literally and always counts line endings even if “Count each line ending as one character” option is off.
“Location” and “Column” count characters just like “Char Count”.

New in CotEditor 2.5.5 (May 23, 2016)

New in CotEditor 2.5.4 (May 13, 2016)

New in CotEditor 2.5.3 (May 12, 2016)

New in CotEditor 2.5.2 (May 4, 2016)

New in CotEditor 2.5.1 (Apr 25, 2016)

New in CotEditor 2.5.0 (Apr 22, 2016)

New Features:
Add independent “Unicode (UTF-8) with BOM” encoding to encoding list.
Respect the existence of the UTF-8 BOM in opened files.
Enable switching the document encoding between with and without BOM from the toolbar popup button and the “Format” menu.
The “Unicode (UTF-8) with BOM” item will be automatically added to just after the normal “Unicode (UTF-8)”.
Now, the execute permission can be given to the file to save from the save panel.
Add spelling auto correction option (in “Edit” pane).
Add a new theme “Lakritz”.
Improvements:
Update cot command-line tool:
Create a new file if a non-existent file path is passed in with `--new` option.
Revert “Highlight” and “Unhighlight” actions in “Find” menu.
Improve font-size changing behavior:
Smoother pinch-zoom.
Now font-size change applies only to the focused editor.
Enable pinch-zoom to make font smaller than default font size.
Font size changing doesn't affect the actual font anymore but just scale characters visibly.
Fix an issue where font-size changing could remove hanging indent.
Fix an issue where layout of split editors will be broken if the font of one of the other split editors is changed.
Separate the “Enable smart quotes and dashes” into “Enable smart quotes” and “Enable smart dashes” (in “Edit” pane).
Apply the following text actions to whole document if no text is selected:
Indentation > Convert Indentation to Tab / Spaces
Lines > Sort
Lines > Reverse
Lines > Delete Duplicates
Optimize document opening performance with large file.
Add “Copy as Rich Text” action to the contextual menu.
Improve recovering status of unsaved documents on window resume.
Improve line number view drawing with selection on vertical text mode.
Improve invisibles drawing:
Optimize drawing performance (ca. 2x).
Better drawing if anti-aliasing is off.
Display the following dialogs as a document-modal sheet:
The dialog asking encoding compatibility on saving.
The print progress panel.
Avoid registering indentation conversion action to the undo history if no text was changed.
Better error message on file opening.
Suppress trimming whitespace at the editing point on auto-saving when “Trim trailing whitespace on save” is on.
Tweak some label text in preferences.
Fixes:
Fix an issue where printing area could be cropped.
Fix an issue where the background of navigation/status bars were not drawn under a specific condition.
Fix an issue where the numbers in the line number view could be drawn in a wrong place if the editor is vertical text mode and unwrapped.
Fix an issue where document could not be drawn until the end of the file on legacy OS if the file contains control characters.
Fix an issue on Mavericks and earlier where the application hung up if tried to print line numbers by vertical text layout on printing.
Fix an issue where line numbers could be drawn at a bit shifted position or even cropped on printing.
Fix XML document icon.
Fix some unlocalized text.

New in CotEditor 2.5.0 Beta (Apr 13, 2016)

HIGHLIGHTS:
New “Unicode (UTF-8) with BOM” encoding:
No more suffering by the invisible UTF-8 BOM. Now, you can check from the toolbar whether your UTF-8 document has a BOM, and even switch between with and without it easily.
Adding the execute permission from save panel
As you can give the execute permission on the save panel, scripts can be run immediately after the creation without chmod.
Smoother pinch-zoom
The pinch-zoom becomes smoother and more intelligent. For instance, how about splitting editors and scale up just one side from them?
NEW FEATURES:
Now, the execute permission can be given to the file to save from the save panel.
Add spelling auto correction option (in “Edit” pane).
Add a new theme “Lakritz”.
Add independent “Unicode (UTF-8) with BOM” encoding to encoding list:
Respect the existence of the UTF-8 BOM in opened files.
Enable switching the document encoding between with and without BOM from the toolbar popup button and the “Format” menu: the “Unicode (UTF-8) with BOM” item will be automatically added to just after the normal “Unicode (UTF-8)”.
IMPROVEMENTS:
Revert “Highlight” and “Unhighlight” actions in “Find” menu.
Separate the “Enable smart quotes and dashes” into “Enable smart quotes” and “Enable smart dashes” (in “Edit” pane).
Optimize document opening performance with large file.
Add “Copy as Rich Text” action to the contextual menu.
Improve recovering status of unsaved documents on window resume.
Improve line number view drawing with selection on vertical text mode.
Avoid registering indentation conversion action to the undo history if no text was changed.
Suppress trimming whitespace at the editing point on auto-saving when “Trim trailing whitespace on save” is on.
Update cot command-line tool:
Create a new file if a non-existent file path is passed in with --new option.
Improve font-size changing behavior:
Smoother pinch-zoom.
Now font-size change applies only to the focused editor.
Enable pinch-zoom to make font smaller than default font size.
Font size changing doesn't affect the actual font anymore but just scale characters visibly.
Fix an issue where font-size changing could remove hanging indent.
Fix an issue where layout of split editors will be broken if the font of one of the other split editors is changed.
Apply the following text actions to whole document if no text is selected:
Indentation > Convert Indentation to Tab / Spaces
Lines > Sort
Lines > Reverse
Lines > Delete Duplicates
Improve invisibles drawing:
Optimize drawing performance (ca. 2x).
Better drawing if anti-aliasing is off.
Display the following dialogs as a document-modal sheet:
The dialog asking encoding compatibility on saving.
The print progress panel
FIXES:
Fix an issue where printing area could be cropped.
Fix an issue where the background of navigation/status bars were not drawn under a specific condition.
Fix an issue where the numbers in the line number view could be drawn in a wrong place if the editor is vertical text mode and unwrapped.
Fix an issue where document could not be drawn until the end of the file on legacy OS if the file contains control characters.
Fix an issue on Mavericks and earlier where the application hung up if tried to print line numbers by vertical text layout on printing.
Fix an issue where line numbers could be drawn at a bit shifted position or even cropped on printing.
Fix XML document icon.
Fix some unlocalized text.

New in CotEditor 2.4.4 (Mar 16, 2016)

New in CotEditor 2.4.3 (Mar 2, 2016)

New in CotEditor 2.4.2 (Feb 12, 2016)

New in CotEditor 2.4.1 (Feb 12, 2016)

New in CotEditor 2.4.0 (Feb 9, 2016)

HIGHLIGHTS:
Improve text finder:
CotEditor re-implemented text find actions by own code. More sophisticated and integrated UI makes your text search process much more intuitive.
Brackets and quotes balancing:
For instance, typing { inserts the corresponding } then moves the cursor into the brackets automatically. The feature helps reduce bothering cursor movement and contributes to your smart coding.
Clickable URL links in documents:
This new option detects URL strings in your documents and provide them as clickable & quick-lookable links.
Better detection on the file opening:
We reviewed the previous file detection code and improved the precision of the encoding detection. Furthermore, CotEditor 2.4 alerts about file that isn't obviously a text file in order to avoid unwanted hang-up.
WHAT'S NEW:
New Features:
New option balancing brackets and quotes (in “Edit” pane).
New option making URL in document clickable link (in “General” pane).
On El Capitan, hidden file visibility can be toggled via checkbox in the document open panel.
Add the following encodings to the encoding list:
Arabic (ISO 8859-6)
Hebrew (ISO 8859-8)
Nordic (ISO Latin 6)
Baltic (ISO Latin 7)
Celtic (ISO Latin 8)
Western (ISO Latin 9)
Romanian (ISO Latin 10)
IMPROVEMENTS:
cot command now opens symbolic link target rather than the link itself.
On El Capitan, make option control of the document open panel visible.
Improve syntax highlighting for quoted strings and comment.
Display alert if file to open seems to be a kind of a media (binary) file.
Improve file encoding detection.
Update default priority order of encoding detection.
Improve character compatibility check.
Better error message on file opening.
Increase the number of significant digits in file size display.
Take a safety measure for in case the key binding setting file is corrupt.
Truncate outline label in the navigation bar by appending ellipsis if it overflows.
Move some options position within “General” pane and “Edit” pane in preferences window.
Rename the main text input area in window from “View” to “Editor”.
Update Shell Script syntax style:
Fix variable highlight with _.
Improve text finder:
Now, “Find All” action also highlights all matched strings in the editor, and thereby “Highlight” action is removed.
Change advanced find option setting from popup menu to popover.
On Yosemite and later, a visual feedback is shown when the search wrapped.
Keep selected range after “Replace All” with in-selection option.
Display total number of found in find panel on simple find actions.
Now, “Find All” and “Replace All” actions are able to process multiple selections.
Add Python syntax to the regular expression syntax options.
Revert “Use selection for Replace” action to allow using an empty string.
Update layout and style.
FIXES:
Fix cursor location after moving lines with empty selection.
Fix line-wrapping behavior when the line contains a long unbreakable word.
Fix an issue where the application crashed by an invalid find regular expression option combination.
Fix an issue where the application could crash just after starting dictation.
Fix an issue where keybinding setting could fail.
Fix an issue where the scroll bar style didn't change to light color on dark background theme.
Fix an issue where the character inspector didn't show up on Mavericks and earlier.
Fix an issue where split orientation setting wasn't applied.
Fix an issue where “Jump to Selection” action didn't jump to selection in editor if other text box is focused.
Fix an issue where some table cells didn't change their text color when selected.
Fix tiny memory leaks.

New in CotEditor 2.4.0 Beta (Feb 1, 2016)

NEW FEATURES:
New option balancing brackets and quotes (in “Edit” pane).
New option making URL in document clickable link (in “General” pane).
On El Capitan, hidden file visibility can be toggled via checkbox in the document open panel.
Add the following encodings to the encoding list:
Arabic (ISO 8859-6)
Hebrew (ISO 8859-8)
Nordic (ISO Latin 6)
Baltic (ISO Latin 7)
Celtic (ISO Latin 8)
Western (ISO Latin 9)
Romanian (ISO Latin 10)
ADDITIONS/CHANGES:
cot command now opens symbolic link target rather than the link itself.
On El Capitan, make option control of the document open panel visible.
Improve syntax highlighting for quoted strings and comment.
Display alert if file to open seems to be a kind of a media (binary) file.
Improve file encoding detection.
Update default priority order of encoding detection.
Improve character compatibility check.
Better error message on file opening.
Take a safety measure for in case the key binding setting file is corrupt.
Truncate outline label in the navigation bar by appending ellipsis if it overflows.
Move some options position within “General” pane and “Edit” pane in preferences window.
Rename the main text input area in window from “View” to “Editor”.
Improve text finder:
Now, “Find All” action also highlights all matched strings in the editor, and thereby “Highlight” action is removed.
Change advanced find option setting from popup menu to popover.
On Yosemite and later, a visual feedback is shown when the search wrapped.
Keep selected range after “Replace All” with in-selection option.
Display total number of found in find panel on simple find actions.
Now, “Find All” and “Replace All” actions are able to process multiple selections.
Add Python syntax to the regular expression syntax options.
Revert “Use selection for Replace” action to allow using an empty string.
Update layout and style.
FIXES:
Fix cursor location after moving lines with empty selection.
Fix line-wrapping behavior when the line contains a long unbreakable word.
Fix an issue where the application crashed by an invalid find regular expression option combination.
Fix an issue where the application could crash just after starting dictation.
Fix an issue where keybinding setting could fail.
Fix an issue where the scroll bar style didn't change to light color on dark background theme.
Fix an issue where the character inspector didn't show up on Mavericks and earlier.
Fix an issue where split orientation setting wasn't applied.
Fix an issue where “Jump to Selection” action didn't jump to selection in editor if other text box is focused.
Fix an issue where some table cells didn't change their text color when selected.
Fix tiny memory leaks.

New in CotEditor 2.3.4 (Jan 13, 2016)

New in CotEditor 2.3.3 (Jan 10, 2016)

NEW FEATURES:
Add “Share” menu to File menu.
IMPROVEMENTS:
Now, you can force-disable window restoration from the last session if you hold Shift key while launch.
Now, the current line number is drawn in bold font, and always drawn in vertical text mode.
Select whole text wrapped with quotation marks by double-clicking one of the quotation marks if it is already syntax-highlighted.
Keep text selection after inserting color code from the color code panel.
Add jump to URL button to the style info in the syntax style editor.
Improve drawing of “Other” invisible characters.
Improve behavior on Replace/Replace All actions.
Improve text encoding detection to redress the tendency: a binary file was interpreted as ISO-2022-JP.
Revert style of popup menus in toolbar on Marvericks and earlier.
Update line number font.
Update default fonts.
Tweak preferences layout.
Tweak Chinese localization.
Improve general stability.
Add “description” field also to outline setting in syntax style editor.:
From this, update most of bundled syntax styles.
Improve “Input Character in Unicode Hex” panel:
Display proposed character info.
Allow also taking a 1 to 3 digits point code.
Avoid auto-closing panel after enter character.
Improve character inspector:
Display more comprehensible name for control characters (e.g. to NULL).
Display a alternate visible symbol in the zoomed character area for C0 control characters.
Improve installed syntax style list in preferences:
Add dot mark to style names in the list to represent the state if the style is customized.
Enable restoring modified syntax style directly from the list without opening the style editor.
FIXES:
Fix an issue where the application tended to crash by trying opening binary file.
Fix an issue where line breaks between paths of dropped files were missing.
Fix an issue where the application crashed when a single character that is a part of surrogate pair is inspected.
Fix an issue where snippet key bindings could not be customized on Mavericks and earlier.
Fix an issue where syntax highlight was not updated after reinterpreting encoding.
Fix an issue where panels could lost target document.
Fix layout of character popup on Mavericks and earlier.
Fix an issue where “Recolor All” action was always enabled even if syntax style is “None.”

New in CotEditor 2.3.2 (Dec 19, 2015)

New in CotEditor 2.3.1 (Nov 16, 2015)

New in CotEditor 2.3.0 (Nov 7, 2015)

New in CotEditor 2.3.0 Beta (Oct 26, 2015)

New in CotEditor 2.2.1 (Oct 20, 2015)

New in CotEditor 2.2.0 (Oct 5, 2015)

New Features:
CotEditor is now Sandboxed.
Hanging indentation that enables inserting extra indent to wrapped lines. You can change the behavior in Preferences > Edit.
New setting option for the behavior on document modification by external process (in General pane).
Share button in toolbar (Customize toolbar to use it).
Add new themes “Anura” and “Note”.
Line number view for vertical text orientation.
Print with vertical text orientation.
Save text orientation state to the file and restore it when the file is opened. For advanced users: In this feature, CotEditor saves an extended attribute which named com.coteditor.VerticalText to the file only when the editor's text orientation is vertical. You can even disable the feature running the command defaults write com.coteditor.CotEditor savesTextOrientation -bool NO in Terminal.
Add interpreter name list to the syntax style definition to determine syntax style from the shebang in the file content for in case when syntax style cannot be determined from the file name.
From this change, some of the bundled syntax styles are also updated.
Add new normalization form “NFKC Casefold” to the Unicode normalization action in the Utility menu. (Thanks to doraTeX!) It is also added to the AppleScript terms.
Add encoding: and coding: to the encoding declaration keywords which will be used on encoding auto-detection (interpreting priorities are: charset= > encoding= > @charset > encoding: > coding:).
Add German localization.
Additions/Changes:
Support OS X 10.11 El Capitan.
Deprecate the feature opening/saving files that user doesn't have the permission, due to Sandbox requirement.
Remove bundled cot command-line tool, due to the Mac App Store guidelines. To use cot command with CotEditor 2.2.0 and later, download the new command-line tool from http://coteditor.com/cot and install manually. You cannnot use the previous one with CotEditor 2.2.0.
Improve side inspector UI.
Improve syntax highlighting: Optimize general syntax highlighting performance (ca. 1.8x); Optimize syntax highlighting on file opening; Better coloring parsing while editing; Update all split editors while editing.
Move scripts folder location from ~/Library/Application Support/CotEditor/ScriptMenu/ to ~/Library/Application Scripts/com.coteditor.CotEditor/ due of the Sandbox requirement. Users need to migrate their script to the new folder manually, since CotEditor doesn't have the write permission to the new location.
Improve print document:
Update header/footer layout to conform to the standard system header/footer design; Add page setup options to the print panel; Print settings preset can be stored in the print panel.
Improve Color Code Editor: Add stylesheet keyword to color code type; Add stylesheet keyword color list to editor panel; Make editor panel resizable.
Now syntax style is automatically set to “XML” on file opening if no appropriate style can be found but the file content starts with a XML declaration.
Update “Swift” syntax style: Add new terms available in Swift 2.0.
Better file encoding handling on revert action.
Update word completion list setting in Edit pane in Preferences (The previous setting has been reset).
Set access-group com.coteditor.CotEditor.edit to CotEditor's script definition.
Change behavior to save com.apple.TextEncoding xattr on saving if the file had no content.
Improve window restoration: To restore also the last scroll position and cursor position; To restore also the last syntax style mode of unsaved documents.
Support “swipe to delete” for some tables in Preferences on El Capitan.
Improve contextual menu for theme/syntax style list on preferences.
Avoid beeping on typing an unmatched > even if brace highlighting turned on.
Improve saving error dialog to display more detailed error reason.
Optimize saving process.
Adjust highlight color for find panel.
Tweak message terms.
Remove sample scripts. You can get them online on Archives page.
Update documents.
Update build environment to OS X El Capitan + Xcode 7 (SDK 10.11).
Change source code license from the GNU General Public License version 2 to the Apache License version 2.0.
non-AppStore ver.: Disable auto-update feature. Since the Sparkle framework which is a software update framework we use doesn't support Sandboxed apps yet, the auto-update feature within CotEditor should be once disabled. The new behavior is: a notification window will be shown when a new release is available (as before), then you need to update CotEditor manually getting the new version from our web-site. Or, just migrate to the Mac App Store version.
non-AppStore ver.: Add option to check pre-release versions. New pre-releases are always subject of the update check no matter the user setting if the current running CotEditor is a pre-release version.
non-AppStore ver.: Update Sparkle framework to version 1.11.0.
Fixes:
Fix an issue where theme color was occasionally not applied to the preview in the print panel.
Fix an issue where application crashed when type a part of surrogate pair character.
Fix an issue where invisibles which are a suroggate pair occasionally did not display.
Fix an issue where the full path display in the document inspector did not update after the document file moved.
Fix an issue where the find panel could not find matched strings when the find string includes CR or CR/LF line endings.
Fix an issue where warning on Integration pane didn't disappear even after the problem resolved.
Fix an issue where application crashed by clicking header of empty table in syntax editor sheet.
Fix an issue where line numbers were not drawn completely on OS X 10.8 when scroll bars are set as always shown.
Fix an issue where the command-line tool could rarely not be installed from Integration pane.
Fix an issue where application could crash after when closing multiple split views.
Fix an issue where the toolbar button state of the text orientation was not updated on window restoration.
Fix an issue where some ligatured characters were drawn at a wrong position when the line height for composite font is fixed.
Fix an issue where unwanted invisible character mark were drawn when tab drawing is turned off and other invisibles drawing is turned on.
Add some missing localized strings in Japanese.
Improve general stability.
Misc:
First release in the Mac App Store.
A CotEditor plugin-script for Dash API documentation browser has been released at Dash CotEditor Plugin/GitHub.

New in CotEditor 2.2.0 RC 3 (Oct 1, 2015)

New in CotEditor 2.2.0 RC 2 (Oct 1, 2015)

New in CotEditor 2.2.0 RC (Oct 1, 2015)

New Features:
Hanging indentation that enables inserting extra indent to wrapped lines.
You can change the behavior in Preferences > Edit.
Add new normalization form “NFKC Casefold” to the Unicode normalization action in Utility menu (Thanks to doraTeX!)
It is also added to the AppleScript terms.
Add German localization.
Additions/Changes:
Change the location where cot command-line tool is bundled from CotEditor.app/Contents/MacOS/ to CotEditor.app/Contents/SharedSupport/bin/, due to Sandbox requirement.
Users who have already installed `cot` command need re-install it manually. You can re-install it running the command below on Terminal:
unlink /usr/local/bin/cot; ln -s /Applications/CotEditor.app/Contents/SharedSupport/bin/cot /usr/local/bin/cot
You may need to modify paths in this command depending on where you've installed CotEditor/cot.
Improve Color Code Editor: Add stylesheet keyword to color code type; Add stylesheet keyword color list to editor panel; Make editor panel resizable.
Now syntax style is automatically set to “XML” on file opening if no appropriate style can be found but the file content starts with a XML declaration.
Update word completion list setting in Edit pane in Preferences (The previous setting has been reset).
Support “swipe to delete” for some tables in Preferences on El Capitan.
Improve contexutal menu for theme list on preferences.
Adjust highlight color for find panel.
Tweak some message terms.
Update documents.
Update build environment to El Capitan + Xcode 7 (SDK 10.11).
non-AppStore ver.: Update Sparkle framework to version 1.11.0.
beta non-AppStore ver.: Change to not check pre-release versions on default.
New pre-releases are always subject of the update check no matter the user setting if the current running CotEditor is a pre-release version.
Fixes:
Fix an issue where the command-line tool could rarely not be installed from Integration pane.
Fix an issue where application could crash after when closing multiple split views.
Fix an issue where application crashed by clicking header of empty table in syntax editor sheet.
Fix an issue where warning on Integration pane didn't disappear even after the problem resolved.
Fix an issue where unwanted invisible character mark were drawn when tab drawing is turned off and other invisibles drawing is turned on.
Add some missing localized strings in Japanese.
El Capitan: Fix an issue where color code view did not display on El Capitan.
beta: Fix an issue where the strings that were inserted via script or tools could be styled wrong.
beta: ix an issue where no preferred extension was appended on the document save panel.
beta: Fix an issue where the bug report template was not syntax highlighted.
beta: Fix some trivial drawing issues on El Capitan.

New in CotEditor 2.2.0 Beta (Aug 21, 2015)

New in CotEditor 2.1.6 (Jul 18, 2015)

New in CotEditor 2.1.5 (Jul 15, 2015)

New in CotEditor 2.1.4 (Jul 13, 2015)

New in CotEditor 2.1.4 Beta 2 (May 4, 2015)

New in CotEditor 2.1.3 (Mar 26, 2015)

New in CotEditor 2.1.2 (Mar 10, 2015)

New in CotEditor 2.1.1 (Mar 2, 2015)

New in CotEditor 2.1.0 (Feb 19, 2015)

New Features:
Now your documents are automatically backuped while editing and will be resumed at the next session, even after force quitting.
This feature doesn't modify your actual files. You still need to perform “Save” manually to apply changes to your files.
cot command-line tool.
New AppleScript property tab width for document object.
Now, CotEditor script receives the absolute file path of the frontmost document as an argument if available.
Add “New CotEditor Document with Selection” and “Open File in CotEditor” Services.
Add syntax styles for “Erlang” and “Julia”.
Additions/Changes:
Drop support for OS X Lion.
Migrate document drawer to sidebar style.
Add “show document inspector” option to preferences.
Improve document information display.
Introduce brand-new find panel with more organized UI.
OniGmo is still be using for the regular expression engine as before.
Settings for find panel has been once reset. You can set them again from the gear button in the find panel.
Enable to change multiple checkboxes in syntax style editor at once.
Improve to display gear icon in menu bar while executing a script.
Improve auto-outdent behavior with } input.
Improve auto-tab-expand behavior with intent that tab characters and spaces are mixed.
Add hidden “Reveal in Finder” menu item to syntax style action menu in Preferences (visible with Option key).
Improve CotEditor Script to apply the result to the document that was frontmost when the script was launched.
Close Preferences window with esc key.
Character inspector popover becomes detachable (on Yosemite and later).
Update about Console Panel:
Rename “Script Error Panel” to “Console Panel.”
Change toolbar style.
Prefer using user custom syntax style if the file mapping conflicts with other bundled style.
Make key bindings for panel windows customizable.
Change to save com.apple.TextEncoding xattr only if the file already has the encoding xattr or it's a new document.
Move removed themes/styles to Trash instead delete them immediately.
Now, Utility actions perform with multiple selection.
Avoid showing not-writable alert on Resume again.
Delay timing to save text key bindings setting.
Localize document types.
Improve text rendering with non-opaque view.
Update “Markdown” syntax style:
Add horizontal rules to outline menu.
Tweak text view drawing performance.
Update Sparkle framework to version 1.9.0.
Fixes:
Fix an issue that the preferred file encoding for encoding detection could be set wrong after running file open panel.
Fix an issue that incompatible character markup positions were wrong by CR/LF line endings.
Fix duplication check in key bindings editor.
Fix “Restore Defaults” button enability on text key bindings edit sheet.
Fix possible crashes on input.
Fix an issue that application could crash after closing split view.
Fix an issue that application could crash after switching theme in preferences.
Fix an issue where tab width on printing didn't reflect user indent setting.
Fix an issue where tab width didn't update on font size change.
Fix an issue where the help button on Edit pane and Format pane didn't show correct help page.
Fix an issue that application couldn't open file that is not Unicode, has more than 4,096 characters and consists only of 2 byte characters.
Fix an issue that text font could occasionally change after pasting or inputting text from other application.
Fix an issue that number of selected lines displayed less than actual count if last selected lines are blank.
Fix an issue that Unicode character insertion was occasionally failed.
Fix an issue that syntax highlights were removed after perform Unhighlight.
Fix timing to display sheets on file open.
Fix an issue that selection of line endings menu and encoding menu in toolbar did not update on undo/redo.
Fix an issue that checkmark in line height menu was not displayed.
Fix an issue where some document icons were not applied under the specific environments.
Fix some missing localizations in simplified Chinese. (Thanks to Wei Wang!)
Fix an issue that an alert message was not localized.
And other trivial UI fixes and enhancements.

New in CotEditor 2.1.0 RC 2 (Feb 12, 2015)

New in CotEditor 2.1.0 RC 1 (Feb 12, 2015)

New in CotEditor 2.1.0 Beta 2 (Feb 10, 2015)

New in CotEditor 2.1.0 Beta (Jan 28, 2015)

HIGHLIGHTS ON COTEDITOR 2.1:
cot command-line tool:
The new cot command-line tool lets you open documents in CotEditor from the command line. You can install it from Integration pane in Preferences.
Brand-new Find & Replace panel:
The Find and Replace panel was totally re-designed with more modern and organized looking.
New document inspector view:
The legacy document information drawer was now migrated to a side panel style. This change allows you to see document information even on the full-screen mode.
Dropping support for OS X 10.7 Lion:
CotEditor now requires OS X Mountain Lion or higher.
WHAT'S NEW ON COTEDITOR 2.1Β:
New Features:
cot command-line tool.
New AppleScript property tab width for document object.
Now, CotEditor script receives the absolute file path of the frontmost document as an argument if available.
Add “New CotEditor Document with Selection” and “Open File in CotEditor” Services.
Add syntax styles for “Erlang” and “Julia”.
Additions/Changes:
Drop support for OS X Lion.
Enable to change multiple checkboxes in syntax style editor at once.
Improve to display gear icon in menu bar while executing a script.
Improve auto-outdent behavior with } input.
Improve auto-tab-expand behavior with intent that tab characters and spaces are mixed.
Add hidden “Reveal in Finder” menu item to syntax style action menu in Preferences (visible with Option key).
Improve CotEditor Script to apply the result to the document that was frontmost when the script was launched.
Close Preferences window with esc key.
Character inspector popover becomes detachable (on Yosemite and later).
Prefer using user custom syntax style if the file mapping conflicts with other bundled style.
Change to save com.apple.TextEncoding xattr only if the file already has the encoding xattr or it's a new document.
Move removed themes/styles to Trash instead delete them immediately.
Now, Utility actions perform with multiple selection.
Avoid showing not-writable alert on Resume again.
Delay timing to save text key bindings setting.
Localize document types.
Improve text rendering with non-opaque view.
Tweak text view drawing performance.
Update Sparkle framework to version 1.9.0
Update about Console Panel:
Rename “Script Error Panel” to “Console Panel.”
Change toolbar style.
Update “Markdown” syntax style:
Add horizontal rules to outline menu.
Migrate document drawer to sidebar style:
Add “show document inspector” option to preferences.
Improve document information display.
Introduce brand-new find panel with more organized UI:
OniGmo is still be using for the regular expression engine as before.
Settings for find panel has been once reset. You can set them again from the gear button in the find panel.
Fixes:
Fix an issue that the preferred file encoding for encoding detection could be set wrong after running file open panel.
Fix an issue that incompatible character markup positions were wrong by CR/LF line endings.
Fix duplication check in key bindings editor.
Fix “Restore Defaults” button enability on text key bindings edit sheet.
Fix possible crashes on input.
Fix an issue that application could crash after closing split view.
Fix an issue that application could crash after switching theme in preferences.
Fix an issue that application couldn't open file that is not Unicode, has more than 4,096 characters and consists only of 2 byte characters.
Fix an issue that text font could occasionally change after pasting or inputting text from other application.
Fix an issue that number of selected lines displayed less than actual count if last selected lines are blank.
Fix an issue that Unicode character insertion was occasionally failed.
Fix an issue that syntax highlights were removed after perform Unhighlight.
Fix timing to display sheets on file open.
Fix an issue that selection of line endings menu and encoding menu in toolbar did not update on undo/redo.
Fix an issue that checkmark in line height menu was not displayed.
Fix some missing localizations in simplified Chinese. (Thanks to Wei Wang!)
Fix an issue that an alert message was not localized.
And other trivial UI fixes and enhancements.

New in CotEditor 2.0.3 (Dec 15, 2014)

New in CotEditor 2.0.2 (Nov 27, 2014)

New in CotEditor 2.0.1 (Nov 27, 2014)

New Features:
Introduce new AppleScript commands comment out and uncomment for selection object.
Add “js“ extension to CotEditor script type. Hint: Use #!/usr/bin/osascript -l JavaScript for shebang to run script as Yosemite's JavaScript for Automation.
Add “Create Bug Report…” action to the Help menu.
Add syntax style for “BibTeX”.
Additions/Changes:
Display an alert if the opening file is larger than 100 MB.
Change default value for “Comment always from line head” option to enable.
Rename labels for line endings.
Update “Python” syntax style: Fix highlighting print command.
Update “Ruby” syntax style: Improve highlighting % literals.
Update “R” syntax style: Add file name .Rprofile to file mapping.
Update “JavaScript” syntax style: Highlight shebang as comment.
Update documents for scripting with AppleScript.
Update sample scripts.
Remove syntax style for “eRuby”.
Fixes:
Fix an issue that new documents couldn't occasionally be saved with an extension that is automatically added from syntax definition.
Fix an issue that the application could crash after closing split view.
Fix an issue that some objects couldn't be handled via JavaScript for Automation on Yosemite.
Fix an issue that syntax style validator didn't warn about keywords duplication that were newly added.
Fix an issue that syntax style mapping conflict tables were always blank.
Fix an issue that quoted texts and block comments at the end of document weren't highlighted.
Fix an issue that text kerning was too narrow with non-antialiasing text (thanks to tsawada2-san).
Fix an issue that text view scrolls to the opposite side when line number view is dragged.
Fix an issue that contents property of document property could’t be set via AppleScript.
Fix an issue that word selection didn't expand correctly under the specific conditions.
Fix an issue that current line highlight didn't update after font size change.
Fix an issue that navigation/status bars are shown for a moment on window creation even they are set as hidden.
Fix an issue that new added row in file drop setting occasionally disappear immediately.
Fix some Japanese localizations.

New in CotEditor 2.0.0 (Nov 17, 2014)

New Features:
Coloring theme feature.
Comment toggling feature.
Add “types”, “attributes” and “variables” to syntax highlighting colors.
Now, syntax style can be determined not only from file extension but also from file name.
From this, rename “Extensions” in syntax edit sheet to “File Mapping”.
Add metadata fields for syntax styles.
Append a correspondent extension to the file name on saving.
The top extension in the extension list in the syntax style definition will be used.
From this, setting for “Append “txt” on saving” was deprecated.
If you want to keep using “txt” as default extension, set “Plain Text” syntax style as default style in Preferences > Format.
Add “Toggle Text Orientation” icon to toolbar.
Add option to split views vertically.
Select lines via clicking/dragging line numbers.
Add “Select Line” command to “Edit” menu.
Add syntax styles for “AppleScript”, “C#”, “Go”, “Lisp”, “Lua”, “R”, “Rust”, “Scheme”, “SQL”, “SVG”, “Swift” and “Tcl”,.
Auto-complete feature (experimental implementation, turned off by default).
Additions/Changes:
Support OS X Yosemite.
Update application icon with Yosemite style.
Change the bundle identifier from com.aynimac.CotEditor to com.coteditor.CotEditor.
New default coloring scheme.
Improve performance drastically:
Extracting outline list on a background thread.
From this, non-response time till coloring indicator sheet has been shown reduced drastically.
Display message for outline extracting in the navigation bar until the first extracting ends.
Perform extracting syntax highlights on a background thread.
Cache results of syntax highlighting, and use them as long as document is not modified.
Improve cursor moving and file opening performance when the current line is highlighted.
Improve invisible chars drawing performance (4x faster).
Improve line number drawing performance (6x faster).
Improve text view scrolling on Mountain Lion and later.
For performance, change range to scan encoding declaration up to 2,000 characters from the head of the document.
Change syntax style file format from plist (XML) to YAML.
Legacy user styles will be migrated automatically on the first launch of CotEditor 2.0.
New user syntax style files are stored in ~/Library/Application Support/CotEditor/Syntaxes/. The old styles are kept in SyntaxColorings/. Since CotEditor 2.0 doesn’t use them any more, you can delete the direcotry if you want.
Now, IC (ignore case) can be set even RE (regular expression) is set in syntax style editing.
Change regular expression engine to extract outline from OniGmo (OgreKit) to ICU (NSRegularExpression).
Attention!: You may need to update the outline extracting definitions in your custom syntax styles.
Remove $& definition that represents whole matched string (Use $0 instead).
Change tab width to 4 characters in outline menu.
Improve coloring indicator:
Improve to perform cancel button correctly.
On Mavericks and later, you can work with other documents while coloring dialog is shown.
Display current task as message in sheet.
Change not to reset syntax style to “None” when user cancels coloring.
Change not to remove current coloring when user cancels coloring.
Cancel with ESC key.
Apply theme color to the line number view.
On Mountain Lion and later, text view gets no drop-shadow by texts on semi-transparent.
Define document types for CotEditor in more details and also add document icons for each.
Scroll line by line with an arrow key.
Adjust indent automatically on return just after { and } if Auto-Indent is on. (thanks to Naotaka-san).
Rename “Spelling” menu item to “Spelling and Grammer” in Edit menu, and also add “Substitutions” and “Transformations” items
From this, remove “Uppercase”, “Lowercase” and “Capitalize” in “Utility” menu.
Update all of bundled syntax styles.
Update “CSS” syntax style:
Support CSS level 3.
Update “Perl” syntax style:
Add some keywords.
Add =pod and =cut to comment coloring.
Add “pm” to extensions.
Update “JSON” syntax style:
Add “cottheme” to extensions.
Update “LaTeX” syntax style:
Add “cls” and “sty” to extensions.
Update outline menu style.
Update “YAML” syntax style:
Support YAML 1.2.
Improve outline extracting rules.
Some fixes.
Update “Ruby” syntax style:
Support % notation.
Add special variables.
Improve number literals.
Support here document.
and some more fixes.
Update “Java” syntax style:
Improve number literals.
Support annotation.
and some more fixes.
Update “JavaScript” syntax style:
Completely rewrite.
Update “Haskell” syntax style:
Improve number literals.
Add escape chars.
Update “Apache” syntax style:
Indent outline items.
Separate “DTD” (Document Type Declaration) syntax style from “XML”.
From this, coloring performance with “XML” syntax style was improved.
Updates about scripting support:
Migrate AppleScript API definition file to sdef format.
Rename unicode normalization command to normalize unicode.
Update internal code for range property of text selection objects.
From this, your compiled AppleScripts (.scpt) that contain selection handling need to be updated manually. See “Scripting with AppleScript” document in Help menu for details.
Update documents about scripting with AppleScript.
Change not to include menu items that manage script menu in context menu.
Count characters by composed character sequence in the status bar and the info drawer.
The previous count was actually the length of string in UTF-16 that is internal string expression on OS X (for example, a surrogate pair is counted previously as 2 and now as 1).
Rename previous “Char Count” to “Char Length” and add another “Char Count” with the new count method for status bar items.
Avoid the move to previous outline item button to select the first “” item.
Change key to display hidden menu items in “File” menu to “Option”.
Add . and : to word separators that are used for selecting a word with a double click.
Improve messages on character info inspector with surrogate pairs and variation selectors. (thanks to doraTeX-san)
Disable alert asking for save when blank & unsaved document will be closed. (thanks to Naotaka-san)
Brush up toolbar icons.
Now, font size of line numbers follows editor font size.
Draw page guide in text color.
Improve syntax editor sheet so as to edit documents even the sheet is shown. (on Mavericks and later)
Tweak result messages by syntax style validator and partially localized.
Improve application icon so as not to react with dropped folders.
Improve cancellation behavior of word completion.
Rename “Inspect Glyph” to “Inspect Character”.
Delay timing to store user’s menu key bindings.
The user setting for menu key bindings on CotEditor 1.x will be reset on the first launch of v2.0.
Improve key bindings edit sheets.
Change line hight value to line height based, that includes the hight of the line itself.
Change default line hight value to 1.3.
Add thousands separators to values in document info.
Change date format in document info drawer.
Tweak status bar design.
Add back quotes to quotation marks which are accommodated when color comments.
Change Go To panel to sheet.
Add animation when toggling visibility of the navigation bar and the status bar.
Fix used font for invisible characters.
Update some of alternative characters for full-width space char.
Improve appearance of the encoding list edit sheet.
Improve window size setting fields in preferences to move fields with tab key.
Tweak some texts in UI.
Deprecate “Drag selected text immediately” setting.
Remove the output type keyword Pasteboard puts for CotEditor script, that was deprecated on CotEditor 0.7.2 and had remained for backwards compatibility.
Add hidden setting key layoutTextVertical (boolean) to set text orientation vertical as default.
Deprecate font settings for navigation bar and line number view which are hidden settings.
Move version history from rich text format to one of the Help contents.
Update documents.
Update Sparkle framework to 1.8.0.
Update build environment to OS X Yosemite + Xcode 6.1 (SDK 10.10).
And more internal changes.
Fixes:
Fix an issue that “Share find strings with other applications” option didn’t work.
Fix an issue that “Open a new document when CotEditor becomes active” option didn’t work correctly.
Fix an issue that the encoding select in file open panel was ignored.
Fix an issue that comments weren’t highlighted correctly if another comment delimiter is contained in string that is enclosed in quotes before the comment delimiter.
Fix an issue that variation selectors, kind of invisible characters, disappeared occasionally.
Fix help buttons on preferences panes.
Fix an issue that encoding selection in toolbar was reset after changing of encoding list order.
Fix over-wrapped text in the status bar to truncate with “…”.
Fix an issue that unfocused windows performed also re-coloring after “Replace All”.
Fix an issue that page guide was occasionally drawn at wrong place if fallback font is used.
Fix to highlight current line only in focused view of split views.
Fix an issue that text lines vibrated during moving caret if text orientation is vertical and line hight is fixed.
Fix an issue that line numbers in unfocused views were not updated.
Fix an issue that lately added toolbar icons didn’t represent the state at the moment.
Fix an issue that an error was output in console if blank area of incompatible chars table was clicked.
Fix an issue that editors didn’t change to transparent if the opacity setting in preferences window was changed from 100%.
Fix an issue that changes in custom line height panel wasn’t applied immediately.
Fix an issue that “Same as Document” selection for invisible chars in print panel didn’t work correctly.
Fix an issue that line count got one more extra if selection contains return at the end.
Fix an issue that range property of text selection objects was displayed as wrong character range on AppleScript Editor.
Fix some sample scripts which didn’t run correctly.
Fix an issue that some settings did not display in Preferences on OS X Lion.
Fix an issue that CotEditor could crash after replacement on specific conditions.
Avoid horizontal scrollers on key bindings edit sheets.
Misc.:
Twitter account for CotEditor was created. Follow @CotEditor to get our latest news.
Web page address was changed to coteditor.com.
You can find additional syntax styles to install on GitHub Wiki.

New in CotEditor 1.5.4 (Jun 30, 2014)

New in CotEditor 1.5.3 (May 21, 2014)

New in CotEditor 1.5.2 (May 12, 2014)

New in CotEditor 1.5.1 (May 9, 2014)

New in CotEditor 1.5 (May 9, 2014)

New Features:
“Inspect Glyph” feature:
Popover information of the selected character, if Cmd + Option + I is pressed or “Inspect Glyph” menu item in “Edit” menu is selected when exactly a single character is selected.
New color code panel:
Support 3-digit Hex, CSS’s rgb(), rgba(), hsl() and hsla().
Fix an issue that the color selected in the color panel was applied also to texts in text view.
Add “Input Char in Unicode Hex” feature to “Edit” menu.
Informations to display in status bar become selectable.
Add word count and file size to status bar info choices.
Add word count, file size and byte size to info drawer.
Tab format becomes settable via “Format” menu and toolbar to apply only to the current document.
On Auto-Indent mode, indent become automatically deeper when return key is pressed exactly between { and } or just after : character.
Add new “CoffeeScript” 1, “Dart”, “Diff”, “INI” 1, “JSON”, “Makefile”, “reStructuredText” 1, “Textile” 1 and “YAML” syntax style definitions.
Now, sscript/folder whose name begins with underscore (_) are not displayed in script menu.
[experimental] Add “Use Vertical Orientation” action to “Format” menu (Line numbers are always disabled while vertical orientation mode).
Additions/Changes:
Add “Western (ASCII)” and “Chinese (GB 18030)” to encoding list.
Brush-up terms on UI.
Update “HTML” syntax coloring definition.
Support HTML5 and HTML5.1
Better coloring.
Update “Perl” syntax coloring definition.
Color numbers and variables.
Add some keywords.
Improve comments coloring.
Add “Speech” to “Edit” menu.
Add “Syntax Style only” choice to completion list setting.
Add setting for smart quotes/dashes to preferences.
Regard numbers and underscore _ as string is continuing in non-regex keywords on syntax coloring.
Force disable smart quotes/dashes expect the document view.
Change the default order of the encodings detection priority, and now “UTF-8” comes to the first position.
You should perform “Set to Factory Default” to apply it. if you update CotEditor from previous version.
Updates about window opaque:
Remove the feature to make whole the window semi-transparent, and now opacity setting is applied always only to the view.
Now, line number view follows the text view’s opacity.
Now, opacity value need not be multiple of 5%
Fix term “transparency” to “opacity”.
Change “Apply to all Windows” button to “Set as Default”.
Update guide image for view opacity slider in preferences.
Fix window’s drop-shadow whose text view is full-opaque.
Updates about window open behavior:
Store last window’s position and locate new window to the place.
Remove the feature that unedited blank window closes automatically when another document is going to open.
Updates about print:
Implement print preview on print panel.
Apply the document name to the print job.
Add “Syntax Name” to the header/footer information choices.
Remove hyphens next to page number.
Adjust print panel layout.
Toggle menu item names occasionally like “Show” / “Hide”, instead displaying checkmark.
Change syntax styles management method.
Don’t to copy bundled styles to user’s “Application Support” area on launch.
From this, bundled syntax styles follow updates after CotEditor 1.5 as long as the styles are not customized.
This is not applied to the syntax styles that were copied previous. To apply it to them, perform “Set to Factory Defaults” on style editing sheet of each bundled syntax style in Preferences > Format pane > Installed styles.
for advanced users: “~/Application Support/CotEditor/SyntaxColorings (old)” will be created on the first launch of CotEditor 1.5, if you updated it from the previous version. This folder is just a backup data for this switching. you can generally remove it if you want.
Handle files Sandbox level safety on style import/export.
Updates about Preferences window:
More compact window.
New grouping.
Remove “Syntax” pane and move its settings to “Format” pane and “Appearance” pane.
Create a new “Edit” pane extracting settings about editing from “General” pane and “Format” pane.
Other several setting moves.
Use More OS X-friendly terms for labels.
Apply selected font style to the font fields.
Use selected pane name for the preferences window title.
New syntax style management UI.
Update syntax style editing sheet.
Change mode switching from popup button to list.
Now, multiple lines can be selected and removed at once.
Validate new syntax name immediately on editing and show an error message if it isn’t valid.
Improve UI of the extension conflicts sheet.
Add stepper next to number field.
Updates about AppleScript:
Remove transparency and alpha only textView properties.
Add view opacity property to window object.
Remove selection object direct under the Application object.
Updates about saving position of the script samples and documents:
Now, documents for CotEditor scripting can be found in “Help” menu.
Now, sample scripts will be copied only on the first CotEditor launch.
Add hidden “Copy Sample to Scripts Folder” menu item that will be appeared only when option key is pressed.
Remove unimportant settings.
Remove setting about file Type/Creator that are used until OS X 10.5 to determine document type on system.
Remove setting about wrapped mark in the line number view and now wrapped marks are always shown.
Remove the coloring option setting “Include Input Method chars” and now they are always included.
Updates about script error panel:
Implement text search in error messages.
Increase text size and insert a blank line between error messages.
Add information about number of selected lines to status bar and information drawer.
Support surrogate pair on Unicode display in information drawer.
Make matching brace highlight more noticeable.
Add “Report Bug…” menu item to “Help” menu.
Use light scroller style when background color is dark.
Change line/character selection on Go To panel from radio buttons to popup menu.
Improve inspector drawer layout.
Now line number view updates while window resizing.
Improve syntax coloring on text inputing.
Migrate memory management to ARC (Automatic Reference Counting).
Optimize processes on application launch.
Update Sparkle framework to version 1.6.0:
Add Japanese localization.
Fix “Automatically download and install updates in the future.” checkbox.
Update OgreKit framework to version 2.1.6.
Now find panel is displayed always on current desktop space.
Disable automatic substitutions in find panel.
A huge bunch of code and document changes.
Many code and document changing.
Fixes:
Fix an issue that all print page number becomes “-1-”.
Fix an issue that check mark on line endings popup menu in toolbar was disappear.
Fix an issue that re-coloring didn’t proceed after the text replacement.
Fix an issue that the close command via AppleScript was ignored.
Fix an issue that unwanted window objects were visible and could be handled via AppleScript.
Fix an issue that ^ (beginning of a line) on AppleScript’s search/replacement was not recognized when the document’s line endings are set to CR.
Fix an issue that visual tab width didn’t follow new font when font is temporary changed via font panel.
Fix an issue that strings between quotes/dashes were not colored when comment coloring definition is not contained in the syntax coloring definition.
Fix an issue that invalid style name was accepted and the saving was failed on syntax style editing under the specific conditions.
Fix an issue that syntax style file override another existing one without alert on syntax style editing under the specific conditions.
Fix an issue that application freeze when one of the installed syntax styles contains an extension definition with the empty string.
Fix an issue that key-bindings contain back-slash didn’t work under the Japanese locale.
Fix an issue that encoding names in the encoding list on the preferences was editable.
Fix an issue that document saving is failed when the document that is set to “Non-lossy ASCII” contains non-ASCII characters.
Fix an issue that application didn’t terminate on quite even “Don’t Save and Close” button was selected when a document whose Finder lock couldn’t be unlocked exists.
Fix an issue that error message is output to console when completion list is called while the document is empty.
Fix PHP code on the application icon.

New in CotEditor 1.4.1 (Mar 22, 2014)

New in CotEditor 1.4 (Mar 19, 2014)

New in CotEditor 1.2 (May 25, 2011)

New in CotEditor 0.9.6 (Feb 23, 2009)