What's new in Gifsicle 1.88
Jul 10, 2015
- Fix bug where long comments were read incorrectly. Reported by kazarny.
- Add --no-ignore-errors option.
New in Gifsicle 1.87 (Dec 10, 2014)
- Always optimize as if the background is transparent. This fixes some rare bugs reported by Lars Dieckow.
- Fix --crop issue with must-be-preserved frames that are out of the crop window.
New in Gifsicle 1.86 (Oct 15, 2014)
- Further fix --rotate + --crop.
New in Gifsicle 1.85 (Oct 15, 2014)
- Greatly improve optimization time for images with many colors.
- Add --no-extensions (with the s) and document those options more.
- Fix bug in interaction of --resize and --rotate reported by Michał Ziemba.
New in Gifsicle 1.84 (Jul 5, 2014)
- Correct optimizer bug that affected GIFs with 65535 or more total colors. Reported by Jernej Simončič.
New in Gifsicle 1.83 (Apr 25, 2014)
- Correct bug in custom gamma values reported by Kornel Lesiński.
New in Gifsicle 1.82 (Mar 28, 2014)
- Correct bug in ‘mix’ sampling method reported by Bryan Stillwell.
New in Gifsicle 1.81 (Mar 25, 2014)
- Correct bug in ‘mix’ sampling method reported by Bryan Stillwell.
New in Gifsicle 1.80 (Mar 19, 2014)
- Bug fixes and improved error messages.
New in Gifsicle 1.79 (Mar 18, 2014)
- Major improvements in image scaling. Work sponsored by Tumblr via Mike Hurwitz.
- Add new resize sampling methods ‘mix’, ‘box’, ‘catrom’, ‘mitchell’, ‘lanczos2’, and ‘lanczos3’, selectable by ‘--resize-method’. The ‘catrom’ filter often gives good results; the slightly faster ‘mix’ method (a bilinear interpolator) is now the default. These new sampling methods consider all of the image’s input colors when shrinking the image, producing better, less noisy output for most images.
- Add ‘--resize-colors’, which allows Gifsicle to enlarge the palette when resizing images. This is particularly important when shrinking images with small colormaps---e.g., shrinking a black-and-white image should probably introduce shades of gray.
- Support extensions such as XMP4 in which extension packet boundaries matter. Reported by ‘ata4’.
- Many bug fixes, especially to cropping. Thanks to Tumblr and to Bryan Stillwell, Tal Lev-Ami, "Marco," and others.
New in Gifsicle 1.78 (Dec 9, 2013)
- Correct an optimization bug introduced in 1.76. Reported by Tom Roostan.
New in Gifsicle 1.77 (Nov 28, 2013)
- Major improvements to color selection (important when reducing colormap size). Use gamma-corrected colors in selection and dithering; this makes image quality much better. Also, when reducing colors with dithering, prefer to select colors that dithering can’t approximate.
- Add ordered dithering modes, which avoid animation artifacts. The default ordered dithering mode (‘--dither=ordered‘) is a novel mode that combines some of the visual advantages of error diffusion with the artifact avoidance of ordered dithering.
- Add halftone dithering (‘--dither=halftone‘).
- gifview: Improved cache memory management for better animations. Collect memory for old frames based on an explicit --memory-limit (default 40MB).
- gifview: Add ‘--fallback-delay‘ option, to specify a fallback delay for frames with delay 0. Thanks to Sung Pae.
New in Gifsicle 1.76 (Nov 21, 2013)
- Fix ‘-O2‘ crashes introduced with ‘--resize‘ improvements. Reported by Bryan Stillwell.
New in Gifsicle 1.75 (Nov 21, 2013)
- Improve ‘--careful‘ (fewer crashes). Reported by Bryan Stillwell.
- Improve ‘-O2‘: again, don’t refuse to optimize images with local color tables. Reported by Bryan Stillwell.
- Greatly improve ‘--dither‘ speed.
New in Gifsicle 1.74 (Nov 18, 2013)
- Improve ‘--resize‘ behavior: avoid animation artifacts due to different rounding decisions. Also speed it up. Reported by Bryan Stillwell.
New in Gifsicle 1.73 (Nov 15, 2013)
- Fix bug where ‘-O2‘ would refuse to optimize some images with local color tables, claiming that "more than 256 colors were required". What was really required is previous disposal. Reported by Bryan Stillwell.
New in Gifsicle 1.72 (Nov 12, 2013)
- Fix crash bugs on some combinations of ‘--crop‘ and ‘--resize‘ (prevalent on images whose first frame didn’t cover the whole logical screen). Reported by Bryan Stillwell.
New in Gifsicle 1.71 (Oct 4, 2013)
- Avoid rounding errors in ‘--resize‘. Reported by Paul Kane.
- Report error when ‘-I‘ is combined with ‘-b‘. Reported by Frank Dana.
- Frame selections also apply in batch mode. Reported by LOU Yu Hong Leo.
New in Gifsicle 1.64 (Dec 15, 2011)
- Add --resize-fit options.
New in Gifsicle 1.63 (Oct 18, 2011)
- Avoid crash on frame selections where frames are repeated.