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Clojure Changelog

What's new in Clojure 1.7.0

Jul 6, 2015
  • Error messages:
  • CLJ-1261 Invalid defrecord results in exception attributed to consuming ns instead of defrecord ns
  • CLJ-1297 Give more specific hint if namespace with "-" not found to check file uses "_"
  • Documentation strings:
  • CLJ-1417 clojure.java.io/input-stream has incorrect docstring
  • CLJ-1357 Fix typo in gen-class doc-string
  • CLJ-1479 Fix typo in filterv example
  • CLJ-1480 Fix typo in defmulti docstring
  • CLJ-1477 Fix typo in deftype docstring
  • CLJ-1478 Fix typo in clojure.main usage
  • CLJ-1738 Clarify usage on Java iterators in seq and iterator-seq
  • Performance:
  • CLJ-1430 Improve performance of partial with more unrolling
  • CLJ-1384 clojure.core/set should use transients for better performance
  • CLJ-1429 Cache unknown multimethod value default dispatch
  • CLJ-1529 Reduce compile times by avoiding unnecessary calls to Class.forName()
  • CLJ-1546 vec is now faster on almost all inputs
  • CLJ-1618 set is now faster on almost all inputs
  • CLJ-1695 Fixed reflection call in variadic vector-of constructor
  • Other enhancements:
  • CLJ-1191 Improve apropos to show some indication of namespace of symbols found
  • CLJ-1378 Hints don't work with #() form of function
  • CLJ-1498 Removes owner-thread check from transients - this check was preventing some valid usage of transients in core.async where a transient is created on one thread and then used again in another pooled thread (while still maintaining thread isolation).
  • CLJ-803 Extracted IAtom interface implemented by Atom.
  • CLJ-1315 Don't initialize classes when importing them
  • CLJ-1330 Class name clash between top-level functions and defn'ed ones
  • CLJ-1349 Update to latest test.generative and add dependency on test.check
  • CLJ-1546 vec now works with things that only implement Iterable or IReduceInit
  • CLJ-1618 set now works with things that only implement Iterable or IReduceInit
  • CLJ-1633 PersistentList/creator doesn't handle ArraySeqs correctly
  • CLJ-1589 Clean up unused paths in InternalReduce
  • CLJ-1677 Add setLineNumber() to LineNumberingPushbackReader
  • CLJ-1667 Change test to avoid using hard-coded socket port
  • CLJ-1683 Change reduce tests to better catch reduce without init bugs
  • Bug Fixes:
  • CLJ-1362 Reduce broken on some primitive vectors
  • CLJ-1388 Equality bug on records created with nested calls to map->record
  • CLJ-1274 Unable to set compiler options via system properties except for AOT compilation
  • CLJ-1241 NPE when AOTing overrided clojure.core functions
  • CLJ-1185 reductions does not check for reduced value
  • CLJ-1039 Using def with metadata {:type :anything} throws ClassCastException during printing
  • CLJ-887 Error when calling primitive functions with destructuring in the arg vector
  • CLJ-823 Piping seque into seque can deadlock
  • CLJ-738

New in Clojure 1.7.0 Alpha 4 (Nov 26, 2014)

  • NEW AND IMPROVED FEATURES:
  • Transducers:
  • Transducers is a new way to decouple algorithmic transformations from their application in different contexts. Transducers are functions that transform reducing functions to build up a "recipe" for transformation.
  • Keyword and Symbol Construction:
  • In response to issues raised in CLJ-1439, several changes have been made in symbol and keyword construction.
  • update - like update-in for first level:
  • update is a new function that is like update-in specifically for first-level keys: (update m k f args...)
  • ENHANCEMENTS:
  • Error messages:
  • CLJ-1261 Invalid defrecord results in exception attributed to consuming ns instead of defrecord ns
  • CLJ-1169 Report line,column, and source in defmacro errors
  • CLJ-1297 Give more specific hint if namespace with "-" not found to check file uses "_"
  • Documentation strings:
  • CLJ-1417 clojure.java.io/input-stream has incorrect docstring
  • CLJ-1357 Fix typo in gen-class doc-string
  • CLJ-1479 Fix typo in filterv example
  • CLJ-1480 Fix typo in defmulti docstring
  • CLJ-1477 Fix typo in deftype docstring
  • CLJ-1478 Fix typo in clojure.main usage
  • Performance:
  • CLJ-1430 Improve performance of partial with more unrolling
  • CLJ-1384 clojure.core/set should use transients for better performance
  • CLJ-1429 Cache unknown multimethod value default dispatch
  • CLJ-1529 Reduce compile times by avoiding unnecessary calls to Class.forName()
  • Other enhancements:
  • CLJ-1191 Improve apropos to show some indication of namespace of symbols found
  • CLJ-1378 Hints don't work with #() form of function
  • CLJ-1498 Removes owner-thread check from transients - this check was preventing some valid usage of transients in core.async where a transient is created on one thread and then used again in another pooled thread (while still maintaining thread isolation).
  • CLJ-803 Extracted IAtom interface implemented by Atom.
  • CLJ-1315 Don't initialize classes when importing them
  • CLJ-1330 Class name clash between top-level functions and defn'ed ones
  • CLJ-1349 Update to latest test.generative and add dependency on test.check
  • BUG FIXES:
  • CLJ-1362 Reduce broken on some primitive vectors
  • CLJ-1388 Equality bug on records created with nested calls to map->record
  • CLJ-1274 Unable to set compiler options via system properties except for AOT compilation
  • CLJ-1241 NPE when AOTing overrided clojure.core functions
  • CLJ-1185 reductions does not check for reduced value
  • CLJ-1039 Using def with metadata {:type :anything} throws ClassCastException during printing
  • CLJ-887 Error when calling primitive functions with destructuring in the arg vector
  • CLJ-823 Piping seque into seque can deadlock
  • CLJ-738

New in Clojure 1.6.0 (Aug 7, 2014)

  • COMPATIBILITY AND DEPENDENCIES:
  • JDK Version Update:
  • Clojure now builds with Java SE 1.6 and emits bytecode requiring Java SE 1.6 instead of Java SE 1.5. [CLJ-1268]
  • ASM Library Update:
  • The embedded version of the ASM bytecode library has been upgraded to ASM 4.1. [CLJ-713]
  • Promoted "Alpha" Features:
  • Watches - add-watch, remove-watch
  • Transients - transient, persistent!, conj!, assoc!, dissoc!, pop!, disj!
  • Exception data - ex-info, ex-data
  • Promises - promise, deliver
  • Records - defrecord
  • Types - deftype
  • Pretty-print tables - print-table
  • NEW AND IMPROVED FEATURES:
  • Java API:
  • The clojure.java.api package provides a minimal interface to bootstrap Clojure access from other JVM languages. It does this by providing: 1. The ability to use Clojure's namespaces to locate an arbitrary var, returning the var's clojure.lang.IFn interface. 2. A convenience method read for reading data using Clojure's edn reader.
  • Map destructuring extended to support namespaced keys:
  • In the past, map destructuring with :keys and :syms would not work with maps containing namespaced keys or symbols. The :keys and :syms forms have been updated to allow them to match namespaced keys and bind to a local variable based on the name.
  • New "some" operations:
  • Many conditional functions rely on logical truth (where "falsey" values are nil or false). Sometimes it is useful to have functions that rely on "not nilness" instead.
  • Hashing:
  • Clojure 1.6 provides new hashing algorithms for primitives and collections, accessible via IHashEq/hasheq (in Java) or the clojure.core/hash function (in Clojure). In general, these changes should be transparent to users, except hash codes used inside hashed collections like maps and sets will have better properties.
  • bitops:
  • A new unsigned-bit-shift-right (Java's >>>) has been added to the core library. The shift distance is truncated to the least 6 bits (per the Java specification for long >>>).
  • clojure.test:
  • Added a new clojure.test/test-vars function that takes a list of vars, groups them by namespace, and runs them with their fixtures.
  • ENHANCEMENTS:
  • Printing:
  • CLJ-908 Print metadata for functions when print-meta is true and remove errant space at beginning.
  • CLJ-937 pprint cl-format now supports E, F, and G formats for ratios.
  • Error messages:
  • CLJ-1248 Include type information in reflection warning messages
  • CLJ-1099 If non-seq passed where seq is needed, error message now is an ExceptionInfo with the instance value, retrievable via ex-data.
  • CLJ-1083 Fix error message reporting for "munged" function names (like a->b).
  • CLJ-1056 Handle more cases and improve error message for errors in defprotocol definitions.
  • CLJ-1102 Better handling of exceptions with empty stack traces.
  • CLJ-939 Exceptions thrown in the top level ns form are reported without file or line number.
  • Documentation strings:
  • CLJ-1164 Fix typos in clojure.instant/validated and other internal instant functions.
  • CLJ-1143 Correct doc string for ns macro.
  • CLJ-196 Clarify value of file is undefined in the REPL.
  • CLJ-1228 Fix a number of spelling errors in namespace and doc strings.
  • CLJ-835 Update defmulti doc to clarify expectations for hierarchy argument.
  • CLJ-1304 Fix minor typos in documentation and comments
  • CLJ-1302 Mention that keys and vals order are consistent with seq order
  • Performance:
  • CLJ-858 Improve speed of STM by removing System.currentTimeMillis.
  • CLJ-669 clojure.java.io/do-copy: use java.nio for Files
  • commit Reduce overhead of protocol callsites by removing unneeded generated cache fields.
  • Other enhancements:
  • CLJ-908 Make default-data-reader-fn set!-able in REPL, similar to data-readers.
  • CLJ-783 Make clojure.inspector/inspect-tree work on sets.
  • CLJ-896 Make browse-url aware of xdg-open.
  • CLJ-1160 Fix clojure.core.reducers/mapcat does not stop on reduced? values.
  • CLJ-1121 -> and ->> have been rewritten to work with a broader set of macros.
  • CLJ-1105 clojure.walk now supports records.
  • CLJ-949 Removed all unnecessary cases of sneakyThrow.
  • CLJ-1238 Allow EdnReader to read foo// (matches LispReader behavior).
  • CLJ-1264 Remove uses of _ as a var in the Java code (causes warning in Java 8).
  • CLJ-394 Add record? predicate.
  • CLJ-1200 ArraySeq dead code cleanup, ArraySeq_short support added.
  • CLJ-1331 Primitive vectors should implement hasheq and use new hash algorithm
  • CLJ-1354 Make APersistentVector.SubVector public so other collections can access
  • CLJ-1353 Make awt run headless during the build process
  • BUG FIXES:
  • CLJ-1018 Make range consistently return infinite sequence of start with a step of 0.
  • CLJ-863 Make interleave return () on 0 args and identity on 1 args.
  • CLJ-1072 Update internal usages of the old metadata reader syntax to new syntax.
  • CLJ-1193 Make bigint and biginteger functions work on double values outside long range.
  • CLJ-1154 Make Compile.java flush but not close stdout so errors can be reported.
  • CLJ-1161 Remove bad version.properties from sources jar.
  • CLJ-1175 Fix invalid behavior of Delay/deref if an exception is thrown - exception will now be rethrown on subsequent calls and not enter a corrupted state.
  • CLJ-1171 Fix several issues with instance? to make it consistent when used with apply.
  • CLJ-1202 Protocol fns with dashes may get incorrectly compiled into field accesses.
  • CLJ-850 Add check to emit invokePrim with return type of double or long if type-hinted.
  • CLJ-1177 clojure.java.io URL to File coercion corrupts path containing UTF-8 characters.
  • CLJ-1234 Accept whitespace in Record and Type reader forms (similar to data literals).
  • CLJ-1233 Allow ** as a valid symbol name without triggering dynamic warnings.
  • CLJ-1246 Add support to clojure.reflect for classes with annotations.
  • CLJ-1184 Evaling #{do ...} or [do ...] is treated as do special form.
  • CLJ-1090 Indirect function calls through Var instances fail to clear locals.
  • CLJ-1076 pprint tests fail on Windows, expecting \n.
  • CLJ-766 Make into-array work consistently with short-array and byte-array on bigger types.
  • CLJ-1285 Data structure invariants are violated after persistent operations when collision node created by transients.
  • CLJ-1222 Multiplication overflow issues around Long/MIN_VALUE
  • CLJ-1118 Inconsistent numeric comparison semantics between BigDecimals and other numerics
  • CLJ-1125 Clojure can leak memory in a servlet container when using dynamic bindings or STM transactions.
  • CLJ-1082 Subvecs of primitve vectors cannot be reduced
  • CLJ-1301 Case expressions use a mixture of hashCode and hasheq, potentially leading to missed case matches when these differ.
  • CLJ-983 proxy-super does not restore original binding if call throws exception
  • CLJ-1176 clojure.repl/source errors when read-eval bound to :unknown
  • CLJ-935 clojure.string/trim uses different definition of whitespace than triml and trimr
  • CLJ-1058 StackOverflowError on exception in reducef for PersistentHashMap fold
  • CLJ-1328 Fix some tests in the Clojure test suite to make their names unique and independent of hashing order
  • CLJ-1339 Empty primitive vectors throw NPE on .equals with non-vector sequential types
  • CLJ-1363 Field access via .- in reflective case does not work
  • CLJ-944 Compiler gives constant collections types which mismatch their runtime values
  • CLJ-1387 reduce-kv on large hash maps ignores reduced result

New in Clojure 1.5.1 (Mar 19, 2013)

  • Fix for leak caused by ddc65a96fdb1163b