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Latest upstream release: 2.5 Current version in Fedora Rawhide: 2.4.3 URL: http://ftp.gnu.org/gnu/bison/ Please consult the package updates policy before you issue an update to a stable branch: https://fedoraproject.org/wiki/Updates_Policy More information about the service that created this bug can be found at: https://fedoraproject.org/wiki/Upstream_release_monitoring
Some info on the new release: Bison version 2.5 is now available. Relative to 2.4.3, this version contains many bug fixes and many exciting new features that need more user feedback. Some of the most notable features are: 1. Support for dashes in grammar symbol names. 2. Named references, such as $sym instead of $1, in semantic actions. 3. IELR(1) and canonical LR(1) parser tables. 4. LAC (Lookahead Correction), which improves syntax error handling. 5. %error-verbose syntax error message fixes, mostly from LAC. LALR(1) parser tables and non-LAC parsers are still the default. See NEWS below for further details. Here are the compressed sources: ftp://ftp.gnu.org/gnu/bison/bison-2.5.tar.gz (2.6MB) ftp://ftp.gnu.org/gnu/bison/bison-2.5.tar.bz2 (2.0MB) Here are the GPG detached signatures[*]: ftp://ftp.gnu.org/gnu/bison/bison-2.5.tar.gz.sig ftp://ftp.gnu.org/gnu/bison/bison-2.5.tar.bz2.sig Note this new release requires a pretty new m4, and with good reasons: http://lists.gnu.org/archive/html/autoconf-patches/2011-03/msg00009.html Running ./configure M4=/your/m4 will allow /your/m4 to be used regardless of what m4 it is, so this should give distros a way out if they don't want to upgrade m4 and don't mind risking the bugs. This is NOT recommended, the bugs can be subtle and hard to debug.