ccache (3.0.1-1) unstable; urgency=low The way the hashes are calculated has changed, so you won't get cache hits for compilation results stored by older ccache versions. Because of this, you might as well clear the old cache directory with `ccache --clear` if you want, unless you plan to keep using an older ccache version. zlib compression has now been incorporated upstream, but it's off by default. To enable compression, set the CCACHE_COMPRESS environment variable. See /usr/share/doc/ccache/changelog.gz for more upstream release notes for 3.0 as well as 3.0.1. -- Y Giridhar Appaji Nag Wed, 04 Aug 2010 17:43:37 +0530 ccache (2.4-8) unstable; urgency=high zlib compression is now enabled by default in order to increase the amount of object files that can fit in the cache. The impact on performance is supposed to be almost negligible (see http://www.gustaebel.de/lars/ccache/). If you do want to disable it however, simply export the CCACHE_NOCOMPRESS environment variable. Note that a zlib-enabled ccache will still read your existing uncompressed cache. If you want to compress/uncompress your cache, see the manage-cache.sh script under /usr/share/doc/ccache/examples/. -- Francois Marier Sun, 20 May 2007 19:45:07 +1200 ccache (2.4-1) unstable; urgency=low * This release changes the hash input slighly, so you will probably find that you will not get any hits against your existing cache when you upgrade. -- Francois Marier Sat, 11 Jun 2005 13:54:33 -0400