+The major feature in this release is the new sideband API for
+client-server communication. This API will be used exclusively starting
+with 0.5.0, which breaks backward compatibility but allows to get rid
+of quite some compatibility code. Other noteworthy changes include
+decoder latency improvements and a long-standing bug fix for the
+ALSA writer.
+
+ - Sideband connections: If both para_server and para_client
+ support this feature, data is sent as a multiplexed stream.
+ - The --no_default_filters option of para_filter has been
+ removed.
+ - Several fixes and latency improvements to various decoders.
+ - The ALSA writer now limits the prebuffer time to 500ms.
+ - Documentation improvements.
+ - Overhaul of the command_util.sh script.
+ - Fixes for some minor problems found by the clang analyzer.
+ - Compiles (almost) without warnings on gcc-3.
+ - Robustness improvements of the buffer tree code.
+
+------------------------------------------
+0.4.10 (2012-03-30) "heterogeneous vacuum"
+------------------------------------------
+
+Nothing earth-shaking in this release, but quite a few usability
+improvements and the usual mix of cleanups and fixes.
+
+ - The --no_default_filters option of para_filter has been
+ deprecated. It still works but has no effect and will be
+ removed in the next version.
+ - para_gui now prints also the stderr output of the executing
+ command in the bottom window.
+ - Cleanup and consolidation of the various wrappers for
+ write(), writev(), send() and friends.
+ - The obscure error messages on mmap() failures have been
+ replaced by meaningful messages. This affects mainly
+ para_afh.
+ - para_audioc: Cleanups and memory leak fixes.
+ - Test 0004-server no longer fails if para_server is not
+ being built.
+ - New configure options: --with-id3tag-{headers,libs}.
+
+-------------------------------------
+0.4.9 (2011-12-06) "hybrid causality"
+-------------------------------------
+
+Support for another audio format, interactive mode for para_client
+and para_audiod and many small improvements/fixes all over the place.
+
+ - Support for flac, the free lossless audio codec.
+ - Fix for an endless loop in the mp3 decoder for certain
+ (corrupt) mp3 files.
+ - When executed without specifying a command, para_client
+ and para_audioc start an interactive shell (requires
+ libreadline being installed). The interactive mode offers
+ full tab completion and command line history.
+ - autogen.sh now detects a distcc setup and adjusts the
+ parameter for the -j option of make accordingly.
+ - Shared memory areas are no longer restricted to 64K. We now
+ detect the maximal size of a shared memory area at runtime.
+ - cleanup of the internal uptime API.
+ - para_server prefaults the mmapped audio file to avoid
+ delays on slow media.
+ - A new test for the test-suite that exercises the
+ communication between para_server and para_audiod.
+ - The alsa writer eats up less CPU cycles when configured to
+ use the DMIX plugin.
+ - Simplified and unified receiver code.
+ - Makefile cleanups.
+ - Commands which print a list of matching audio files now
+ emit a meaningful error message if no audio file matched the
+ given pattern(s).
+
+--------------------------------------
+0.4.8 (2011-08-19) "nested assignment"
+--------------------------------------
+
+Gcrypt support, the overhauled osx writer and regex format specifiers
+are the highlights of this release.
+
+ - support for libgcrypt as a drop-in replacement for openssl.
+ Run configure --enable-cryptolib=gcrypt to link against
+ libgcrypt. The two crypto implementations are compatible to
+ each other, i.e. a para_client executable linked against
+ gcrypt can connect to para_server linked against libssl
+ and vice versa.
+ - Rewrite of the osx writer (output plugin for Mac OS).