June 29th, 2006· the highnew, extranew, bestnew modes and --maximumcompression get slightly better compression (on average 0.1%)
· added --experimental option, enabling advanced experimental compression, which is NOT backward compatible with any previous 4.5xx versions
· use --experimental with any mode for greatly improved compression for some files (on average, 0.60% better compression for Audio CDs)
· extranew mode speed change when using --experimental: encoding < 35% slower, decoding < 11% slower
· --experimental can be also used together with --maximumcompression
· [other] the foobar2000 input plug-in now supports cue sheets (thanks to Artur for suggestions and testing)
· [other] official GUI interface using FroG is ready, it will be included in the upcoming OptimFROG installer (thanks to Daniel, the FroG author; available at http://frog.objective-view.de/ )
· [other] parsing WAV files with invalid headers is in the works
March 16th, 2006· successfully ported to Linux/amd64
· successfully ported to Darwin/ppc (PowerPC G3)
· many internal source code improvements
· all the newly created compressed files are completely backwards compatible (can be decoded with previous 4.50x versions)
· added ID3v2 tag support (all decoders can search for main header, skipping up to 1MB)