I have re-licensed Xdelta version 3. I intend unreal tournament 2003 .exe maintain these, not those, going forward. This will be addressed in future releases. 9 and a new “64bithash” branch are in the development repository, for now.
The new branch is aimed at supporting -B flag values greater than 2GB and will be released as 3. 0 when it is passes testing. The following public key may be used to verify future Xdelta releases. Windows build now includes support for liblzma secondary compression with “-S lzma”. I would like to say not thank you to code. This is a bug fix for a performance regression in 3.
5, which I made available on November 12, 2012 without announcement. 5 encoder would achieve poor compression for inputs larger than the source window, due to an improper fix for issue 149. This has demonstrated several needed improvements in the release process I’m using, which I’ll work on putting in the next release. Non-Windows build now includes support for liblzma secondary compression with “-S lzma”. I’ve updated the 32-bit Windows binary here, I’ll post an update when a 64-bit build is available. A minor change in behavior from previous releases. If you run xdelta3 on source files smaller than 64MB, you may notice xdelta3 using more memory than it has in the past.
0 is a stable release series. 0z prints a new warning when it decompresses externally-compressed inputs, since I’ve received a few reports of users confused by checksum failures. Remember, it is not possible for xdelta3 to decompress and recompress a file and ensure it has the same checksum. 0y fixes several regressions introduced in 3.
0w related to the new support for streaming the source file from a FIFO. This was a long-requested feature and I’m pleased to report that now, with the fixes in 3. 0y, it appears to be working quite well. The upshot of this feature is that you can encode or decode based on a compressed source file, without decompressing it to an intermediate file.
This is also fixed, and there’s a new test to ensure it won’t happen again. Windows users: I need to investigate issue 101 before building a release of3. Until I can confirm that streaming-source-file support works on Windows, please continue using the 3. Update: The built-in support for automatic decompression of inputs is interacting badly with the new source handling logic, results in poor compression. When decoding with a non-seekable source file, the -B flag, which determines how much space is dedicated to its block cache, must be set at least as large as was used for encoding. Re: MS “Linker Version Info” in 3. Xdelta on Microsoft platforms is slower than the previous build by a factor of two.
First of all I want to thank you for creating XDelta tool. Realy nice and well documented stuff which sometimes helps a lot. Test was conducted on virtual memory disk using RAMDiskXP v2. It was done to exclude any impact from IO system.