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7zip/DOC/src-history.txt
Igor Pavlov 5e96a82794 25.01
2025-08-03 16:14:59 +05:00

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HISTORY of the 7-Zip source code
--------------------------------
25.01 2025-08-03
-------------------------
- The code for handling symbolic links has been changed
to provide greater security when extracting files from archives.
Command line switch -snld20 can be used to bypass default security
checks when creating symbolic links.
25.00 2025-07-05
-------------------------
- 7-Zip for Windows can now use more than 64 CPU threads for compression
to zip/7z/xz archives and for the 7-Zip benchmark.
If there are more than one processor group in Windows (on systems with more than
64 cpu threads), 7-Zip distributes running CPU threads across different processor groups.
- bzip2 compression speed was increased by 15-40%.
- deflate (zip/gz) compression speed was increased by 1-3%.
- improved support for zip, cpio and fat archives.
- fixed some bugs and vulnerabilities.
- the bug was fixed : CVE-2025-53816 : 7-Zip could work incorrectly for some incorrect RAR archives.
- the bug was fixed : CVE-2025-53817 : 7-Zip could crash for some incorrect COM (Compound File) archives.
24.09 2024-11-29
-------------------------
- The default dictionary size values for LZMA/LZMA2 compression methods were increased:
dictionary size compression level
v24.08 v24.09 v24.09
32-bit 64-bit
8 MB 16 MB 16 MB -mx4
16 MB 32 MB 32 MB -mx5 : Normal
32 MB 64 MB 64 MB -mx6
32 MB 64 MB 128 MB -mx7 : Maximum
64 MB 64 MB 256 MB -mx8
64 MB 64 MB 256 MB -mx9 : Ultra
The default dictionary size values for 32-bit versions of LZMA/LZMA2 don't exceed 64 MB.
- 7-Zip now can calculate the following hash checksums: SHA-512, SHA-384, SHA3-256 and MD5.
- APM and HFS support was improved.
- If an archive update operation uses a temporary archive folder and
the archive is moved to the destination folder, 7-Zip shows the progress of moving
the archive file, as this operation can take a long time if the archive is large.
- The bug was fixed: 7-Zip File Manager didn't propagate Zone.Identifier stream
for extacted files from nested archives (if there is open archive inside another open archive).
- Some bugs were fixed.
24.08 2024-08-11
-------------------------
- The bug in 7-Zip 24.00-24.07 was fixed:
For creating a zip archive: 7-Zip could write extra zero bytes after the end of the archive,
if a file included to archive cannot be compressed to a size smaller than original.
The created zip archive is correct except for the useless zero bytes after the end of the archive.
When unpacking such a zip archive, 7-Zip displays a warning:
"WARNING: There are data after the end of archive".
- Some bugs were fixed.
24.07 2024-06-19
-------------------------
- Changes in files:
Asm/x86/Sha256Opt.asm
Asm/x86/Sha1Opt.asm
Now it uses "READONLY" flag for constant array segment.
It fixes an issue where ".rodata" section in 7-Zip for x86/x64 Linux had a "WRITE" attribute.
- The bug was fixed: 7-Zip could crash for some incorrect ZSTD archives.
24.06 2024-05-26
-------------------------
- The bug was fixed: 7-Zip could not unpack some ZSTD archives.
24.05 2024-05-14
-------------------------
- New switch -myv={MMNN} to set decoder compatibility version for 7z archive creating.
{MMNN} is 4-digit number that represents the version of 7-Zip without a dot.
If -myv={MMNN} switch is specified, 7-Zip will only use compression methods that can
be decoded by the specified version {MMNN} of 7-Zip and newer versions.
If -myv={MMNN} switch is not specified, -myv=2300 is used, and 7-Zip will only
use compression methods that can be decoded by 7-Zip 23.00 and newer versions.
- New switch -myfa={FilterID} to allow 7-Zip to use the specified filter method for 7z archive creating.
- New switch -myfd={FilterID} to disallow 7-Zip to use the specified filter method for 7z archive creating.
24.03 2024-03-23
-------------------------
- 7-Zip now can use new RISCV filter for compression to 7z and xz archives.
RISCV filter can increase compression ratio for data containing executable
files compiled for RISC-V architecture.
- The speed for LZMA and LZMA2 decompression in ARM64 version for Windows
was increased by 20%-60%.
It uses arm64 assembler code, and clang-cl is required for arm64 assembler code compiling.
- Some bugs were fixed.
24.01 2024-01-31
-------------------------
- 7-Zip uses file C/Precomp.h that is included to all c and c++ files.
CPP/Common/Common.h also includes C/Precomp.h.
C/Precomp.h defines the following macros (if _WIN32 is defined):
Z7_LARGE_PAGES 1
Z7_LONG_PATH 1
Z7_WIN32_WINNT_MIN 0x0500 (or higher)
_WIN32_WINNT 0x0500 (or higher)
WINVER _WIN32_WINNT
UNICODE 1
_UNICODE 1
if _WIN32_WINNT is defined already, C/Precomp.h doesn't redefine it.
- 7-Zip now can unpack ZSTD archives (.zst extension).
- 7-Zip now can unpack ZIP and SquashFS archives that use ZSTD compression method.
- 7-Zip now supports fast hash algorithm XXH64 that is used in ZSTD.
- Speed optimizations for archive unpacking: rar, zip, gz, wim, cab.
- Speed optimizations for hash caclulation: CRC-32, CRC-64, Blake2sp.
- The bug was fixed: 7-Zip for Linux could fail for multivolume creation in some cases.
- Some bugs were fixed.
23.01 2023-06-20
-------------------------
- All external macros for compiling C/C++ code of 7-Zip now have Z7_ prefix.
- 7-Zip COM interfaces now use new macros that allow to declare and implement COM interface.
- The code has been modified to compile with the maximum diagnostic warning level:
-Wall in MSVC and -Weverything in CLANG.
And some warning types are disabled in 2 files:
- C/Compiler.h for C/C++ code warnings.
- CPP/Common/Common.h for C++ code warnings.
- Linux/macOS versions of 7-Zip: IUnknown interface in new code doesn't use
virtual destructor that was used in previous 7-Zip and p7zip:
// virtual ~IUnknown() {}
So 7-Zip's dynamically linked shared libraries (codecs) are not compatible
between new 7-Zip for Linux/macOS and old 7-Zip (and p7zip).
- Some optimizations in filters code: BCJ, BCJ2, Swap* and opthers.
- If 7-Zip uses BCJ2 filter for big datasets compressing, it can use additional temp
files in system's TEMP folder. 7-Zip uses temp file for additional compressed
data stream, if size of such compressed stream is larger than predefined limit:
16 MiB in 32-bit version, 4 GiB in 64-bit version.
- Some bugs were fixed.
22.00 2022-06-16
-------------------------
- 7-Zip interfaces now support high precision (1 ns) timestamps with reserved
fields of tagPROPVARIANT (VT_FILETIME).
21.07 2021-12-26
-------------------------
- The sorting order of files in archives was slightly changed to be more consistent
for cases where the name of some directory is the same as the prefix part of the name
of another directory or file.
- TAR archives created by 7-Zip now are more consistent with archives created by GNU TAR program.
21.06 2021-11-24
-------------------------
- Bug in LZMA encoder in file LzmaEnc.c was fixed:
LzmaEnc_MemEncode(), LzmaEncode() and LzmaCompress() could work incorrectly,
if size value for output buffer is smaller than size required for all compressed data.
LzmaEnc_Encode() could work incorrectly,
if callback ISeqOutStream::Write() doesn't write all compressed data.
NCompress::NLzma::CEncoder::Code() could work incorrectly,
if callback ISequentialOutStream::Write() returns error code.
- Bug in versions 21.00-21.05 was fixed:
7-Zip didn't set attributes of directories during archive extracting.
21.04 beta 2021-11-02
-------------------------
- 7-Zip now reduces the number of working CPU threads for compression,
if RAM size is not enough for compression with big LZMA2 dictionary.
- 7-Zip now can create and check "file.sha256" and "file.sha1" text files
that contain the list of file names and SHA-1 / SHA-256 checksums in format
compatible with sha1sum/sha256sum programs.
21.03 beta 2021-07-20
-------------------------
- The maximum dictionary size for LZMA/LZMA2 compressing was increased to 4 GB (3840 MiB).
- Minor speed optimizations in LZMA/LZMA2 compressing.
21.02 alpha 2021-05-06
-------------------------
- 7-Zip now writes additional field for filename in UTF-8 encoding to zip archives.
It allows to extract correct file name from zip archives on different systems.
- The command line version of 7-Zip for macOS was released.
- The speed for LZMA and LZMA2 decompression in arm64 versions for macOS and Linux
was increased by 20%-60%.
- Some changes and improvements in ZIP, TAR and NSIS code.
21.01 alpha 2021-03-09
-------------------------
- The command line version of 7-Zip for Linux was released.
- The improvements for speed of ARM64 version using hardware CPU instructions
for AES, CRC-32, SHA-1 and SHA-256.
- The bug in versions 18.02 - 21.00 was fixed:
7-Zip could not correctly extract some ZIP archives created with xz compression method.
- Some bugs were fixed.
20.02 alpha 2020-08-08
-------------------------
- The default number of LZMA2 chunks per solid block in 7z archive was increased to 64.
It allows to increase the compression speed for big 7z archives, if there is a big number
of CPU cores and threads.
- The speed of PPMd compressing/decompressing was increased for 7z/ZIP/RAR archives.
- The new -ssp switch. If the switch -ssp is specified, 7-Zip doesn't allow the system
to modify "Last Access Time" property of source files for archiving and hashing operations.
- Some bugs were fixed.
20.00 alpha 2020-02-06
-------------------------
- 7-Zip now supports new optional match finders for LZMA/LZMA2 compression: bt5 and hc5,
that can work faster than bt4 and hc4 match finders for the data with big redundancy.
- The compression ratio was improved for Fast and Fastest compression levels with the
following default settings:
- Fastest level (-mx1) : hc5 match finder with 256 KB dictionary.
- Fast level (-mx3) : hc5 match finder with 4 MB dictionary.
- Minor speed optimizations in multithreaded LZMA/LZMA2 compression for Normal/Maximum/Ultra
compression levels.
- bzip2 decoding code was updated to support bzip2 archives, created by lbzip2 program.
19.02 2019-09-05
-------------------------
- Support for SHA-1/SHA-256 optimized code in
Sha1Opt.c, Sha256Opt.c, Sha256Opt.asm, Sha1Opt.asm.
19.00 2019-02-21
-------------------------
- Encryption strength for 7z archives was increased:
the size of random initialization vector was increased from 64-bit to 128-bit,
and the pseudo-random number generator was improved.
- Some bugs were fixed.
18.06 2018-12-30
-------------------------
- The speed for LZMA/LZMA2 compressing was increased by 3-10%,
and there are minor changes in compression ratio.
- Some bugs were fixed.
- The bug in 7-Zip 18.02-18.05 was fixed:
There was memory leak in multithreading xz decoder - XzDecMt_Decode(),
if xz stream contains only one block.
- 7-Zip 18.02-18.05 used only one CPU thread for bz2 archive creation.
- The changes for MSVS compiler makefiles:
- the makefiles now use "PLATFORM" macroname with values (x64, x86, arm64)
instead of "CPU" macroname with values (AMD64, ARM64).
- the makefiles by default now use static version of the run-time library.
18.05 2018-04-30
-------------------------
- The speed for LZMA/LZMA2 compressing was increased
by 8% for fastest/fast compression levels and
by 3% for normal/maximum compression levels.
- Previous versions of 7-Zip could work incorrectly in "Large memory pages" mode in
Windows 10 because of some BUG with "Large Pages" in Windows 10.
Now 7-Zip doesn't use "Large Pages" on Windows 10 up to revision 1709 (16299).
18.03 beta 2018-03-04
-------------------------
- Asm\x86\LzmaDecOpt.asm: new optimized LZMA decoder written in asm
for x64 with about 30% higher speed than main version of LZMA decoder written in C.
- The speed for single-thread LZMA/LZMA2 decoder written in C was increased by 3%.
- 7-Zip now can use multi-threading for 7z/LZMA2 decoding,
if there are multiple independent data chunks in LZMA2 stream.
- 7-Zip now can use multi-threading for xz decoding,
if there are multiple blocks in xz stream.
17.00 beta 2017-04-29
-------------------------
- NewHandler.h / NewHandler.cpp:
now it redefines operator new() only for old MSVC compilers (_MSC_VER < 1900).
- C/7zTypes.h : the names of variables in interface structures were changed (vt).
- Some bugs were fixed. 7-Zip could crash in some cases.
- Some internal changes in code.
16.02 2016-05-21
-------------------------
- The BUG in 16.00 - 16.01 was fixed:
Split Handler (SplitHandler.cpp) returned incorrect
total size value (kpidSize) for split archives.
16.01 2016-05-19
-------------------------
- Some bugs were fixed,
- Some internal changes to reduce the number of compiler warnings.
16.00 2016-05-10
-------------------------
- 7-Zip now can extract multivolume ZIP archives (z01, z02, ... , zip).
- Some bugs were fixed,
15.12 2015-11-19
-------------------------
- The BUG in C version of 7z decoder was fixed:
7zDec.c : SzDecodeLzma2()
7z decoder could mistakenly report about decoding error for some 7z archives
that use LZMA2 compression method.
The probability to get that mistaken decoding error report was about
one error per 16384 solid blocks for solid blocks larger than 16 KB (compressed size).
- The BUG (in 9.26-15.11) in C version of 7z decoder was fixed:
7zArcIn.c : SzReadHeader2()
7z decoder worked incorrectly for 7z archives that contain
empty solid blocks, that can be placed to 7z archive, if some file is
unavailable for reading during archive creation.
15.09 beta 2015-10-16
-------------------------
- The BUG in LZMA / LZMA2 encoding code was fixed.
The BUG in LzFind.c::MatchFinder_ReadBlock() function.
If input data size is larger than (4 GiB - dictionary_size),
the following code worked incorrectly:
- LZMA : LzmaEnc_MemEncode(), LzmaEncode() : LZMA encoding functions
for compressing from memory to memory.
That BUG is not related to LZMA encoder version that works via streams.
- LZMA2 : multi-threaded version of LZMA2 encoder worked incorrectly, if
default value of chunk size (CLzma2EncProps::blockSize) is changed
to value larger than (4 GiB - dictionary_size).
9.38 beta 2015-01-03
-------------------------
- The BUG in 9.31-9.37 was fixed:
IArchiveGetRawProps interface was disabled for 7z archives.
- The BUG in 9.26-9.36 was fixed:
Some code in CPP\7zip\Archive\7z\ worked correctly only under Windows.
9.36 beta 2014-12-26
-------------------------
- The BUG in command line version was fixed:
7-Zip created temporary archive in current folder during update archive
operation, if -w{Path} switch was not specified.
The fixed 7-Zip creates temporary archive in folder that contains updated archive.
- The BUG in 9.33-9.35 was fixed:
7-Zip silently ignored file reading errors during 7z or gz archive creation,
and the created archive contained only part of file that was read before error.
The fixed 7-Zip stops archive creation and it reports about error.
9.31 2012-10-31
-------------------------
- InBuffer.h : CInBuffer uses ISequentialInStream *_stream; instead of CMyComPtr<ISequentialInStream>
OutBuffer.h: COutBuffer uses ISequentialOutStream *_stream; instead of CMyComPtr<ISequentialOutStream>
9.26 2011-04-11
-------------------------
- The BUG was fixed: multi-threaded ZIP stored file size that was at scan stage,
So if the file was changed after scan, the Unpack Size field was incorrect
9.21 2011-04-11
-------------------------
- New class FString for file names at file systems.
- Speed optimization in CRC code for big-endian CPUs.
9.18 2010-11-02
-------------------------
- New small SFX module for installers (C/Util/SfxSetup).
9.17 2010-10-04
-------------------------
- IStream.h::IOutStream::
STDMETHOD(SetSize)(Int64 newSize) PURE;
was changed to
STDMETHOD(SetSize)(UInt64 newSize) PURE;
9.09 2009-12-12
-------------------------
- The bug was fixed:
Utf16_To_Utf8 funstions in UTFConvert.cpp and 7zMain.c
incorrectly converted surrogate characters (the code >= 0x10000) to UTF-8.
9.05 2009-07-05
-------------------------
- FileMapping.h::CFileMapping now returns WRes
9.04 2009-05-30
-------------------------
- ICoder.h: NCoderPropID::EEnum values were changed
9.02 2009-04-23
-------------------------
- Bug was fixed: if swap2 filter was requests at compression,
7-zip used swap4 filter instead (but id was swap2), so archives were incorrect.
4.61 2008-11-23
-------------------------
- Bug in ver. 4.58+ was fixed:
7-Zip didn't use any -m* switch after -mtc, -mcl or -mcu for .zip archives.
- Bug in .CAB code was fixed. 7-Zip didn't show some empty files,
if .CAB archive contains more than one empty file.
4.59 2008-07-27
-------------------------
- Bug was fixed:
LZMA Encoder in fast compression mode could access memory outside of
allocated range in some rare cases.
4.59 alpha 2008-05-30
-------------------------
- BUGS was fixed:
7zOut.cpp: 7-Zip incorrectly wrote size of property records in some cases.
7zIn.cpp: 7-Zip incorrectly work with archive, containg archive properties.
4.58 alpha 9 2008-04-29
-------------------------
- BUG was fixed: 7-Zip showed incorrect timestamps in ISO files.
4.58 alpha 8 2008-04-15
-------------------------
- BUG in 4.58 alpha 5/6/7 was fixed:
LZMA encoder worked incorrectly, if lp != 0.
- Unicode (UTF-8) support for filenames in .ZIP archives. Now there are 3 modes:
1) Default mode: 7-Zip uses UTF-8, if the local code page doesn't contain required symbols.
2) -mcu switch: 7-Zip uses UTF-8, if there are non-ASCII symbols.
3) -mcl switch: 7-Zip uses local code page.
- Now it's possible to use -mSW- and -mSW+ switches instead of -mSW=off and -mSW=on
4.58 alpha 7 2008-04-08
-------------------------
- BUG was fixed: BZip2Encoder and BZip2Decoder used CEvent objects without
creating, when BZip2 code was called with one thread (with -mmt1 switch or with
default switches on single thread CPU).
- .lzma support.
- RPM and NSIS support was improved.
- LZMA now stores only (2 << n) or (3 << n) dictionary size value to LZMA properties.
4.58 alpha 6 2008-03-27
-------------------------
- NTFS time extra in ZIP.
- New item property - kpidTimeType - VT_UI4 (0 - NTFS, 1 - Unix, 2 - DOS).
- Static CRC table is not required now for Lzma Encoder (in Lz MatchFinder).
4.58 alpha 5 2008-03-19
-------------------------
- Creation time (-mtc switch) for .7z archives
- LZMA encoder was converted to ANSI-C
4.58 alpha 3 2008-02-25
-------------------------
- Speed optimizations for LZMA decoding. Now it uses C code instead of C++.
- 7-Zip now has 128 MB dictionary limit for 32-bit version:
It's for speed optimization: kNumLogBits = 9 + sizeof(size_t) / 2;
- TAR: 'D' link flag support.
- 7-Zip now can unpack multivolume RAR archives created with
"old style volume names" scheme (-vn switch) and names *.001, *.002, ...
- Fixed bugs:
- 7-Zip FM could not copy / move files to root network folders like \\COMPNAME\FOLDERNAME\
In case of move it removed original files.
- SFX-WIN: if there are errors, it still could return 0.
- ZIP (.XPS file) isZip64 && thisDiskNumber16 == 0xFFFF.
- ZIP name updating:
If zip file contains extra field and you try to change properties of files,
7-zip tries to delete all extra fileds (except for WzAES).
And that code could hang.
- 7-Zip GUI didn't suggest BZip2 dictionary size used in previous run.
- If creation time stamp was included in .RAR archive, 7-zip used creation time stamp
as modification time stamp.
4.58 alpha 2 2007-12-31
-------------------------
- Small changes in Deflate and LZMA compression.
- Some speed optimizations.
4.57
----
- Bug was fixed:
Anti item is created for wrong file:
http://sourceforge.net/forum/forum.php?thread_id=1880366&forum_id=45798
4.52 beta 2007-07-32
-------------------------
- 7-Zip could not decompress some cab files
- "." dir creating at FAT was fixed / long names
4.50 beta 2007-07-24
-------------------------
- 7-Zip now replaces unsupported filenames (like "nul", "com1") during extracting.
- New switch for command line version:
-ssc[-] enables/disables case-sensitive mode.
- 7z.exe l shows archive comment for zip archives
- Some bugs were fixed: long paths names shorter than 4.
- Speed optimizations for AES encryption.
4.56 beta 2007-09-13
-------------------------
- some fixes in LZ encoder (LZMA and Deflate) code.
size_t was replaces to ptrdiff_t.
size_t version worked incorrectly with some compilers.
4.46 beta 2007-05-25
-------------------------
- CPP Synchronization objects now return HRes (error code) instead of bool.
4.45 beta 2007-04-16
-------------------------
- 7-Zip now uses C version of CRC, so you must call CrcGenerateTable at
stratup code, or you must add CPP/Common/CRC.cpp to your project.
- Method ID in .7z now is 63-bit integer (UInt64).
- Open error messages
- unRar 1.5 fixed
- unShrink fixed
- BUG of 4.43 beta and 4.44 beta was fixed.
7-Zip compressing to .zip in multi-threading mode didn't work in some cases.
4.44 beta 2007-01-20
-------------------------
- Bug was fixed: LZMAEncoder.cpp::CEncoder::GetOptimumFast
it was:
data++
fixed version:
data = _matchFinder.GetPointerToCurrentPos(_matchFinderObj) - 1;
It could lead to very small cpmpression ratio decreasing when block needs move.
4.30 beta 2005-11-18
-------------------------
- Security.h::AddLockMemoryPrivilege - installs "Large pages" feature
- MemoryLock.h::EnableLockMemoryPrivilege - enables "Large pages" feature
- Alloc.h::SetLargePageSize - sets optimal LargePageSize size
4.27 2005-09-21
-------------------------
- Some GUIDs/interfaces were changed.
IStream.h:
ISequentialInStream::Read now works as old ReadPart
ISequentialOutStream::Write now works as old WritePart
4.26 beta 2005-08-05
-------------------------
- MyAlloc(0)/BigAlloc(0) now return 0
4.25 beta 2005-07-31
-------------------------
- More 64-bit compatibilty
4.24 beta 2005-07-06
-------------------------
- Common\NewHandler.h: using throw() for code size optimization.
4.23 2005-06-29
-------------------------
- Bug was fixed: memory leak in Cab decoder.
4.19 beta 2005-05-21
-------------------------
- BZip2 code was rewritten. Now 7-Zip doesn't use original BZip2 code.
Old (original) version was moved to folder 7zip/Compress/BZip2Original/
4.14 beta 2005-01-11
-------------------------
- STL using was reduced
- 7za now supports Split(001) archves
4.10 beta 2004-10-21
-------------------------
- Codecs now use new interface: ICompressSetDecoderProperties2
4.07 beta 2004-10-03
-------------------------
- some interfaces were changed slightly to support
-stdin -stdout mode.
- FilterCoder for simple filters
- Wildcard censor class was changed.
- Bug was fixed: when encrypted stream was multiple 16,
it used additional 16 empty bytes.
3.11 2003-10-06
-------------------------
File functions support unicode strings even
on Windows 95/98/ME.
3.08.02 2003-09-20
-------------------------
More compatible with GCC.
3.08.02 beta 2003-08-20
-------------------------
Extracting bug in 7zExtract.cpp was fixed.
3.08 beta 2003-08-19
-------------------------
Big source code reconstruction.
2.30 Beta 32 2003-05-15
-------------------------
Small changes in Deflate decoder.
2.30 Beta 31 2003-04-29
-------------------------
Common/NewHandler.cpp
HeapAlloc in (included to beta 30) was changed to malloc.
HeapAlloc worked slower in Win95/98/Me.
2.30 Beta 30 2003-04-21
-------------------------
new file: Common/String.cpp
Common/NewHandler.* were changed
2.30 Beta 29 2003-04-07
-------------------------
Small changes in LZMA code.
2.30 Beta 28 2003-02-16
-------------------------
Processing anti-files was corrected.
2.30 Beta 27 2003-01-24
-------------------------
Project/Archiver/Format/Common/ArchiveInterface.h:
new IArchiveOpenVolumeCallback interface.
2.30 Beta 26 2003-01-12
-------------------------
SDK/Interface/PropID.h:
kpidComment now is kpidCommented
2.30 Beta 25 2003-01-02
-------------------------
Main archive interfaces were changed.
2.30 Beta 24 2002-11-01
-------------------------
SDK/Windows/Synchronization.h
SDK/Windows/Synchronization.cpp
- some changes.
2.30 Beta 23 2002-09-07
-------------------------
Project/FileManager folder was added.
Notation of some source files was changed.
2.30 Beta 22 2002-08-28
-------------------------
Project/FileManager folder was added.
Notation of some source files was changed.
2.30 Beta 21 2002-07-08
-------------------------
Project/Compress/LZ/MatchFinder/BinTree/BinTree.h
Project/Compress/LZ/MatchFinder/BinTree/BinTreeMain.h
Project/Compress/LZ/MatchFinder/BinTree/HC.h
Project/Compress/LZ/MatchFinder/BinTree/HCMain.h
- RAM requirements for LZMA (7z) compression were reduced.
2.30 Beta 20 2002-07-01
-------------------------
- SDK/Stream/WindowOut.h
now it uses only required memory (dictionary size).
- Project/Archiver/Resource
contains common resurces
2.30 Beta 19 2002-04-11
-------------------------
- SDK/Archive/Rar/Handler.cpp
supporting RAR29
2.30 Beta 18 2002-03-25
-------------------------
- SDK/Archive/Cab/MSZipDecoder.cpp
SDK/Archive/Cab/LZXDecoder.cpp:
bug with corrupted archives was fixed
- Project/Compress/LZ/MatchFinder/BinTree/BinTree.h
- Project/Compress/LZ/MatchFinder/BinTree/BinTreeMain.h
some speed optimization (using prefetching)
2.30 Beta 17 2002-03-03
-------------------------
- ARJ suppport.
2.30 Beta 16 2002-02-24
-------------------------
- Project/Compress/LZ/LZMA/Decoder.cpp:
Bug was fixed: LZMA could not extract more than 4 GB.
- RPM and CPIO formats.
- Project/Compress/LZ/LZMA/Encoder.*
Project/Archiver/Format/7z/OutHandler.cpp
New fast compression mode for LZMA: -m0a=0.
- New match finders for LZMA: bt4b, hc3, hc4.
2.30 Beta 15 2002-02-17
-------------------------
- Compression ratio in LZMA was slightly improved:
Project/Compress/LZ/LZMA/Encoder.*
Project/Archiver/Format/7z/OutHandler.cpp
2.30 Beta 14 2002-02-10
-------------------------
- Supporting multithreading for LZMA:
Project/Compress/LZ/MatchFinder/MT
- Common/String.h:
CStringBase::Replace function was fixed.
2.30 Beta 13 2002-01-27
-------------------------
- Compress/LZ/MatchFinder/BinTree3.h:
method
- Compress/LZ/MatchFinder/BinTreemain.h:
- one VirtualAlloc array was splitted to
the for 3 arrays.
- Hash-functions were changed.
2.30 Beta 12 2002-01-16
-------------------------
- Compress/LZ/MatchFinder/BinTreemain.h:
Compress/LZ/MatchFinder/Patricia.h:
Compress/PPM/PPMd/SubAlloc.h:
Beta 11 bugs were fixed:
- VirtualFree was used incorrectly
- checking WIN32 instead _WINDOWS.
Compress/LZ/MatchFinder/Patricia.h:
Beta 11 bug with deleting m_Hash2Descendants was fixed.
2.30 Beta 11 2002-01-15
-------------------------
- Compress/LZ/MatchFinder/BinTreemain.h:
Compress/LZ/MatchFinder/Patricia.h:
Compress/PPM/PPMd/SubAlloc.h:
using VirtualAlloc for memory allocating
- Exlorer/ContextMenu.cpp:
Testing supporting.
CreateProcess instead WinExec
- Format/Common/IArchiveHandler.h:
Exlorer/ProxyHandler.cpp:
FAR/Plugin.cpp:
New properties names: Method, HostOS.
- Exlorer/OverwriteDialog.cpp:
FAR/OverwriteDialog.cpp:
Windows/PropVariantConversions.h
Using National time format was eliminated.
2.30 Beta 10 2002-01-11
-------------------------
- Exlorer/ContextMenu.cpp: bug with context menu on
Windows NT4 in Unicode version was fixed.
- Format/7z/UpdateArchiveEngine.cpp: bug was fixed -
Updating in Beta 8 and 9 didn't work.
- Exlorer/CCompressDialog.cpp: history growing bug was fixed.
2.30 Beta 9 2002-01-08
-------------------------
- SDK/Common/Vector.h: sopporting sorted object vectors .
- Lang features.
- Two new match finders: pat3h and pat4h.
- SDK/Archive/Zip/InEngine.cpp: bug was fixed.
- SDK/Windows/FileDir.cpp: function CreateComplexDirectory
was changed.
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