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54490d51d5c6b0d794dcbad2d634d4c95fc25b6c
easy7zip/DOC/src-history.txt
Igor Pavlov 54490d51d5 15.05
2016-05-28 00:16:54 +01:00

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HISTORY of the 7-Zip source code
--------------------------------
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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