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Sources history of the 7-Zip

----------------------------



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

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- 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

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- 7-Zip could not decompress some cab files

- "." dir creating at FAT was fixed / long names





4.50 beta      2007-07-24

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- 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

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- CPP Synchronization objects now return HRes (error code) instead of bool.





4.45 beta      2007-04-16

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- 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

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-  More 64-bit compatibilty





4.24 beta      2005-07-06

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-  Common\NewHandler.h: using throw() for code size optimization.





4.23           2005-06-29

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-  Bug was fixed: memory leak in Cab decoder.





4.19 beta      2005-05-21

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-  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

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-  STL using was reduced

-  7za now supports Split(001) archves





4.10 beta      2004-10-21

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-  Codecs now use new interface: ICompressSetDecoderProperties2





4.07 beta      2004-10-03

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-  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

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  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.