4.1.0 (2010-10-31)

New Features

• Added project files for Visual Studio 2010. These are now default project files for the ZipArchive Library.
• Added the possibility to controls overwriting of files during extraction in the CZipArchive::ExtractFile(ZIP_INDEX_TYPE, LPCTSTR) method.
• Added CZipAbstractFile::HasFilePath() method to allow properly using custom file implementations that have no physical paths. That includes using abstract files with the CZipArchive::OpenFrom() method.
• Added the CZipArchive::GetLastIndexAdded() method.
• Very long paths support under Windows is now automatic. There is no need to prefix paths with \\?\ when extracting.

Changes

• Zlib library updated to 1.2.5
• bzip2 library updated to 1.0.6
• Leading path separators are removed from filenames stored in archives.
• When a trailing path separator is added to a file name, this file will be added as a folder.
• File names with trailing path separators in archive and with size 0 are always treated as folders.
• Removed the CZipArchive::SetExhaustiveRead method. Use the CZipArchive::SetSpecialFlags() method instead.
• Removed the CZipArchive::GetExhaustiveRead method. Use the CZipArchive::GetSpecialFlags() method instead.
• The CZipMemFile class derives now from CFile in MFC compilation (but not under Visual Studio 6.0 with _ZIP_FILE_IMPLEMENTATION set to ZIP_ZFI_WIN).

Bugs Fixed

• Fixed attributes conversion from NTFS system to others.
• When a hidden file was compressed under Windows it received no read permissions when extracted under Mac/Linux. Now it has read permissions for the user.
• When using CZipArchive::umExtra unicode characters were not correctly preserved under some conditions.
• When renaming a file or a directory, problems could occur when FindFast was enabled.
• Fixed a problem when removing files in large archives using Visual Studio 6.0 (thanks to Alexandr Novy).
• Fixed a problem with AES encryption under x64.
• Fixed an issue when extracting archives having Zip64 EoCD locator written when not needed.
• Fixed path separators conversion when using Unicode extra headers (thanks to Miroslav Bonchev for reporting it).
• Fixed an issue when CZipArchive::GetFromArchive() method copied a CRC encrypted file without the data descriptor.

4.0.1 (2009-04-24)

Changes

• Allowed using precompiled headers by correcting the stdafx.h inclusion order.
• Projects for Visual Studio 2010/2008/2005/2003 use now a precompiled header.

Bugs Fixed

• Fixed problem with decompressing spanned archives (thanks to Miroslav Bonchev for reporting it).
• CZipFile::Seek() in the STL version didn't seek on files larger than 2GB when Zip64 was disabled.
• Opening an archive that was not a split archive, was throwing exception when closing an archive even if the iAfterException parameter was set to CZipArchive::afAfterException (thanks to Dragan Milic for reporting it).
• Opening a binary split archive could throw an exception sometimes (thanks to Dragan Milic for the fix).
• Extracting a binary split archive could throw exception with some archives (thanks to Dragan Milic for reporting it).
• Fixed run-time check failure under Visual Studio (a cast to a smaller data type has caused a loss of data) - thanks to James Grocholl for the fix.
• Fixed custom Unicode compilation issues in the Open Source version (thanks to Ralph Valeriote for reporting it).

4.0.0 (2009-03-24)

New Features

• Unicode support compatible with WinZip (Full Version only). See Unicode Support: Using Non-English Characters in Filenames, Comments and Passwords for more information.
• Support for Visual Studio 2008 and GCC 4.x.
• Zip64 is now supported under Windows on all compilers. See Compilation of the ZipArchive Library and Integration with Applications for more information (thanks to Sean Farrow for the suggestion).
• Removed limit of 2GB during file operations when Zip64 was not enabled.
• Allowed batch renaming files for a better performance (see Modification of Archives: Replacing, Renaming, Deleting and Changing Data for more information).
• Custom split archive volumes naming scheme through classes derived from CZipSplitNamesHandler. See Segmented Archives: Splitting and Spanning for more information. It is recommended to use this method instead of modifying of the CZipCallback::m_szExternalFile in a split callback.
• Support for very long file names (more than 260 characters) under Windows (see Compilation of the ZipArchive Library and Integration with Applications for more information).
• Classes derived from CZipAbstractFile allowed in various methods in the CZipArchive class.
• Binary mode for split archives. See Segmented Archives: Splitting and Spanning for more information (thanks to Dragan Milic for suggestion).
• Unicode normalization support under Windows (see Unicode Support: Using Non-English Characters in Filenames, Comments and Passwords for more information).
• Setting code pages is now possible for the CZipArchive::SetPassword() and CZipArchive::SetGlobalComment() methods.
• Added a new consistency check CZipArchive::checkVolumeEntries (disabled by default).
• The following methods and fields were added:
  • CZipArchive::CanModify()
  • CZipArchive::ResetCurrentVolume()
  • CZipArchive::IsZipArchive(LPCTSTR)
  • CZipArchive::IsZipArchive(CZipAbstractFile&, bool)
  • CZipException::m_iSystemError
• Added a possibility to include or exclude empty directories when using the CZipArchive::AddNewFiles() method. See Compressing Data for more information.
• Faster detecting files that are not zip archives when their size is large.

Changes

• The library uses now Visual Studio 2008 project files by default. Project files for other compilers are available and maintained.
• The following compiler macros were renamed:
  • ZIP_ARCHIVE_STL renamed to _ZIP_IMPL_STL.
  • ZIP_ARCHIVE_MFC renamed to _ZIP_IMPL_MFC.
  • ZIP_ARCHIVE_WIN renamed to _ZIP_SYSTEM_WIN.
  • ZIP_ARCHIVE_LNX renamed to _ZIP_SYSTEM_LINUX.
  • _ZIP64 renamed to _ZIP_ZIP64.
  • _BZIP2 renamed to _ZIP_BZIP2.
  • ZIP_ARCHIVE_USE_LOCKING renamed to _ZIP_USE_LOCKING.
  • ZIP_ARCHIVE_BZIP2_INTERNAL renamed to _ZIP_BZIP2_INTERNAL.
• Changed opening modes for the CZipArchive::Open(LPCTSTR) method. The ZIP_AUTODETECT_VOLUME_SIZE compiler macro was removed, because it was no longer necessary.
• Allowed direct modifications of CZipFileHeader instead of calling methods of the CZipArchive class.
  • CZipArchive::RenameFile() removed. Use CZipFileHeader::SetFileName() instead.
  • CZipArchive::SetFileHeaderAttr() removed. Use CZipFileHeader::SetSystemAttr() instead.
  • CZipArchive::SetFileComment() removed. Use CZipFileHeader::SetComment() instead.
  • CZipArchive::GetFileComment() removed. Use CZipFileHeader::GetComment() instead.
• The CZipCompressor::methodStore flag allowed in the CZipArchive::SetCompressionMethod() method.
• CZipArchive::GetSegmMode() removed. Use appropriate methods of the CZipStorage class (accessible through the CZipArchive::GetStorage() method).
• Changed endianess detection. ZIP_ARCHIVE_LITTLE_ENDIAN was removed. Define _ZIP_BIG_ENDIAN to compile for big endinan. See Compilation of the ZipArchive Library and Integration with Applications for more information.
• CZipArchive::Close() returns the name of the last volume in the archive. It is useful when handling split archives (to open a split archive, it is required to open the last volume).
• The following methods and fields were renamed:
  • CZipArchive::Flush() renamed to CZipArchive::Finalize().
  • CZipArchive::SetAutoFlush() renamed to CZipArchive::SetAutoFinalize().
  • CZipArchive::GetAutoFlush() renamed to CZipArchive::GetAutoFinalize().
  • CZipActionCallback::cbRename renamed to CZipActionCallback::cbModify.
  • CZipAbstractFile::Seek(ZIP_FILE_USIZE, bool) renamed to CZipAbstractFile::SafeSeek(ZIP_FILE_USIZE, bool) to avoid compilation problems.
  • CZipFileHeader::GetCommentSize() renamed to
    CZipFileHeader::PredictCommentSize().
  • ZipPlatform::CreateDirectory() renamed to
    ZipPlatform::CreateNewDirectory() to avoid compilation problems.
• Exception CZipException::fileError is now thrown when attributes could not be read from a file (in various places).
• CZipArchive::PredictMaximumFileSizeInArchive() uses now
  CZipFileHeader::m_uComprSize instead of CZipFileHeader::m_uLocalComprSize.
• ZipCompatibility::zcNtfs value changed to 11 to be consistent with other software (thanks to Ken Daraseng for reporting it).
• CZipFile::OpenModes made compatible with CFile modes.
• CZipFileHeader::m_uVersionMadeBy contains now only a "made by " version without the compatibility information.
• When using CZipArchive::SetGlobalComment(), a file inside of archive cannot be opened for compression or extraction.
• To use custom Unicode support in the ZipArchive Library, you need to define now _ZIP_UNICODE_CUSTOM (see Unicode Support: Using Non-English Characters in Filenames, Comments and Passwords for more information).
• When using custom Unicode, CZipStringStoreSettings::m_uCommentCodePage is only used to set a file comment page, not global comment code page. Use the CZipArchive::SetGlobalComment() method instead.
• During modifications, the ZipArchive Library now checks, if the archive can be modified.
• The CZipActionCallback::cbModify does not provide an archive name in the CZipActionCallback::Init() method, because multiple files can be renamed now at once.
• Removed support for MSDN integration in Visual Studio 6.0.
• Bzip2 library updated to 1.0.5 version.

Previous History

To see the history of previous versions, please visit Archived History of Changes in the ZipArchive Library