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ChangeLog file for zlib
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Changes in 0.91 (2 May 95)
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- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
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- Document the memory requirements in zconf.h
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- added "make install"
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- fix sync search logic in inflateSync
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- deflate(Z_FULL_FLUSH) now works even if output buffer too short
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- after inflateSync, don't scare people with just "lo world"
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- added support for DJGPP
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Changes in 0.9 (1 May 95)
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- don't assume that zalloc clears the allocated memory (the TurboC bug
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was Mark's bug after all :)
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- let again gzread copy uncompressed data unchanged (was working in 0.71)
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- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
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- added a test of inflateSync in example.c
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- moved MAX_WBITS to zconf.h because users might want to change that.
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- document explicitly that zalloc(64K) on MSDOS must return a normalized
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pointer (zero offset)
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- added Makefiles for Microsoft C, Turbo C, Borland C++
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- faster crc32()
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Changes in 0.8 (29 April 95)
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- added fast inflate (inffast.c)
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- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
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is incompatible with previous versions of zlib which returned Z_OK.
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- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
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(actually that was not a compiler bug, see 0.81 above)
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- gzread no longer reads one extra byte in certain cases
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- In gzio destroy(), don't reference a freed structure
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- avoid many warnings for MSDOS
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- avoid the ERROR symbol which is used by MS Windows
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Changes in 0.71 (14 April 95)
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- Fixed more MSDOS compilation problems :( There is still a bug with
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TurboC large model.
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Changes in 0.7 (14 April 95)
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- Added full inflate support.
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- Simplified the crc32() interface. The pre- and post-conditioning
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(one's complement) is now done inside crc32(). WARNING: this is
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incompatible with previous versions; see zlib.h for the new usage.
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Changes in 0.61 (12 April 95)
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- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
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Changes in 0.6 (11 April 95)
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- added minigzip.c
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- added gzdopen to reopen a file descriptor as gzFile
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- added transparent reading of non-gziped files in gzread.
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- fixed bug in gzread (don't read crc as data)
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- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
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- don't allocate big arrays in the stack (for MSDOS)
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- fix some MSDOS compilation problems
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Changes in 0.5:
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- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
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not yet Z_FULL_FLUSH.
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- support decompression but only in a single step (forced Z_FINISH)
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- added opaque object for zalloc and zfree.
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- added deflateReset and inflateReset
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- added a variable zlib_version for consistency checking.
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- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
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Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
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Changes in 0.4:
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- avoid "zip" everywhere, use zlib instead of ziplib.
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- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
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if compression method == 8.
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- added adler32 and crc32
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- renamed deflateOptions as deflateInit2, call one or the other but not both
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- added the method parameter for deflateInit2.
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- added inflateInit2
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- simplied considerably deflateInit and inflateInit by not supporting
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user-provided history buffer. This is supported only in deflateInit2
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and inflateInit2.
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Changes in 0.3:
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- prefix all macro names with Z_
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- use Z_FINISH instead of deflateEnd to finish compression.
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- added Z_HUFFMAN_ONLY
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- added gzerror()
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