2022-05-04   2.5.0:
-------------------
  * add calculating of canonical Huffman codes 'util.canonical_huffman()'
    and decoding thereof 'util.canonical_decode()', see openembedded#173
  * allow creating "Huffman codes" from frequency maps with a single symbol
    in 'util.huffman_code()' and 'util.canonical_huffman()', see openembedded#172
  * allow bytes-like argument in '.frombytes()' and '.pack()' - previously,
    the arguments were limited to the 'bytes' object, see openembedded#174
  * allow bytes-like arguments in 'util.deserialize()'
  * add official pyodide support
  * add [DEFLATE decompression](../examples/puff/) example
  * optimize '.bytereverse()'
  * optimize 'delslice()' for cases like 'del a[1:17:2]' when 'a' is large
  * fix 'examples/huffman/compress.py' to handle files with 0 or 1 characters,
    see also openembedded#172
  * add 'skipIF' decorator for skipping tests
  * add test

Signed-off-by: Zheng Ruoqin <[email protected]>
Signed-off-by: Khem Raj <[email protected]>

2022-05-04   2.5.0:
-------------------
  * add calculating of canonical Huffman codes 'util.canonical_huffman()'
    and decoding thereof 'util.canonical_decode()', see openembedded#173
  * allow creating "Huffman codes" from frequency maps with a single symbol
    in 'util.huffman_code()' and 'util.canonical_huffman()', see openembedded#172
  * allow bytes-like argument in '.frombytes()' and '.pack()' - previously,
    the arguments were limited to the 'bytes' object, see openembedded#174
  * allow bytes-like arguments in 'util.deserialize()'
  * add official pyodide support
  * add [DEFLATE decompression](../examples/puff/) example
  * optimize '.bytereverse()'
  * optimize 'delslice()' for cases like 'del a[1:17:2]' when 'a' is large
  * fix 'examples/huffman/compress.py' to handle files with 0 or 1 characters,
    see also openembedded#172
  * add 'skipIF' decorator for skipping tests
  * add test

Signed-off-by: Zheng Ruoqin <[email protected]>
Signed-off-by: Khem Raj <[email protected]>

Drop patch that was merged upstream.

License update: a copyright line was removed. The license is still MIT.

Changes:
Version 6.1.2
=============

Code Fixes
----------
* Fix for low-severity CVE-2026-23868 affecting gifponge, giftool, and gifbuild,
  but not the core library - library clients need not be alarned.

Version 6.1.1
=============

This release bumps the major version, but only one entry point -
EGifSpew() - has changed signature and behavior (in order to be able
to pass out a detailed error code). The internal error
codes in the E_GIF_ERR series have changed value so none of them
collides with GIF_ERROR.

This code has been systematically audited and hardened wuth
ChatGPT-5.2. The only library fixes reported by users or found by
robot were for some memory leaks that could only triggered by severely
malformed GIFs. Other bugs are edge-case failures in the CLI tools.

The gif2rbg CLI tool has been moved to the "obsolete" bin, because its
only deployment case in 2026 is as a piñata at fuzzer parties.

Warning: the CLI tools in the obsolete category will soon be removed
from the distribution entirely. The maintainer is tired of fielding
junk bugs filed against them by would-be coup-counters who found yet
another edge case, and the rest of the world doesn't need noisy CVEs
that aren't actually DoS or security issues for giflib clients.

Code Fixes
----------

* Fix for CVE-2021-40633.
* Fix SF bug openembedded#165 EGifSpew leaks GifFileOut->SColorMap
* Fix SF bug openembedded#171 ImageMagick required to build giflib on non-Darwin Platforms
* Fix SF bug openembedded#172 Incorrect object files in shared libutil on darwin
* Fix SF bug openembedded#173 installation of manual pages and html documentation
* Fix SF bug openembedded#175 Memory leaks in gifecho.c's main() and in gifalloc.c's GifMakeMapObject
* Fix SF bug openembedded#177 wrong pointer used in giftool getbool
* Fix SF bug openembedded#179 Path Traversal vulnerability
* Fix SF bug openembedded#180: -Wformat-truncation likely pointing out an actual bug
* Fix SF bug openembedded#182 out‐of‐bounds writes in Icon2Gif
* Fix SF bug openembedded#184 uninitialized buffer in DumpScreen2RGB
* Fix SF bug openembedded#185 integer overflow in gifbg.c
* Fix SF bug openembedded#186 integer overflow in Icon2Gif
* Fix SF bug openembedded#187: CVE-2025-31344
* Fix SF bug openembedded#170 Tests failing on Ubuntu Noble, giftext buffer overflow
* Fix SF bug openembedded#165 EGifSpew leaks GifFileOut->SColorMap
* Fix SF bug openembedded#162 detected memory leaks in GifMakeSavedImage giflib/gifalloc.c
* Fix SF bug openembedded#161 detected memory leaks in EGifOpenFileHandle giflib/egif_lib.c
* Fix SF bug openembedded#142 ABI break public symbol GifQuantizeBuffer

Other bugs that duplicate these have breen addressesed by these fixes

* SF bug openembedded#156 EGifSpew leaks SavedImages (and more); won't fix, caller
  might want to write a GIF, modify the in-memory data, then write
  again.

Tests
-----

Test suite now emits TAP (Test Anything Protocol).

Signed-off-by: Gyorgy Sarvari <[email protected]>
Signed-off-by: Khem Raj <[email protected]>