libwebp-1.0.3

- 7/4/2019: version 1.0.3
  This is a binary compatible release.
  * resize fixes for Nx1 sizes and the addition of non-opaque alpha values for
    odd sizes (issues #418, #434)
  * lossless encode/decode performance improvements
  * lossy compression performance improvement at low quality levels with flat
    content (issue #432)
  * python swig files updated to support python 3
  Tool updates:
    vwebp will now preserve the aspect ratio of images that exceed monitor
    resolution by scaling the image to fit (issue #433)

libwebp-1.0.3-rc1

libwebp-1.0.2

- 1/14/2019: version 1.0.2
  This is a binary compatible release.
  * (Windows) unicode file support in the tools (linux and mac already had
    support, issue #398)
  * lossless encoder speedups
  * lossy encoder speedup on ARM
  * lossless multi-threaded security fix (chromium:917029)

libwebp-1.0.2-rc1

libwebp-1.0.1

- 11/2/2018: version 1.0.1
  This is a binary compatible release.
  * lossless encoder speedups
  * big-endian fix for alpha decoding (issue #393)
  * gif2webp fix for loop count=65535 transcode (issue #382)
  * further security related hardening in libwebp & libwebpmux
    (issues #383, #385, #386, #387, #388, #391)
    (oss-fuzz #9099, #9100, #9105, #9106, #9111, #9112, #9119, #9123, #9170,
              #9178, #9179, #9183, #9186, #9191, #9364, #9417, #9496, #10349,
              #10423, #10634, #10700, #10838, #10922, #11021, #11088, #11152)
  * miscellaneous bug & build fixes (issues #381, #394, #396, #397, #400)

libwebp-1.0.1-rc2

libwebp-1.0.0

- 4/2/2018: version 1.0.0
  This is a binary compatible release.
  * lossy encoder improvements to avoid chroma shifts in various circumstances
    (issues #308, #340)
  * big-endian fixes for decode, RGBA import and WebPPictureDistortion
  Tool updates:
    gifwebp, anim_diff - default duration behavior (<= 10ms) changed to match
                         web browsers, transcoding tools (issue #379)
    img2webp, webpmux - allow options to be passed in via a file (issue #355)

libwebp-1.0.0-rc3

libwebp-1.0.0-rc2

libwebp-1.0.0-rc1

libwebp-0.6.1

- 11/24/2017: version 0.6.1
  This is a binary compatible release.
  * lossless performance and compression improvements + a new 'cruncher' mode
    (-m 6 -q 100)
  * ARM performance improvements with clang (15-20% w/ndk r15c, issue #339)
  * webp-js: emscripten/webassembly based javascript decoder
  * miscellaneous bug & build fixes (issue #329, #332, #343, #353, #360, #361,
    #363)
  Tool updates / additions:
    added webpinfo - prints file format information (issue #330)
    gif2webp - loop behavior modified to match Chrome M63+ (crbug.com/649264);
               '-loop_compatibility' can be used for the old behavior

libwebp-0.6.1-rc2

libwebp-0.6.0

- 1/26/2017: version 0.6.0
  * lossless performance and compression improvements
  * miscellaneous performance improvements (SSE2, NEON, MSA)
  * webpmux gained a -duration option allowing for frame timing modification
  * new img2webp utility allowing a sequence of images to be converted to
    animated webp
  * API changes:
    - libwebp:
      WebPPictureSharpARGBToYUVA
      WebPPlaneDistortion
    - libwebpmux / gif2webp:
      WebPAnimEncoderOptions: kmax <= 0 now disables keyframes, kmax == 1
                              forces all keyframes. See mux.h and the gif2webp
                              manpage for details.

libwebp-0.6.0-rc3

libwebp-0.6.0-rc2

libwebp-0.5.2
- 12/13/2016: version 0.5.2
  This is a binary compatible release.
  This release covers CVE-2016-8888 and CVE-2016-9085.
  * further security related hardening in the tools; fixes to
    gif2webp/AnimEncoder (issues #310, #314, #316, #322), cwebp/libwebp (issue
    #312)
  * full libwebp (encoder & decoder) iOS framework; libwebpdecoder
    WebP.framework renamed to WebPDecoder.framework (issue #307)
  * CMake support for Android Studio (2.2)
  * miscellaneous build related fixes (issue #306, #313)
  * miscellaneous documentation improvements (issue #225)
  * minor lossy encoder fixes and improvements

libwebp-0.5.2-rc1

libwebp-0.5.1
- 6/14/2016: version 0.5.1
  This is a binary compatible release.
  * miscellaneous bug fixes (issues #280, #289)
  * reverted alpha plane encoding with color cache for compatibility with
    libwebp 0.4.0->0.4.3 (issues #291, #298)
  * lossless encoding performance improvements
  * memory reduction in both lossless encoding and decoding
  * force mux output to be in the extended format (VP8X) when undefined chunks
    are present (issue #294)
  * gradle, cmake build support
  * workaround for compiler bug causing 64-bit decode failures on android
    devices using clang-3.8 in the r11c NDK
  * various WebPAnimEncoder improvements

libwebp-v0.5.1-rc5

libwebp-0.5.0
- 12/17/2015: version 0.5.0
  * miscellaneous bug & build fixes (issues #234, #258, #274, #275, #278)
  * encoder & decoder speed-ups on x86/ARM/MIPS for lossy & lossless
    - note! YUV->RGB conversion was sped-up, but the results will be slightly
      different from previous releases
  * various lossless encoder improvements
  * gif2webp improvements, -min_size option added
  * tools fully support input from stdin and output to stdout (issue #168)
  * New WebPAnimEncoder API for creating animations
  * New WebPAnimDecoder API for decoding animations
  * other API changes:
    - libwebp:
      WebPPictureSmartARGBToYUVA() (-pre 4 in cwebp)
      WebPConfig::exact (-exact in cwebp; -alpha_cleanup is now the default)
      WebPConfig::near_lossless (-near_lossless in cwebp)
      WebPFree() (free'ing webp allocated memory in other languages)
      WebPConfigLosslessPreset()
      WebPMemoryWriterClear()
    - libwebpdemux: removed experimental fragment related fields and functions
    - libwebpmux: WebPMuxSetCanvasSize()
  * new libwebpextras library with some uncommon import functions:
    WebPImportGray/WebPImportRGB565/WebPImportRGB4444