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

libwebp-v0.5.0-rc1

libwebp 0.4.4

- 10/15/15: version 0.4.4
  This is a binary compatible release.
  * rescaling out-of-bounds read fix (issue #254)
  * various build fixes and improvements (issues #253, #259, #262, #267, #268)
  * container documentation update
  * gif2webp transparency fix (issue #245)

libwebp-0.4.4-rc2

libwebp-0.4.3

- 3/3/15: version 0.4.3
  This is a binary compatible release.
  * Android / gcc / iOS / MSVS build fixes and improvements
  * lossless decode fix (issue #239 -- since 0.4.0)
  * documentation / vwebp updates for animation
  * multi-threading fix (issue #234)

libwebp-v0.4.3-rc1

libwebp-0.4.2

- 10/13/14: version 0.4.2
  This is a binary compatible release.
  * Android / gcc build fixes
  * (Windows) fix reading from stdin and writing to stdout
  * gif2webp: miscellaneous fixes
  * fix 'alpha-leak' with lossy compression (issue #220)
  * the lossless bitstream spec has been amended to reflect the current code

libwebp-0.4.2-rc2