WebP is a modern web image format with superior compression.
WebP lossless images are 26% smaller in size compared to PNGs.
Lossless WebP supports (alpha channel) transparency at a cost of 22% overhead.
WebP lossy images are 25-34% smaller than JPEG images at equivalent quality.
Lossy WebP supports transparency with 3Ã smaller file sizes than PNG.
A WebP file consists of VP8 or VP8L image data in a RIFF container.
For more information see the project home page:
https://developers.google.com/speed/webp/
The following packages have been upgraded in the Cygwin distribution:
- libwebp 1.6
- libwebp-devel 1.6
- libwebpdecoder3 1.6
- libwebpdemux2 1.6
- libwebpmux3 1.6
- libwebp7 1.6
As there are multiple components and changes each release, see below or
after installation read /usr/share/doc/libwebp/NEWS;
for complete details of changes see:
/usr/share/doc/libwebp/ChangeLog
or
https://chromium.googlesource.com/webm/libwebp/+log/refs/tags/v1.6.0/ChangeLog
2025-07-09 1.6.0
This is a binary compatible release.
API changes:
- libwebp: WebPValidateDecoderConfig
- additional x86 (AVX2, SSE2), general optimizations and compression
improvements for lossless
- `-mt` returns same results as single-threaded lossless (regressed in
1.5.0)
- miscellaneous warning, bug & build fixes.
Tool updates:
- cwebp can restrict the use of `-resize` with `-resize_mode`.
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