2015-11-09 v1.5.0 "Javan Whistling Duck" This release improves upon the VP9 encoder and speeds up the encoding and decoding processes. - Upgrading: This release is ABI incompatible with 1.4.0. It drops deprecated VP8 controls and adds a variety of VP9 controls for testing. The vpxenc utility now prefers VP9 by default. - Enhancements: Faster VP9 encoding and decoding Smaller library size by combining functions used by VP8 and VP9 - Bug Fixes: A variety of fuzzing issues
it is not even avaible here: http://downloads.webmproject.org/releases/webm/index.html
It's available here: https://github.com/webmproject/libvpx/releases
commit 6226d8bdc7d0a6231398b1d92fd50a3c1f1bb84f Author: Alexis Ballier <aballier@gentoo.org> Date: Thu Nov 12 12:46:28 2015 +0100 media-libs/libvpx: bump to 1.5.0. Bug #565334.