The last version is 3.0.4 and can be found here. Support for NPAPI plugins was removed from all modern web browsers, so VLC's plugin is no longer maintained. Note that the first generation of Intel-based Macs equipped with Core Solo or Core Duo processors is no longer supported. Previous devices are supported by older releases. VLC media player requires Mac OS X 10.7.5 or later.
To play (HD) MKV in Mac, just download and installed the program on your Mac. VLC is a free and open source cross-platform multimedia player that provides users with a simple interface and customization options to play MKV files in a Mac, and almost anything ranging from video files, audio files, CDs, DVDs, ISO, network streams and more. VLC (initially VideoLAN Client) is a highly portable. Mac OS X 10.6 (Snow Leopard) (Intel), X 10.7 (Lion) (Intel), X 10.8 (Mountain Lion) (Intel) VLC Player 2.1.3.