CPCBox Beta v20110621 is released. CPCBox is a CPC emulator which runs in the browser as a HTML5/JavaScript application.

CPCBox Beta v20110621 Changelog:
- The source code has been refactored. The result is a clearer, more maintainable source code.
- Fixed gatearray timings in split graphics modes. The problem was visible in Backtro, Croco Chanel and Synergy2 demos.
- Fixed and improved the snapshot parser. It was the cause for glitches in Ghosts´n goblins.
- Another DSK file header has been added to the DSK parser. Needed for Prehistorik.dsk file.
- CTM emulation now performs auto vertical centering.
- CPCBox can sing finally AY emulation has been bolted in! As of now, audio output is performed through Mozilla Audio Data API.



Source: Here