Micro64 v1.00.2011.11.30 Build 639 is released. Micro64 is a freeware commodore c64 emulator. Currently micro64 has two different VIC II emulation modes: cycle exact (default, works fine) and half-cycle exact (next-gen, rudimentary implementation – currently damn slow).

Micro64 v1.00.2011.11.30 Build 639 Changelog:
- Removed deprecated 1541 clock rate LFO and cycle offset settings
- Fixed bug in the VIA timer emulation
- Rewrote IEC serial bus signal latency stuff

Download: Micro64 v1.00.2011.11.30 Build 639
Source: Here