Hatari is a portable Atari ST emulator using SDL based on WinSTon and UAE's CPU core.Changes: Precision in sound emulation was improved, with nearly no rounding errors over successive VBL during many hours. By default, 3 YM voices are mixed using a lookup table of values measured on real STF to improve digisoun (e.g. Flashback demo by TCB). An alternative CPU core is available, based on WinUAE for more accurate Falcon emulation, including 68030 timings and MMU. Improvements in DSP emulation were made. Various changes were made in the SDL GUI. Many more functions were added in the built-in debugger. An Atari program given as an argument to Hatari will be automatically started after TOS boots. Many more small fixes were made related to video, audio, and ikbd.