ares v139 has now been released.

Since v138, a total of 13 contributors have created 67 commits to the ares codebase.

If you wish to see the full changelog in a per-commit format along with their authors, similarly to how previous release notes were written, you can do so on GitHub here.

Bandai - WonderSwan / WonderSwan Color

• Improve EEPROM emulation accuracy

Nintendo - NES / Famicom

• Fix DMA interrupt
• Various PPU improvements: most (all?) current PPU accuracy test roms now pass!
• Improve emulation of MMC3: fixes test roms and crashes in Mickey's Safari & Incredible Crash Dummies
• Fix missing scanlines in Burai Fighter (USA) (last known rendering bug!)
• Fix MC-ACC IRQ timing
• Add support for mapper 150 (UNL-SACHEN-74LS374N)
• Add support for mapper 229 (UNL-BMC-31-IN-1)
• Add support for mapper 225/255 (UNL-BMC-128)
• Add support for mapper 172 (TXC-22211B)
• Add support for mapper 132/173 (TXC-22211A/C)
• Add support un-headered roms with the .unh extension (note: uses internal database; unknown roms will not work, headered roms are still preferred)

Nintendo 64 / Nintendo 64 DD

• Disable run-ahead for 64DD; fixes an issue that caused 64DD games to fail to boot.

Nintendo - Game Boy Advance

• Improve VRAM mirroring in bitmap background modes
• Implement 1-cycle timer latch behavior
• Improve BIOS open bus edge case emulation
• Increase synchronisaton between comonents: slight performance loss for measurable accuracy gain in irq dma tests
• Improve video capture DMA such that it only runs if enabled on scanline 162 of previous frame

Sega - Mega Drive / Genesis / CD / 32X

• Implement correct SH2 clocks for PAL/NTSC 32X
• Improve 32X PWM volume/mixing by taking configured cycle rate into account

User Interface

• Improve driver settings and full-screen behavior on macOS
• Fix an issue where IPS patches that extend the rom would fail to apply
• Fix an issue where changing the video driver may not correctly apply settings
• Support "Default" as a device with the WASAPI driver on Windows (Win10 only)
• FIx an issue where some settings would not persist on non-english locales