trekawek/coffee-gb coffee-gb-2.0.6

Coffee GB 2.0.6

on GitHub

Coffee GB 2.0.6 expands local multiplayer compatibility, improves real-time CGB/SGB performance and Android playback, and adds more flexible desktop display and autofire controls.

Separate A and B autofire controls in the desktop preferences, added for #582.

Highlights

• Added a local netplay client launcher with safer state handoff, deferred four-player checkpoints, late-client support, diagnostics, and more reliable Windows relaunch behavior.
• Fixed multiplayer negotiation or state handling for Revenge of the Gator, Shikinjou, Volley Fire, Harvest Moon GB, Ikari no Yousai 2, and Jantaku Boy.
• Improved normal-speed CGB, CGB compatibility, and SGB performance, including Android scheduling, audio buffering, startup, ROM switching, and ROM filtering fixes.
• Added every desktop display scale and independent autofire controls for the A and B buttons.

Native package signing evidence

• linux-x86-64: unsigned
• windows-x86-64: unsigned
• macos-x86-64: unsigned
• macos-aarch64: unsigned

Known platform limitations

On macOS, game controllers require a compatible system SDL2 installation; keyboard input and emulation remain usable without it.

Merged pull requests

• #579 — Add local netplay client launcher — @trekawek
• #590 — Optimize native CGB performance path — @trekawek
• #592 — Optimize CGB compatibility and SGB performance — @trekawek
• #593 — Fix Android ROM switching persistence — @trekawek
• #595 — Accelerate Android DMG compatibility and SGB performance — @trekawek
• #596 — Accelerate native CGB games at normal speed — @trekawek
• #597 — Bring native CGB normal-speed games to real time — @trekawek
• #598 — Fix Android bootstrap and startup presentation — @trekawek
• #599 — Fix browsable ROM filtering on Android — @trekawek
• #600 — Optimize native CGB epochs for MBC3 RTC — @trekawek
• #601 — Fix Revenge of the Gator link negotiation — @trekawek
• #602 — Fix Shikinjou link negotiation — @trekawek
• #603 — Fix Windows local netplay relaunch and mute child clients — @trekawek
• #604 — Fix Volley Fire 2-player link negotiation — @trekawek
• #606 — Keep Android audio smooth and restore full-speed CGB emulation — @trekawek
• #605 — Normalize CGB WRAM bank state — @trekawek
• #607 — Fix Harvest Moon GB local link setup — @trekawek
• #608 — Fix Ikari no Yousai 2 local link setup — @trekawek
• #609 — Complete Jantaku Boy four-player transfer — @trekawek
• #610 — Expose every desktop display scale — @trekawek
• #611 — Add separate desktop autofire controls — @trekawek

All 54 functional commits in this release are represented by these pull requests. The other two commits in the comparison range are Maven release-version bookkeeping.

Fixed issues

• #549 — Request for 2 player link and 4 player link — fixed by #579
• #588 — Revenge of the Gator cannot connect in two-player mode — fixed by #601
• #587 — Shikinjou cannot connect for a two-player game — fixed by #602
• #589 — Another two- and four-player request — fixed by #603
• #586 — Volley Fire cannot connect for a two-player game — fixed by #604
• #585 — Two-player Game Boy Color games crash — fixed by #605
• #581 — Harvest Moon GB fails to connect to the second player — fixed by #607
• #580 — Ikari no Yousai 2 remains on the WAIT screen — fixed by #608
• #559 — Jantaku Boy four-player blank screen — fixed by #609
• #583 — Window scale does not work properly — fixed by #610
• #582 — Autofire support — fixed by #611

Full changelog: coffee-gb-2.0.5...coffee-gb-2.0.6