b2 v20221229 is released. A cross-platform BBC Micro emulator. Use your Windows/Linux PC or macOS computer to play your old BBC games or develop new BBC software.

b2 v20220801 Changelog:
Add second processor support: 4 MHz Master Turbo/3 MHz external second processor
Add joystick support
Add Windows file explorer/macOS Finder file association support
Improve CPU timing accuracy
Improve performance slightly
Improve debug tracing UI a bit (debug version only)

Download: b2 v20221229
Source:Here