b2 v20250808 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 v20250105 Changelog:
Add option to hide BBC cursor when not in focus
Add support for larger MOS ROM images: 64 KB (Compact/PC 128 S), 128 KB (Master 128 MegaROM), 512 KB (modern multi-OS)
Add support for View Trilogy and Instant Mini Office II
Allow sideways ROM load failure when switching config: it's just a warning now, so the BBC will still boot
Fix some input focus stuff: give keyboard focus to BBC on startup; unpress BBC keys when not in focus; enable clickthrough on focus on all platforms
Improve Video NuLA accuracy
Windows: build with Visual Studio 2022
Windows: fix fast user switching problems
Windows: reduce CPU usage when display sleeps
Windows: use newer libcurl
Windows, macOS: use newer SDL2

Download: b2 v20250808
Source:Here