• Substantial contributions for x64 support (#858, #866, #547, #546)
• Changed how objects are referenced (#825)
• Initial support for Span<T> (#847)
• Start of Baremetal project (#865)
• Moved to .NET5 (#846)
• New code generation optimizations (#866, #867, #868, #869, #807, #81)
• New debugger features (#828, #083)
• And lots of bug fixes!

For a full list of changes: https://github.com/mosa/MOSA-Project/milestone/12?closed=1