See 2110 Release Notes, 2109 Release Notes, and 2108 Release Notes.

FEX-2110

Usability

• Adds new Thunks database config layout to make thunks easier to manage
  • See Setting Up Thunks for more information

Compatibility fixes

• Fixes to POSIX message queues, timers, and 32-bit Linux syscalls

Performance

• Vulkan X11 thunking to improve CPU performance
  • Wayland thunking not currently hooked up

Minor fixes

• AOT fix a user after free
• pressure-vessel check and install redirect
• FEXInterpreter flush logs after print. Fixes not seeing logs on crash
• EmulatedFilesystem allow guest to see real root. Fixes eON games
• FEXMountDaemon race on shutdown fix
• StructVerifier fix for comparing match across architectures

Developer usability

• Add a script to more easily extract function signatures for thunks
• RA Validation to check register allocation is correct

FEX-2109

Arm64

• Fix a bug when spilling registers on POSIX signal
• Fixes binfmt_misc install on Arch
• unaligned cmpxchg now works on ARMv8.0
  • Thanks to CallumDev for resolving this issue!

Usability

• FEXBash helper without arguments now starts a simple bash running under FEX
  • If any arguments are passed in then it still behaves similar to sh -c
• FEXConfig now allows you to load an application config
  • Also a new advanced tab to show the raw config options
  • Useful for trimming application configs

Developer usability

• FEXCore API visibility fixes
• FEXGetConfig application for getting some FEX information
• Option to disable static register allocation for testing

Minor fixes

• Bunch of fixes to try and resolve dangling FEXMountDaemon mounts
  • Significantly improved but not entirely resolved
• Fixes to POSIX signal handling
• Fixes to 32-bit ioctl emulation
• A couple new Linux syscalls implemented
• Proton fixes
• jemalloc fixes
• 32-bit wine fixes
• 32-bit siginfo_t fixes
  • Not fully resolved, needs more work

FEX-2108

Arm64

• Fix static-pie crashing
• Fix Spill slot calculation being offset by one slot
• Unaligned atomic fixes

Usability

• Adds static-pie option. Necessary for chroots
• FEXMountDaemon fixes
• Named thunk configurations

Developer usability

• Split OpcodeDispatcher in to multiple files to make navigation easier

Minor fixes

• CPUID TM and TM2 enable
• Update cpack package name to resolve package name conflict
• Memory leak in GdbStub
• Redundant string construction removal
• Moving some logs over to fmt format
• More Linux syscall implementations
• flag calculation fixes in IMUL and some ALU ops
• Implements support for POSIX signals 32 and 33
  • Fixes SOMA
• Wine fixes
• binfmt_misc supporting POCF flags
  • Fixes some edge case behaviour

The detailed change log is available on Github