A new development version has been released. Changes in FS-UAE 2.5.6dev:

• Updated emulation core from WinUAE 2820b8.
  
• Load libcapsimage from plugin instead of having it bundled.
  
• Updated built-in AROS rom [WinUAE 2.8.1].
  
• Starting FS-UAE.app with config file works again on OS X.
  
• Fixed a bug (potential crash) in fs_get_application_exe_path on windows.
  
• Initial support reading resources from fs-uae.dat (or embedded in the exe).
  
• Build scripts for SteamOS / Steam runtime version.
  
• Re-enable compiler optimizations for cpuemu, use -fno-strict-overflow to work around the issue that current cpu emulation code assumes signed integer overflow behavior.
  
• Added speedlink_strike_2_gamepad_12_5_1_0_windows.conf [TCD].
  
• Changes to support compilation on OS X 10.9.
  
• Added slirp support (not tested yet, not enabled by default).
  
• Enabled A2065 (not tested yet, not enabled by default).
  
• FS-UAE now uses automake in addition to autoconf.
  
• New requirement: libmpeg2 / libmpeg2convert for CD32 FMV support.
  
• Some bugfixes based on static code analysis + code cleanup.

Changes in FS-UAE Launcher 2.5.6dev:

• Add .nobackup file to Documents/FS-UAE/Cache.
  
• Fixed a bug in adf/hdf creator.
  
• Include “show all database games” (database_show_games = 0) in settings.

Regarding libcapsimage (IPF floppy image support): the plan is to have FS-UAE Launcher automatically download the plugin on demand. However, for the time being it must be manually installed. The libcapsimage plugin is based on the new 5.1 version.