0.9.36.2 (approx) -> 0.9.36.5
[NO] cdrom/CDAccess_Image : added support for SBI files (SBI will be handled in external disc system)
[OK] psx/CDC : removed stub for Command_Sync (WHY?)
[OK] psx/psx : fixed bug (SPU-related: clarified read order by turning into two statements)
[NO] psx/psx : StateAction bugfix
0.9.36.5 -> 0.9.37-UNSTABLE
(General improvements and state fixups)
(bios hash check at loadstate time added)
(disc CDIF media changing infrastructure heavily revised)
[OK] psx/cdc : DMForceStop refactoring
[OK] psx/cpu : MULT_Tab24 changes
[OK] psx/cpu : AssertIRQ refinement
[OK] psx/cpu : BIOSPrintMode revisions
[OK] psx/cpu : Odd PC address handling
[OK] psx/cpu : Some int signedness tweaks, maybe to fix warnings or even bugs
[NO] psx/debugp : SPU register names changed (not using debug.cpp)
[OK] psx/dma : Cleanup and bugfixes, notably in RecalcIRQOut
[NO] psx/frontio : port configuration and organization changes; NV reading api changes
[OK] psx/frontio : FrontIO::Write and Read fixes
[OK] psx/frontio : FrontIO::Reset powering_up handling (independent of reset?)
[OK] psx/frontio : GPULineHook fixes maybe related to org changes
[OK] psx/GPU* : A lot of work and refactoring
[OK] psx/GTE : division refactors and improvement
[OK] psx/input/* : fio-related refactors (organization and Power-up logic) ( TODO - some of the powerup-related logic seems not to have made it?)
[OK] psx/input/dualshock : AM toggle changes
[OK] psx/irq : reorg
[NO] psx/psx : loader edits, firmware region list, disc ID stuff (TODO - update later when disc ID reintegrated into core as perk) (CalcRegion_By_SA, ConstrainRegion_By_SA, etc.)
[OK] psx/psx : fio-related powerup stuff
[NO] psx/psx : fio-related configuration stuff 
[??] psx/psx : SCEE/SCEA/SCEI SCEx stuff changed (???)
[!!] psx/psx : LoadEXE/PSF1 changes (TODO - need these)
[OK] psx/spu* : register renames and misc bugfixes
0.9.37-UNSTABLE -> 0.9.37.1
[NO] psx/cpu : fix some savestate problem with ReadAbsorbDummy, seems alarming but maybe was just backwards compatibility
[OK] psx/spu : clamp some sound output presumably messed up by prior reverb changes
0.9.37.1 -> 0.9.38-UNSTABLE
(major CDIF changes)
(simplefifo refactored)
[!!] psx/cdutility : substantial revisions to disc sector synthesis with respect to leadout, "UDAPP", and "TSRE" (thread-safe re-entrant) which I dont understand. Need to study for DiscSystem.
[OK] required math_ops changes
[OK] SimpleFifo changed to PSX-only FastFIFO
[OK] psx/cdc : set SoftReset Mode to 0x20
[OK] psx/cdc : Edits to MakeStatus and BeginResults and ReadResult
[OK] psx/cdc : in HandlePlayRead, handling of leadout sector synth moved to CDIF
[OK] psx/cdc : in Update, Mode handling and reading of subcode changed
[OK] psx/cdc : in Update, reading of subcode changed. This isn't very important, it just saved reading the 2352 sector bytes when it wasn't needed.
[OK] psx/cdc : error handling in Command_Setloc
[OK] psx/cdc : PreSeekHack edits
[OK] psx/cdc : Command_GetTD improvements
[OK] psx/cdc : Command_SeekL timing changes
[OK] psx/cpu : helpful changes to case ranges and jump table. double check for savestate changes.
[OK] psx/dma : easy bugfixes
[??] psx/gpu : display timing changes ?? study more
[OK] psx/gpu : BlitterFifo changes, related to FBWrite/Read
[OK] psx/gpu : a bunch of bugfixes
[OK] psx/gpu : video standard mismatch warning suppressed during DisplayOff
[OK] psx/gpu : be aware of savestate changes
[OK] psx/gpu_line : easy bugfixes
[OK] psx/gte : division bugfixes
[OK] psx/memcard : refactors and maybe bugfixes easy to port
[OK] psx/multitap : general revisions, easy to port, note savestate changes
[OK] psx/mdec : easy fifo and timing related changes
[OK] psx/spu : reverb reg fixes or reorg
[OK] psx/psx : DMACycleSteal stuff
[NO] psx/psx : CalcRegion_By_SYSTEMCNF and TestMagicCD updated
[NO] psx/psx : DiscSanityChecks added (add feature later maybe)
0.9.38-UNSTABLE -> 0.9.38.1
[NO] psx/psx : DiscSanityChecks fix (OK if we used this feature)
0.9.38.1 -> 0.9.38.2
[OK] psx/gpu_polygon : Fixes to poly rasterizing
0.9.38.2 -> 0.9.38.4
[OK] psx/cdc : Change to fundamental sector reading for tomb raider
[OK] psx/cpu : Elaborate debug poke capabilities
[OK] psx/debug : Elaborate debug poke capabilities
[OK] psx/gpu : Alter mouse coordinate translation
[OK] psx/gpu : Alter texcache invalidation, TPage and DrawMode commands
[OK] psx/psx : Elaborate debug poke capabilities
0.9.38.4 -> 0.9.38.5
[OK] psx/cdc : substantial changes to disc swapping and seek retries
[OK] psx/gpu : change to comments
[OK] psx/memcard : change to debug output
0.9.38.4 -> 0.9.38.6
[OK] psx/gpu & gpu_sprite : Fixed GPU emulation timing bugs that caused graphical glitches in "Mr. Driller G". 
0.9.38.5 -> 0.9.38.7
[OK] psx/cpu : Revisions to exception handling
[OK] psx/cpu : Many revisions and cleanups to branch and exception handling in opcode implementations
[OK] psx/dis : Just some basic disassembly changes
[OK] psx/gte : Cleanup
[OK] psx/psx : Cleanup
[OK] psx/timer : Major functional changes
[NO] psx/timer : Added loadstate sanity checks