Update to 1.53.81:

    Rebuilt IRQ handling. (zones)
    Improved overall timings, now Snes9x can handle events in a opcode a little. (zones)
    Improved screen interlace and sprite interlace supports. (OV2, zones)
    Fixed Hi-Res pixel plotter. (BearOso, zones, OV2)
    Fixed C4 for Mega Man X2's "weapon get" screen. (Jonas Quinn)
    Fixed Super Buster Bros. graphics after reset. (Jonas Quinn)
    Improved SA-1 support. (zones)
    Added SA-1 CC2 support. (Jonas Quinn, byuu)
    Fixed SA-1 NMI override mode. (zones)
    Fixed Dual Orb 2 sound glitch. (byuu)
    New APU timing hack, fixes various games that exhibit problems with Blargg's SNES_SPC library. (OV2)
    Fixed the problem that echo buffer breaks IPL ROM. (zones, OV2)
    Fixed movie snapshot unfreeze inconsistency. (gocha)
    Faster config file saving. (OV2)
    Fixed BlockInvalidVRAMAccess config file option. (windows port, unix port and gtk legacy config) (Jonas Quinn)
    Remove POSIX dup and access calls, and rename qword to fix compilation with Cell SDK. (BearOso)
    Fixed PS3 version save state crash by using heap allocation for soundsnapshot. (danieldematteis)
    Fixed crash relating to double-closed descriptor. (BearOso)
    Removed CPUShutdown speedhack, DisableHDMA and DisableIRQ options. (zones)
    Removed remaining outdated asm code. (zones)
    JMA 64 bit support. (kode54, Nach, friedrich.goepel)
    GTK+, Win32, Mac: Added optional Hi-Res blending. (BearOso, OV2, zones)
    GTK+, Win32: Support for bsnes-style XML shaders. (BearOso, OV2)
    Unix : Fixed segfault and hang-up with -DNOSOUND. (zones)
    GTK+ : Added ability to set specific folders for SRAM, patches, snapshots, etc. (BearOso)
    GTK+ : Fixed many permissions issues with config folders. (BearOso)
    GTK+ : Updated compatibility with latest GTK+ and GtkBuilder. Added experimental support for GTK+ 3.x. (BearOso)
    GTK+ : Updated software output to use cairo and added the ability to use bilinear-filtering with it. (BearOso)
    GTK+ : Fixed issues where cheats wouldn't stay enabled. (BearOso)
    GTK+ : Fixed focus issue when there is no window manager. (BearOso)
    GTK+ : Fixed X Visual incompatibilities and expose problems in the Xv and OpenGL outputs. (BearOso)
    GTK+ : Fixed vsync with new X Server and NVIDIA drivers. (BearOso)
    GTK+ : Added "Reduce input lag" option to OpenGL output. (BearOso)
    GTK+ : Added a visual indication of the expected video refresh rate for the currently selected sound input rate. (BearOso)

(wiz)