Fixed, added, or changed:

+ Switching between paks with shortcuts unplugs the current pak and waits before putting in the new one.
+ Shortcut "notifications" should work correctly now (Thanks Koolsmoky)
+ Better detection of devices; more joysticks should work now, as well as steering wheels and things that aren´t strictly "gamepads"
+ N64 controllers can now get input from multiple gamepad type devices
+ Now able to assign a key, mouse, or gamepad control to as many N64 control surfaces as you like
/ device selection for keybinding no longer needed; devices list now shown as "Force-Feedback Devices" under ControllerPak selection (pick Rumble, and tick the "RawMode" box)
/ no longer possible to send FF events from multiple controllers to the same FF device (this shouldn´t have worked anyway)
+ now captures mouseclicks properly in Controllers tab (disable button clicks while polling)
+ INTERNATIONAL SUPPORT (and internally switched to Unicode)
+ releases exclusive mouse while in config menu (fixed a mouse bind while locked issue)
+ add independent X/Y mouse sensitivity
+ changed absolute mouse support: now choose between Buffered (default from before), Absolute, and Deadpan (control only moves while you move the mouse)
+ various optimizations, bugfixes, and spelling fixes
+ LOTS of documentation added to the source; it should be more legible now
+ rewrote controller save and restore (underlying CONTROLLER and BUTTON structs changed...)
/ Button mappings and modifiers will need to be reset on first load
+ now rewrites mempak and transferpak RAM to disk immediately after writing to controller (1.83 and previous didn´t save the mempak until RomClose)
+ now possible to map shortcuts to buttons and axes as well as keys (be careful)
+ tabbing within the config window actually works now
+ can save and load shortcuts
+ Transferpak MBC5 support fixed (Pokemon Yellow, Perfect Dark)
/ Win98/ME registry load finally fixed
+ lots of crash bugs fixed

2.1 is now in "release candidate" stage. Please test any bugs you find vs the latest DEBUG version, and if they still exist there please post.
--rabid