1. v4.591 - January 17 2014
  2. FX: fixed keyboard navigation in FX chains on Windows .
  3. JS: fixed sizing issue on OSX .
  4. MIDI editor: fixed velocity lane editing on OSX .
  5. RS5k: fixed peakbuilding when changing samples via combo box
  6. JSFX:
  7. added many new gfx APIs and functionality (including gfx_dest for offscreen drawing)
  8. string support for code, improved language syntax .
  9. IDE: better syntax highlighting with simple error detection, ctrl+T for matching parentheses/strings/etc
  10. IDE: can open/edit multiple files at once (ctrl+O on import line, or similar)
  11. IDE: watch window has searchable filter, can also do value=xyz or refs=xyz, other operators include and &
  12. faster in-place fft_permute(), fixes to old bugs in FFT/memcpy
  13. fixed endian issue in file_var()/file_mem() reading of 16 bit wav files on PPC
  14. fixed file slider incorrect defaults
  15. force disabling FPU exceptions for better compatibility with certain plugins .
  16. hidden sliders can now start with -- to prevent adding UI gap, improvements to spacing
  17. sliderchange(-1) will trigger undo point when called from @gfx
  18. MIDI editor:
  19. better handling of selection changes when using one MIDI editor per track
  20. fixed editing individual note velocity bars
  21. option to let MIDI editor remain open when the active media item is deleted in the arrange view
  22. reworked editor behavior preferences in options and in editor contents menu
  23. unhide hidden note rows when the user switches to piano keyboard view
  24. Render:
  25. respect text cursor and selection when inserting wildcards from wildcard menu
  26. VU meters for master mix and stem tracks (mono, stereo, multichannel)
  27. VU meters display up to 24 channels for multichannel renders
  28. optimized output filename collision detection
  29. OSX:
  30. more descriptive MIDI device names, which reduces potential order changes of similarly named devices
  31. scan /Library/Application Support/REAPER/UserPlugins for native REAPER plug-ins (such as SWS)
  32. Peaks:
  33. option to put peak files in peaks/ subdirectory from media
  34. option to force alternate peak-path for select media paths (such as sample libraries, etc)
  35. Project bay:
  36. improvements to media item length sorting
  37. support for moving/copying media to any destination directory
  38. FX: fix for win 8.1 hang on fx add with default preset .
  39. Media explorer: updated pitch shift API
  40. Menus: better sorting for ini files
  41. MIDI: arrange view note scaling is per-track, rather than per-item
  42. OSC: added messages to jump to marker or seek to region
  43. ReaEQ: fixed locking issue on preset load
  44. ReaMote: improved timeout behavior when remote host stops responding
  45. ReaMote/ReaStream: improved socket polling behavior (poll() on OSX, allow more than 64 connections on win32)
  46. ReaSamplomatic5k: fixed potential crash on loading with offline media .
  47. Save as with copy: move only when in previous media path (added in 4.58) made optional .
  48. Undo: better undo state descriptions for FX and envelope edits

REAPER v4.591 Final x64 x86 WiN MAC-CHAOS