http://www.cockos.com/reaper/download.php
Version 4.59 Changelog
More stuff
JSFX:
added many new gfx APIs and functionality (including gfx_dest for offscreen drawing)
string support for code, improved language syntax .
IDE: better syntax highlighting with simple error detection, ctrl+T for matching parentheses/strings/etc
IDE: can open/edit multiple files at once (ctrl+O on import line, or similar)
IDE: watch window has searchable filter, can also do value=xyz or refs=xyz, other operators include <, > and &
faster in-place fft_permute(), fixes to old bugs in FFT/memcpy
fixed endian issue in file_var()/file_mem() reading of 16 bit wav files on PPC
fixed file slider incorrect defaults
force disabling FPU exceptions for better compatibility with certain plugins .
hidden sliders can now start with -- to prevent adding UI gap, improvements to spacing
sliderchange(-1) will trigger undo point when called from @gfx
MIDI editor:
better handling of selection changes when using one MIDI editor per track
fixed editing individual note velocity bars
option to let MIDI editor remain open when the active media item is deleted in the arrange view
reworked editor behavior preferences in options and in editor contents menu
unhide hidden note rows when the user switches to piano keyboard view
Render:
respect text cursor and selection when inserting wildcards from wildcard menu
VU meters for master mix and stem tracks (mono, stereo, multichannel)
VU meters display up to 24 channels for multichannel renders
optimized output filename collision detection
OSX:
more descriptive MIDI device names, which reduces potential order changes of similarly named devices
scan /Library/Application Support/REAPER/UserPlugins for native REAPER plug-ins (such as SWS)
Peaks:
option to put peak files in peaks/ subdirectory from media
option to force alternate peak-path for select media paths (such as sample libraries, etc)
Project bay:
improvements to media item length sorting
support for moving/copying media to any destination directory
FX: fix for win 8.1 hang on fx add with default preset .
Media explorer: updated pitch shift API
Menus: better sorting for ini files
MIDI: arrange view note scaling is per-track, rather than per-item
OSC: added messages to jump to marker or seek to region
ReaEQ: fixed locking issue on preset load
ReaMote: improved timeout behavior when remote host stops responding
ReaMote/ReaStream: improved socket polling behavior (poll() on OSX, allow more than 64 connections on win32)
ReaSamplomatic5k: fixed potential crash on loading with offline media .
Save as with copy: move only when in previous media path (added in 4.58) made optional .
Undo: better undo state descriptions for FX and envelope edits