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REAPER supports all Windows version from Windows XP to Windows 10.

The Windows version also works well with WINE.

REAPER supports all OS X versions from 10.5* to 10.11.

Windows 32-bit
REAPER v5.23 - 9MB
Windows XP/Vista/7/8/10
Windows 64-bit
REAPER v5.23 - 11MB
Windows XP/Vista/7/8/10 x64
OS X 32-bit
REAPER v5.23 - 14MB
OS X 10.5-10.11
OS X 64-bit
REAPER v5.23 - 16MB
OS X 10.5-10.11
REAPER 5.23: We are great programmers, folks. We make the best software. Really terrific software. Everybody says it's the best. (applause)
Big Clock
  • support image (including animated .gif) backgrounds for visual click mode
  • allow relative output directories, improve handling of blank render path
  • display render-complete notification on macOS 10.8+
  • improve recent render path menu
  • include tail setting in output presets
  • add option for incoming MTC to be treated as 23.976ND/29.97ND vs 24/30fps
  • improve display of LTC/MTC start offset in ND modes
  • support sending 23.976ND/29.97ND as 24/30fps MTC
  • relocate cursor in response to MMC goto/locate timecode command
Notation editor
  • MusicXML import
  • support custom stem/beam direction .
  • support pedal notation in MusicXML export
  • add x-fade shortened loop action
  • improved auto fades when recording
  • improved sample length control behavior (shift for fine adjustment)
  • change various OS X instances to macOS
  • include edit menu for modal windows such as file open/save
  • fix possible incorrect timing of incoming IACbus MIDI events
  • remove option for VST unloading
  • restored 5.1x and previous behavior for separate default audio input/output devices .
  • fix -renderproject command line option .
  • use resource path of command line -cfgfile specified .ini file specified (matching Windows behavior)
  • brighten grid/influence lines
  • improve parameter names
  • improved pan gain behavior, deprecated old behavior with 'Normalize multichannel gain' checkbox
  • increase zoom range, Z-axis scaling
  • prevent context menu appearing when using marquee selection
  • fix UI issue when displaying high speaker banks .
  • correct speaker influence field display height
  • add actions to clear latch for all/selected tracks .
  • fix issues with write automation to time selection and zero transition time .
  • ignore latch reset on looped playback option in latch preview mode
  • optimize moving envelopes across tracks for large projects
  • do not reset send envelope panel size on undo/redo .
Command line
  • improve command line help, add macOS support for -h .
  • improve handling of -cfgfile without paths, use default appdata path if non-portable install
MIDI editor
  • add default toolbar button for step sequencing
  • fix 14-bit midi CC lane-presence indications .
  • update internal state immediately on various API calls .
Parameter modulation
  • fix application of parameter modulation when LFO/ACS enabled but with 0% strength
  • fix issue when manually entering LFO speed .
  • fix support for video processor parameter ranges
  • allow more than -150dB of gain reduction .
  • improve GR meter behavior with large block sizes .
  • allow Lua to access unknown reaper.* and gfx.* variables/functions .
  • fix potential memory leak when calling Lua APIs with incorrect syntax
  • add latch preview toolbar icon, update other automation mode toolbar icons
  • allow WALTER layouts to position overlapping track index and bus-related buttons, if they desire
  • improve .gif preserve-transparency mode .
  • auto-crossfade images by default (requires use of video processor preset for actual fades)
  • improve behavior with MIDI editor and media explorer buttons
  • "Move position of item to edit cursor" respects item snap offset .
  • allow relative project auto-save paths
  • improve cursor feedback when ctrl+dragging sends .
Open item copy in editor
  • ignore limit-to-realtime preference .
Project settings
  • improve layout, fix samplerate label .
  • when copying regions, create new media item groups if necessary .
  • fix potentially incorrect item group creation
  • more predictable behavior when snapping to non-grid points .
Stretch markers
  • fix incorrect hit testing in inactive take lanes
Time map
  • fix behavior editing tempo marker which transitions to time signature marker .
  • added APIExists() function, to test if a given API function exists

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