Cockos has released version 2.3 of REAPER.

Changes:

• Automation: Preliminary send/hardware output volume/pan/mute automation recording, per-send automation modes.
• Automation: new pref for bezier interpolation of envelopes (project->defaults).
• Automation: vastly improved recording behavior, configurable return-time.
• Peaks: in-memory conversion of ancient (pre-1.07) reapeaks files for faster peaks drawing overall.
• Peaks: new sample-level crosses-and-lines view option.
• Peaks: anti-aliased peak/waveform view (preference defaults to on, not supported on OSX but OSX has native AA).
• Peaks: fixed occasional bug where first peak in a channel is -1.
• Fixed rendering, gluing, apply fx, etc for extremely long items (more than 2^31 samples).
• Track routing dialog now shows the proper pan slider image.
• Added option to center vertical zooms under mouse cursor.
• Audio device status: more display precision on small latency values (T,MP!).
• VST: better preset handling for some older VSTs (digitalfishphones, etc).
• VST: safer VST FXB/FXP loading.
• VST: faster generic UI controls (T,MP!).
• VST: better timeinfo reporting, support for extended timeinfo reporting measure count.
• Virtwnd: better support for small updates of big virtual windows (used by new generic controls).
• MIDI items: better tracking/sending of CCs when seeking.
• FX add dialog: disabled renaming of ReWire devices (as it was never implemented).
• FX window: reduced excess undo state changes due to comment field.
• Tooltips overhaul (T,MP!).
• Pan laws: setting a pan law of +XdB now means that signal is boosted when panned.
• Track meters now have optional indication that they are clickable when record armed.
• Track meters can now optionally not show record input selected.
• Better menu for track record mode button.
• ReWire slave: better performance, fixed repeat button thrashing with some host apps.
• Main window has dead zone along track panel resize edge.
• ReaInsert: fixed playback issues when a non-existing input is set for return.
• Mac: Preliminary AU support, support for AU with ReaMote too.
• Mac: Vast improvements in AU and VST gui display.
• MP3 seek/sync/EOF fixes (corrects vanishing peaks at the end of mp3 items).
• Themes: possible fix for random system image in some themes bug.
• Control surfaces: included Deric's Yamaha 01X surface support.
• Control surfaces: updated MCU support from spacelabstudio:
• MCU: Option for F1-F8 goto/set(ctrl) markers.
• MCU: Option for better touch handling for fader moves.
• MCU: Added user feedback (via LEDs) for Save/Undo.
• MCU: REW/FF buttons changed to Prev/Next marker.
• MCU: Solo button (near transport) clears all solos.
• MCU: Double click track select/solo selects/solos single track exclusively.
• MCU: Automation LEDs follow track selection, buttons control selected tracks.
• Cockos += Schwa. HOT.