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What's new in this version:

Master metering:
- support LUFS-M, LUFS-S, LUFS-I, LRA loudness metering in mixer and/or track control panel
- apply loudness display gain but not display offset to loudness readout numbers
- improve mixer meter RMS/loudness readout appearance contrast
- support oversampled peak metering (true peak)

Render:
- support normalizing rendered files (except video) to target peak, true peak, or loudness (RMS or LUFS)
- allow rendering to primary/secondary of the same type (e.g. wav 16-bit and 24-bit, $bitdepth recommended in wildcard)
- apply dither/noise shaping to secondary render format if enabled and format supports
- calculate and display peak, true peak (when enabled), clips/overs, RMS, LUFS, LRA (loudness range) for each rendered file
- draw peaks on first pass of 2nd pass render
- ignore preference to auto-close render dialog if normalizing or dry-run rendering
- optionally mark clips/overs (samples over +0dbFS) in render peaks display
- show first actual file used when rendering to multiple files that are autodisambiguated
- show percentage complete in render processing dialog
- support dry run rendering (everything is processed as normal, but no output files are written)
- support normalizing rendered stems to master mix peak or loudness
- support substituting user-provided string for master $track wildcard

VST3:
- support bridging/firewalling of VST3 plug-ins
- add IPlugInterfaceSupport, for plugins to request compatibility features
- add IMidiLearn interface support
- avoid threading conflicts when processing expression and keyswitch information
- internal threading changes to MIDI controller and program change handling
- require bundle/module/dll entry-points to match Cubase/VST3 spec

Render queue:
- add button to cancel all remaining renders

ReaScript:
- add GetEnvelopeInfo_Value(I_SEND_IDX) and GetEnvelopeInfo_Value(P_DESTTRACK)
- add GetSetMediaTrackInfo(B_SOLO_DEFEAT) and GetSetMediaTrackInfo(B_AUTO_RECARM)
- add GetSetProjectInfo_String(RENDER_STATS) to retrieve statistics for the most recently rendered files
- add GetSetProjectInfo_String(RENDER_METADATA) to retrieve list of all defined project metadata identifiers •
- add GetSetProjectInfo_String(RENDER_NORMALIZE) and GetSetProjectInfo_String(RENDER_NORMALIZE_TARGET)
- support running a caller-specified action before returning render statistics (see API help for details)

JSFX:
- plugins can now detect if embedded in TCP/MCP via built-in variable gfx_ext_flags
- add loudness meter plugin (supports true peak, RMS, LRA, LUFS-M, LUFS-S, LUFS-I)
- export_buffer_to_project() can take a planar_pitch parameter to allow exporting planar multichannel content
- plugin can dynamically show/hide sliders via new slider_show() function
- optimize x86_64 (now supporting SSE), aarch64, armv7l code generation

Super8:
- allow controlling loop length, synchronization mode via automatable parameters
- fix cell alignment •
- fix off-by-one-sample error in first-pass recording
- add per-channel length-division setting
- when adding loops to project, export linked channels as stereo file

Actions:
- add actions to calculate loudness of selected items/tracks/selection via dry-run render
- do not modify collapsed state of selected non-folder tracks when cycling through collapsed state for folder tracks

Automation items:
- add preference to pool/unpool automation items when split due to media item edit or razor edit
- filter out duplicate points on load •
- fix hang/slowness when adjusting very large automation items

Envelopes:
- fix incorrect minuscule gain at unity on fader-scaled volume envelopes •
- fix unexpected behavior when moving multiple sets of envelope points with no transition time between selected and unselected points

FX:
- improve AU:/VST: prefix removal for shortened FX names •
- improve reporting of play state/position when using "stop playback at end of loop if repeat is disabled"

macOS:
- improve appearance of fade menu items when using dark mode •
- improve JSFX, Video Processor and EEL2 ReaScript performance when running under Rosetta2 on M1-powered macs

MIDI:
- fix duplicate CC values being sent at the start of linear/bezier curves
- fix editing event properties from list editor with filter applied

Project bay:
- improve drag-drop preview and cursor behavior
- improve handling of MIDI items and tempo changes (existing retained items will have to be re-retained to include QN information)

Razor edit:
- fix context menu inconsistency when razor edit mouse modifiers are remapped •
- fix positioning of initial transition envelope point

Batch converter:
- support normalizing to target peak or loudness level when converting

Consolidate:
- support wildcards in consolidated file name

IDE:
- ctrl+doubleclick on function name jumps to function, normal doubleclick selects function name

LV2:
- fix multichannel non-default pin mapping state on project load

Media explorer:
- fix formatting of absolute paths from tree browser on linux/macOS

Meters:
- more informative tooltips

ReaTune:
- enable embedded TCP/MCP view for tuner

System:
- update zlib to 1.12.11 and libpng to 1.6.37

Tracks:
- prevent tiny volume change on initial track fader click

Undo:
- fix state adding when inserting new MIDI or empty items via action/menu item (6.24 regression)

Video:
- add option to choose which monitor is used for fullscreen display

Windows:
- improve installer behavior when choosing Portable checkbox after editing installation path

API:
- fix deadlock with MIDI_GetAllEvts() and buffer too small