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What's new in this version:

Lanes:
- improve behavior when lanes contain multiple copies of the same source media with different take envelopes
- click unsynced media item button to copy edits to a new source lane (existing behavior)
- ctrl/cmd+click (or right-click) unsynced media item button to copy media items back to original source lane
- alt/opt+click (or right-click) unsynced media item button to discard edits and replace with source lane media
- improve behavior when comping looped media items with per-take automation
- action to comp into a new copy of lane automatically copies edited media items to new lane and re-comps
- action to minimize lane usage respects track edit grouping
- add action, menu item, mouse modifier to refresh out-of-sync comp areas
- add actions to exit fixed lane view, show only one lane, set small lanes, or set big lanes for all fixed lane tracks in the project
- add action to remove empty comp areas
- add selected-tracks versions of actions to delete comp areas, delete empty comp areas, delete comp areas including media
- add support for copying all edited media items back to source lanes, or discarding all media item edits and replacing from source lanes
- comping button on a razor edit in the comping lane containing no items will choose a suitable source lane rather than creating an empty lane
- delete unsynced comp areas before running action to minimize lane usage
- fix behavior of action to select item under mouse when lanes are collapsed
- fix comping into a new copy of lane with MIDI media
- fix re-syncing multiple media items when some items have source media in the lane immediately below and some do not
- fix some edge cases where comp areas un-sync when edges barely overlap
- respect track grouping when running action from unsynced comp area right-click menu
- support "Add comp area at time selection" when right-clicking existing comp area on track showing only one lane
- support comping media items with "auto-stretch at tempo changes" enabled

MIDI editor:
- account for media item left/right trim when sizing to fit contents
- display lane information in track list
- display media item position in track list if multiple media items share the same name
- display MIDI take names in Contents submenu
- do not list media items in non-visible, non-playing lanes in MIDI editor track list
- fix tooltip for "CC selection follows note selection" button
- sort media items in track list by lane
- when editor follows track selection, follow lane selection as well
- when switching active MIDI source, ensure the source is visible in the editor

ReaScript:
- action to open ReaScript documentation defaults to Lua view
- add support for GetSetMediaTrackInfo("P_LANENAME:n")
- fix TakeFX_Show container support
- GetSetMediaItemInfo("C_LANEPLAYS") returns -1 if media item is on a non-visible, non-playing lane on a non-fixed-lane track
- GetSetMediaItemInfo("I_FIXEDLANE") always returns 0 for non-fixed-lane tracks
- support GetSetMediaItemTakeInfo("I_TAKEFX_NCH"), to get/set the number of take FX channels

FX containers:
- fix loss of pin names and parameter mappings when pasting FX
- fix behavior of single-FX-chain mode when moving FX out of container
- fix various action support for FX in containers
- preserve mappings, parameter links, envelopes etc when moving FX to/from containers

Actions:
- add action to move edit cursor to left edge of visible arrange view or MIDI piano roll
- add action to toggle preference to limit media item edge edits to source media content
- improve logic of GR/LUFS metering toggle actions when tracks have mixed states

Linux:
- add drag/drop preview
- improve support for ini files which are symlinks

Metadata:
- clarify that MPEG 7.1C channel layout is equivalent to SMPTE 7.1
- correct descriptions of MPEG 7.1 channel layout metadata
- improve descriptions of channel layout metadata

ReaSurroundPan:
- add 7.1 non-SMPTE channel layout
- support up to 128 inputs

Toolbars:
- restore support for customizing both icon and tooltip
- restore previous tooltip behavior for various actions

Tracks:
- always change track selection when clicking lane buttons, unless modifier keys are down
- fix moving tracks above spacers when the spacer is above the first track in the project
- when preference enabled to change track selection when clicking track controls, ignore modifier keys when processing track selection

Actions window:
- reset/copy actions in alternate sections also reset/copy global override states

ARA:
- improve retaining edits through undo/redo
- Automation items
- improve edge point shapes and loopability for sine and parametric LFO types

CLAP:
- prevent misbehavior when preference enabled to flush FX on loop
- Default theme
- layout updates

Display:
- improve cursor paste location indicator on free item positioning and fixed lane tracks
- Dynamic split
- add action to immediately dynamic split items based on most recent settings

Editing:
- add preference to limit edge/crossfade edits to source media content for unlooped media items (checkbox in mouse modifiers preferences)

Empty items:
- improve performance with 'stretch to fit' and large amounts of text

FX:
- preserve parameter linking if applicable when copying/pasting FX

macOS:
- improve system memory use/free statistics in performance meter

Markers/Regions:
- support importing markers with negative time positions

Normalization:
- retain separate target values for peak vs loudness normalization in various dialogs

Preferences:
- improve help text for "automatically color" settings in Preferences / Appearance / Peaks/Waveforms

Razor edits:
- add action to select media items within razor edit areas

Regions:
- improve description of menu item to set loop points to region

Render:
- respect source track render channel request when rendering via master

WALTER:
- support setting/clearing custom controls via wildcards e.g. 'clear tcp.custom.*' or 'clear tcp.*'

Windows:
- use new authenticode certificate

API:
- allow plug-ins to register default-global keyboard assignments via gaccel_global or gaccel_globaltext