REAPER 6.26

What's new in this version:

Razor edit:
- action to crossfade items at time selection acts on razor edits if they exist
- add action to move nearest razor edit edge to edit cursor
- add mouse modifiers to remove area from razor edit selection
- auto-scroll vertically when editing razor edit top/bottom edge
- fix stretching automation items across tempo changes when razor edit area does not match automation item length
- mouse modifer to split items at razor edit edges selects media items and removes the razor edit area
- respect preference to update video playback position when editing audio items
- update display after running action to enclose media items

JSFX:
- add output polarity setting for Liteon/nonlinear
- autoexpand soft knee fix from sstillwell
- update 1175 compressor and various others to fix overcompression, add deprecated blown capacitor mode to preserve old behavior
- add improved SRC gain correction mode for guitar/amp-model and guitar/amp-model-dual

Video processors:
- do not warn when loading empty video processor preset
- fix preset name preservation behavior
- make preset list consistent with other FX types (user presets first)
- support preset navigation API

Glue:
- actions glue within razor edit areas if they exist
- default glue action splits items and glues only within time selection, if all selected items intersect the time selection
- former default glue action is renamed "expanding to time selection if any", custom actions and scripts that use it are unaffected

macOS:
- add NSMicrophoneUsageDescription to improve audio input support on Big Sur
- main window fullscreen button activates REAPER-native fullscreen rather than OS fullscreen
- workaround Big Sur MIDISend() bug where 250 or more events at the same timestamp crashes

Media items:
- adjust snap offset when copying selected part of media item
- preserve relative snap offset when copying media items

Metadata:
- support displaying multiple iXML or xmp metadata keys in media source properties dialog
- support embedding images when rendering FLAC files

MIDI:
- suppress unnecessary prompt on importing MIDI files •
- fix issues when launching rename note action via enter key
- improve MIDI editor focus behavior when closing various text editing fields

VST:
- improve bridged plug-in floating window behavior on macOS
- improve floating window behavior of bridged VST plug-ins

Actions:
- action to insert or extend MIDI item does not skip existing looped MIDI items

Arrange:
- prevent possible overdraw with selected track cursor bracket and blinking cursor

Dither:
- use prvhash for rng/tpdf generation (courtesy Aleksey Vaneev)

Edit cursor:
- display slightly subtler bracket on last selected track

Envelopes:
- fix editing automation item edge point using envelope point editor dialog

Mute automation:
- fix potential hang with empty automation item

ReaScript:
- update Track_GetPeakInfo()/Track_GetPeakHoldDB() to support master track RMS, update documentation

ReaSurround:
- update track channels only when increasing plugin speaker count, not when changing plugin input channel count or decreasing speaker count

ReaVerb:
- add new SRC-normalization mode which should be more consistent for some impulses and samplerate combinations

Region/Marker Manager:
- support exporting take markers, but not importing

Render dialog:
- add support for rendering razor edit areas
 
API:
- add ResolveRenderPattern, to resolve a wildcard pattern into a list of target filenames