REAPER 6.72 (64-bit)

What's new in this version:

Grouping:
- add new Group Manager window
- support track media/razor edit groups, including leader/follower groups
- add and modify track media/razor edit groups via grouping matrix, track group manager, and track group settings dialog
- media item edits on group-leader tracks will affect media items on all group-follower tracks, as if the media items were grouped
- actions that split selected media items respect track edit grouping regardless of media item length/overlap
- razor edits on group-leader tracks will be mirrored on all group-follower tracks
- don't open "grouping for selected tracks" dialog if no tracks are selected
- enable "selecting one item selects group" by default for new projects
- fix media item deselection with regular item groups
- increase size of media item group display border
- allow edge editing of offscreen grouped items
- mouse-copy affects grouped items regardless of item selection
- mouse modifier to toggle item selection respects grouping when selecting or deselecting
- right-click in grouping matrix opens group settings dialog for already-selected tracks, rather than auto-selecting tracks
- when setting/unsetting free item positioning, also modify grouped tracks
- prevent editing item if any grouped item is locked
- when "automatically group selected tracks for media/razor editing" and "mouse click/edit in arrange view changes track selection" both enabled, clicking on selected track will not deselect other tracks
- add actions and toolbar/TCP context menu options to automatically group all tracks, or selected tracks, for media/razor editing
- add actions to create track media/razor editing group from selected tracks, or remove selected tracks from group
- add actions to enable/disable individual track groups
- add buttons to track group settings dialog to open track group manager and grouping matrix
- add razor edit left-click mouse modifier to remove one area ignoring track grouping
- add theme element for auto-grouped track indicators
- support customizing track group colors
- Track/Region/Group Managers
- always select row on click
- only open dropdown lists and dialogs on double-click
- support resetting custom colors to default
- support setting items to random colors
- decrease margins for ease of use when docked
- prevent re-sorting list while editing

FX:
- add additional descriptions to auto-bypass-related compatibility settings
- chain window options for FX instance oversampling always show/apply for selected FX
- rename per-plugin-instance auto-bypass option to 'Force auto-bypass'
- slight reorganization of chain window menu

Mouse modifiers:
- add left-click modifiers to select item and move edit cursor ignoring grouping
- add media item left-click modifier to toggle item selection ignoring grouping
- set default media item shift+alt (shift+opt) click behavior to create razor edit area (useful when using track media/razor edit grouping)
- adjust item contents and left or right edge affect all selected/grouped items with edges that align
- edit item fade-in/fade-out with relative edge grouping only affects selected items, not grouped items (same behavior as item edge editing)

Razor edits:
- fix editing with ripple-all-tracks enabled
- fix some behaviors with "ripple-all affects tempo envelope" enabled
- fix behavior when moving razor edits on similar envelopes on contiguous tracks
- support razor edits on master track envelopes (except tempo envelope)

ReaScript:
- allow passing small integer values as KbdSectionInfo parameter to APIs as shorthand to access section by ID
- improve GetActionShortcutDesc Lua signature
- improve JSFX name matching in TrackFX_AddByName()
- support GetSetTrackGroupMembership() with "MEDIA_EDIT_LEAD" and "MEDIA_EDIT_FOLLOW"

Track Group Manager:
- add menu actions to add/remove selected tracks (note, action is incompatible with option to select tracks when selecting group)
- add option to display track dropdown list nested by folders
- add columns to show/hide groups in TCP and mixer
- add option to add/remove child tracks when adding/removing folder track to group

Actions:
- add action to view envelopes for last touched track/item
- deselect unaffected items when running action to split items
- improve description of action to force item spectrogram display

Batch converter:
- support multi-mono conversion, to split stereo or multichannel audio to multiple mono output files
- support $chid wildcard, replaced by channel number or description (C, L, R, LFE, etc)
- when splitting multichannel audio, append .c1, .c2, etc to output filenames unless $chid wildcard is supplied

Media items:
- add preference to arrange overlapping media items in the order they were created
- double-click on item volume knob affects all selected items
- fix free item positioning resize behavior

Render:
- fix minor memory leak after rendering
- large WAV file behavior for new users defaults to auto wav/RF64 rather than auto wav/wave64

Routing diagram:
- fix some hardware input/output UI quirks
- increase width of UI in response to localization
- Routing/Grouping/Render matrix
- dynamically adjust margins to fit text
- improve appearance of folder expand/collapse icons

Track Manager:
- add column to display track group membership, double-click to open track group settings dialog
- add column to expand/collapse folders
- add option to show/hide/group child tracks when showing/hiding/grouping folder track

Video:
- increase maximum parameter count to 40
- support scrollbar for processor knob bank
- use hidpi/retina drawing for processor knobs

VST:
- fix VST2-to-VST3 state migration
- remove VST3 input bus silenceFlags support (added in 6.71) due to poor plug-in support (REAPER feature to auto-bypass on silence is unaffected)

ARA:
- verify that pitch/tempo analysis is available before querying

Automation items:
- fix behavior of action to split items without changing selection

CLAP:
- quantize stepped parameters before updating plugin

Custom actions editor:
- improve support for very long action names on Windows

Free item positioning:
- allow editing FIPM position and height for multiple selected/grouped items at once

Grouping matrix:
- add option to show/hide flags in matrix

JSFX:
- fix potential editor crash when switching tabs

Localization:
- add some missing menu/toolbar names to language pack template

Master VU:
- fix RMS stereo loudness readout when RMS window length has been customized

Media explorer:
- fix possible noise at end of time selection playback

Normalize:
- remove arbitrary +60dB ceiling on normalization adjustment when rendering or batch converting

Notation editor:
- fix custom note notation action description

Peaks building:
- fix potential spectral peaks calculation crash on memory allocation failure

Region manager:
- when not displaying track dropdown list nested by folder, indent tracks in folders

Region/Marker Manager:
- fix display glitch when resizing

Tooltips:
- fix incorrect channel labels for mono-sourced sends/hardware outputs

Transport:
- use time signature when estimating tempo from time selection for tooltip

API:
- add FX NamedConfigParm chain_oversample_shift, chain_pdc_mode, instance_oversample_shift, force_auto_bypass