REAPER 5.70

What's new in this version:

Tempo envelope:
- allow points to set time signature and/or metronome pattern without changing tempo
- enable freehand draw (always snaps drawn points to beat, though)
- fix actions to move points up/down, envelope control panel scroll
- fix behavior when duplicate tempo envelope points exist
- improve behavior when tempo envelope contains markers with "allow partial measure before this marker" enabled
- fix actions to move points left/right
- inserting the first tempo change no longer defaults to linear transition mode
- fix "ripple-all affects tempo envelope" option, independent of "envelope points move with media items" option

Automation:
- copy automation item mute state when duplicating regions
- always remove points from underlying envelope when creating automation items
- monitor existing automation items when writing into an automation item
- option to trim content behind automation items when editing also trims when writing automation
- write into selected automation items only
- trim overlapping automation items on actions to write current value to envelope and create a new automation item

Ruler:
- allow expanding the ruler to display multiple lanes
- add actions to display regions, markers, tempo/time signature changes in lanes (or constrain to a single lane)
- add option to display tempo and time signature changes in separate lanes, or hide them completely
- control+alt+drag on tempo markers adjusts tempo on both sides of marker
- display tempo/time signature changes more like a ruler, less like markers
- add mouse modifier contexts for tempo/time signature markers, project regions, project markers

FX:
- support developer and VST3 category listings in Add FX window
- display and order FX quick-add menu according to Add FX window preferences
- optimize/improve TCP/MCP quick-add menu organization
- cache JSFX lists, clear cache on refresh in Add FX window

macOS:
- autodetect and use customized system open file descriptor limit
- improve disk image window initial size on 10.13
- notify Audio Units plug-ins of offline rendering

Regions:
- improve edits to overlapping regions
- improve tempo envelope behavior when moving and copying regions
- support dual edge editing

Stretch markers:
- avoid hangs with invalid stretch marker data
- improve loop indicator drawing

Theme loading:
- fix toolbar button background preview for zipped themes
- increase maximum zipped file count from 2048 to 8192

Video:
- restore floating size for video processor FX windows
- allow NUL characters in literal strings in video processors

VST:
- ignore various notifications immediately after loading VST2 state
- support TrackFX_GetNamedConfigParm() with GainReduction_dB to retrieve the current GR from plug-ins that support the Presonus GR API

Arrange:
- do not allow pencil drawing in collapsed tracks

Fades:
- improve behavior of crossfade shape actions

FLAC:
- update to FLAC 1.3.2

Groups:
- support up to 64 track groups per project

JSFX:
- allow NUL characters in literal strings

MIDI editor:
- add actions to move cursor to start/end of measure

mp3 decoder:
- use .reapindex for files 12MB or larger (previously was 64MB)

OSC:
- support bidirectional communication modes

Preferences:
- add option to display/hide arrange view gridlines for project regions/markers and/or time signature changes

ReaComp:
- support TrackFX_GetNamedConfigParm(GainReduction_dB)

ReaScript:
- allow NUL characters in literal strings in EEL

Render:
- clear "all tracks" in region render matrix when removing track via API

Undo:
- include time selection in marquee undo points