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What's new in this version:

New:
- Option available in Preferences for playback of chord symbols
- Mid-staff instrument changes now do almost everything automatically (see [below](#instrument-changes))
- Support for Orca (Linux) screenreader
- Hairpins, voltas, and other lines now adapt anchor points when dragged
- Much more functional piano roll editor (see [below](#pre))
- Splash screen displays progress messages while loading MuseScore
- Diatonic pitch up/down (keep degree alterations) shortcuts
- Select Similar Elements: Same Beat
- New Score Wizard automatically numbers instruments
- Property for beam style of tremolo (all strokes attached to stem)
- Style for hiding brackets which span to a single staff when empty staves are hidden
- Properties and styles for measure number positioning, including centered and below staff
- Property and style for position of multimeasure rest numbers
- Property for fretboard diagram rotation

Improvements:
- Double-click a header, footer, or instrument name to access the dialog for editing it
- Score tabs can now be closed using mouse middle button
- tremolos, with and without stem
- Smooth scrolling during playback in Continuous view
- Various improvements to simplify searching and loading backup files
- Metric modulation for dotted eighth to quarter
- Automatic collision avoidance between rests and notes/rests in other voices
- Staff property to automatically merge rests between voices
- Allow selection of multiple similar items with shift+click
- Allow "repeating a note" by clicking a notehead then pressing "R" in normal mode
- Changes made in Preferences are applied significantly faster
- Style options to align chord symbols within systems
- More zoom controls
- Additional plugin capabilities
- Altered keyboard and mouse zoom precision and consistency
- Improved performance of applying preferences
- Chords playback is on by default (untick the "play" property to disable it)
- Adding notes to a tuplet now adds them with respect to the tuplet's space
- MuseScore 3 is now available as a Windows PortableApp
- Altered Shift+L/R for leading space while in edit mode upon notehead
- All symbols are now available for the plugins

Fixes:
- JACK audio/MIDI worked incorrectly on some platforms
- Loop playback skipped final rests in the last measure
- MIDI note-off events were not sent in some cases
- Undoing slur addition to a range only removed one slur
- Canceling a selection worked incorrectly in some cases
- macOS package was not notarized in Apple
- Various fixes for the text editing process
- Fixed an issue when hiding notes or rests in a voice > 1 causes stems/beams to flip in a bad and unexpected way
- Fixed an issue when two grace notes disabling vertical chord alignment (Maximum Shift Above)
- Fixed an issue when "maximum shift above" leading to layout weirdness if measure has rhythm slashes and rests
- Fixed an issue with inactive "Realize chord symbols" command
- Fixed an issue when key signature appears in multiple places on the single staff
- Fixed an issue with missing grid of measures in the "timeline" view
- Fixed an issue with appearing of empty dialog during the "Save Online"
- Fixed an crash during the drag & drop of volta in continuous view
- Brackets were displaced in Continuous View
- Nested tuplets in linked staves led to corruption
- Octave selection was inconsistent in note input mode
- Voices worked incorrectly in the parts dialog in some cases
- Misclicking when attempting to create a range selection caused the current selection to be lost
- On-screen rendering of synthetically emboldened fonts was broken in some cases
- Smooth scrolling worked wrong in Continuous view when dealing with repeats
- Saving Online a yet unsaved or uncompressed (mscx) file didn't work
- Fixed zoom-box 100% selection bug
- Fixed a bug with ignoring of blank lines at top of text elements
- Fixed an issue when cut/paste, drag/drop in Piano Roll Editor does not preserve NoteEvent values
- Fixed a playback of chord symbols attached to fret diagrams
- Fixed a note entry suggested position with no selection and last selected note in voice > 1
- Fixed a display of the bold and underlined texts
- Fixed the "Save Online" on AppImages