MuseScore 3.1.0

What's new in this version:

New:
- Single-note dynamics playback - long notes can play dynamic changes
- Updated soundfont that supports single-note dynamics out of the box
- High quality soundfont with better strings and synth instruments available as an extension in the Resource Manager
- Option to completely disable Auto Placement
- Elements can cross staves still participating in Auto Placement
- Half-time/Double-time feature that shortens and lengthens rhythms on copy-pasting
- Linearization feature that unrolls all repeats
- Internal computational approach that allows creating 256th, 512th, 1024th notes and any kind of compound tuplets
- Online documentation for Plugin API is available

Improvements:
- Playback starts immediately on large scores
- Continuous view performance was significantly improved
- The layout of the scores imported from MuseScore 2 is now preserved
- Size and usability of Play Panel is now improved
- Add chord symbol support for fret diagrams
- Move the whole segment on dragging a note in edit mode
- Allow changing duration of multiple notes
- Select notes after deleting various elements
- Make copy-pasting hairpins possible
- Fix significant lag on iterating over notes with left-right arrows
- UI refinements including more streamlined Inspector
- "MuseScore File" string (under File -> Save As...) now indicates which version you are about to save (MuseScore 3)

Fixes:
- System positions calculations allocated too much space
- Courtesy clefs and key signatures were positioned incorrectly around repeat barlines
- Cross-staff notation was incorrect in some cases
- Barlines spanning was wrong in some cases
- Barlines were incorrect when small and standard staves were mixed
- Piano keyboard display didn't update when adding accidental using toolbar or palette
- Side panels became undockable after being undocked and closed once
- Could not add proper slur to grace notes when there were more than one
- Layout of small staves was incorrect in some cases
- Key signatures displayed incorrectly after clef change
- Grace notes (after) collided with accidentals on main note
- Key signature disappeared in all but first stave
- Note's dot's visibility was incorrect when toggling visibility with note and dot selected
- Couldn't pan score while playing when a note was selected
- Instrument Change didn't transpose
- Couldn't delete clef change at the start of a system
- Accent-staccato didn't work in default template
- Some properties were not kept on saving score
- Incorrect key/time signatures and clefs appeared in the score in specific cases
- User-modified barlines were not linking correctly between staves of a score, parts, and multimeasure rests
- Ties were laid out incorrectly in some cases
- Problems with layout of with beams, slurs, tuplets, and tremolo in cross-staff notation
- Sizes and positions of some elements were not scaling correctly for small staves
- Brackets didn't appear after section break
- Users were automatically logged out after 5 hours when using Save Online
- Phrasing in target measure was not cleared on copy-pasting
- ChordIdentifier Plugin didn't work with MuseScore 3