Un copié-collé de l'édition anglaise:
MuseScore 2.0 will represent the culmination of the past four years of development effort, beginning even before the release of MuseScore 1.0 in 2011. We knew that implementing all of the new features that we were planning for the next major release was such a big undertaking that it would take a long time to get right, so we kept this work separate from that of the 1.0, 1.1. 1.2, and 1.3 releases. While the 1.X releases introduced just incremental changes over the past four years, we think you will be "wowed" by all that is new with MuseScore 2.0.
Here are some of the major changes you will find in MuseScore 2.0 Beta 1:
Linked parts - changes in score automatically reflect in parts and vice versa
Continuous view - scroll horizontally through your score with no line or page breaks
Tablature - variety of tab notation styles for guitar, bass, lute, and more
Fret diagrams - easily create diagrams and set up your own palette of commonly used chords
Flexible chord symbols - enter chord symbols using any common spellings, including support for German and solfege note naming and lower case minor chords
Dynamic text styles - changes automatically apply to all elements with that style
More supported notations - support for Steinberg's new open source Bravura music font, more flexible time signatures, pedal change markings, grace notes after (trill endings), falls/doits/scoops/plops/bends, bagpipe embellishments, figured bass, ambitus, early music notations, and a huge set of additional music symbols from Bravura
Layout improvements - automatic correct positioning and spacing for multi-voice chords and rests, dots, accidentals, ties, articulations, hairpins, pedal markings, voltas, etc.
Score management facilities - create scores of multiple movements, combine scores into albums, define and apply custom score styles, select default styles for scores and for parts
Playback improvements - new and more realistic soundfont, mid-score instrument changes, playback of more score markings, flexible swing style, improved JACK support for interoperability with other MIDI and audio programs
MIDI import improvements - automatic simplification of rhythms, handling of multiple voices
MusicXML import/export improvements - greater compatibility with other applications, ability to control degree of layout preserved
Guitar Pro import - supports GP3, GP4, GP5, and GPX formats
Usability improvements - repitch mode, on-screen piano keyboard for note entry, element inspector window, more precise manual adjustments, easier selection of instruments, simpler and more powerful page layout, copy/paste improvements, split and join measures, screenshot mode for creating graphical excerpts, customizable palettes and workspaces, expanded availability of keyboard shortcuts
And lots more!