- crash when %%score with no common voices and next notes with beams
  - crash when new staff system with only new voices
  - crash when slash found before a bar and not a (deprecated) measure repeat
  - crash when %%staves at end of tune and lack of music in the last voice
  - bad parsing of the note durations
  - clash of some ties with dots
  - bad check of the number of measures in Z (multi-rest)
- changes
  - new improved coda sign
  - Make pkg-config substitutable for cross-compilations
  - add option tieheight factor to tie height like in slurheight
  - add some decorations from v2.2 standard