-* As usual, when opening and saving a document that was created by a previous
- major version of LyX (in this case 2.1.x), the file format is changed to
- the new file format (in this case 2.2.x). What is different starting with
- 2.2.0 is that when we save a file that was not originally in the current LyX
- format, we create a backup of the original file. We put it in the backup
- directory, if one exists, otherwise in the directory the original file is
- in. This is the same strategy as for normal backups. This backup file can be
- helpful in case a bug in lyx2lyx caused data loss. For more information, see
- #9554.
+* Several ttf fonts (esint10.ttf, stmary10.ttf, wasy10.ttf) were changed
+ to reflect the fact that newer Qt libraries do not support displaying certain
+ codepoints anymore (bug #8493, #10161).
+ Distribution packagers need to repack those font files in case they are
+ delivering the fonts as a separated package dependent from core LyX.