Miscellaneous improvements

• The new commands \startGradualTempoChange and \stopGradualTempoChange describe a temporary departure from the prevailing tempo. Currently, these affect only MIDI output.
• These functions, which have been deprecated since version 2.13.19, have been removed: \deprecatedcresc, \deprecatedendcresc, \deprecateddim, and \deprecatedenddim.

For older news, go to https://lilypond.org/doc/v2.22/Documentation/changes/, or go back to the Documentation index.