+@item
+It is now possible to move systems with reference to their current
+position using the @code{extra-offset} subproperty of
+@code{NonMusicalPaperColumn.line-break-system-details}. Both vertical
+and horizontal changes are possible. This feature is especially useful
+for making slight adjustments to the default vertical position of
+individual systems. See @ruser{Explicit staff and system positioning} for
+more information.
+
+@item
+It is now possible to add text to analysis brackets through the
+@code{HorizontalBracketText} object.
+@lilypond[quote,verbatim]
+\layout {
+ \context {
+ \Voice
+ \consists "Horizontal_bracket_engraver"
+ }
+}
+
+{
+ \once \override HorizontalBracketText.text = "a"
+ c''\startGroup d''\stopGroup
+ e''-\tweak HorizontalBracketText.text "a'" \startGroup d''\stopGroup
+}
+@end lilypond
+
+@item
+The ends of hairpins may now be fine-tuned using the @code{shorten-pair}
+grob property, which previously only affected text-spanners like
+@code{TupletBracket} and @code{OttavaBracket}. Positive values offset
+to the right, negative to the left.
+@lilypond[quote,verbatim]
+{ \once \override Hairpin.shorten-pair = #'(2 . 2)
+ c'1~\<
+ c'2~ c'\!
+ \once \override Hairpin.shorten-pair = #'(-2 . -2)
+ c'1~\<
+ c'2~ c'\! }
+@end lilypond
+
+@item
+In fret-diagrams the distance between frets and the distance between strings is
+now independently adjustable. Available are @code{fret-distance} and
+@code{string-distance} as subproperties of @code{fret-diagram-details}.
+@lilypond[verbatim,quote]
+fretMrkp = \markup { \fret-diagram-terse #"x;x;o;2;3;2;" }
+
+\markuplist
+\override #'(padding . 2)
+\table #'(0 -1) {
+ "default"
+
+ \fretMrkp
+
+ "fret-distance"
+
+ \override #'(fret-diagram-details . ((fret-distance . 2)))
+ \fretMrkp
+
+ "string-distance"
+
+ \override #'(fret-diagram-details . ((string-distance . 2)))
+ \fretMrkp
+}
+@end lilypond
+
+@item
+Accidental rules can now be defined across @code{ChoirStaff} contexts.
+Two new rules @code{choral} and @code{choral-cautionary} are available
+that combine the characteristics of @code{modern-voice} and @code{piano}
+or their equivalents with cautionary accidentals.
+
+@item
+The music function @code{\unfoldRepeats} can now take an
+optional argument-list specifying which type(s) of repeated music
+should be unfolded. Possible entries are @code{percent}, @code{tremolo},
+@code{volta}.
+If the optional argument-list is unspecified, @code{repeated-music} will be
+used, unfolding all.
+
+@item
+A new @code{output-attributes} grob property is now used for svg output
+instead of the @code{id} grob property. It allows multiple attributes
+to be defined as an association list. For example, @code{#'((id . 123)
+(class . foo) (data-whatever . @qq{bar}))} will produce the following
+group tag in an SVG file: @code{<g id=@qq{123} class=@qq{foo}
+data-whatever=@qq{bar}> @dots{} </g>}.
+
+@item
+Slurs and phrasing slurs may now be started from individual notes
+in a chord. Several simultanous slurs per @code{Voice} need to be
+distinguished by @code{spanner-id} setting.
+
+@item
+The music and grob property @code{spanner-id} for distinguishing
+simultaneous slurs and phrasing slurs has been changed from a
+string to a @q{key}, a non-negative integer or symbol.
+
+@item
+There is a new command @code{\=} for specifying the
+@code{spanner-id} for simultaneous slurs and phrasing slurs.
+@lilypond[verbatim,quote]
+\fixed c' {
+ <c~ f\=1( g\=2( >2 <c e\=1) a\=2) >
+}
+@end lilypond
+
+@item
+Blocks introduced with @code{\header} can be stored in variables
+and used as arguments to music and scheme functions and as the
+body of @code{#@{@dots{}#@}} constructs. They are represented as
+a Guile module.
+
+While @code{\book}, @code{\bookpart}, @code{\score}, @code{\with},
+@code{\layout}, @code{\midi}, @code{\paper} blocks can be passed
+around in similar manner, they are represented by different data
+types.
+
+@item
+Dot-separated symbol lists like @code{FretBoard.stencil} were
+already supported as of version@tie{}2.18. They may now also
+contain unsigned integers, and may alternatively be separated by
+commata. This allows usage such as
+@lilypond[quote,verbatim]
+{ \time 2,2,1 5/8 g'8 8 8 8 8 }
+@end lilypond
+and
+@example
+\tagGroup violin,oboe,bassoon
+@end example
+
+@item
+Such lists may also be used in expressions for assignments, sets,
+and overrides. This allows usage such as
+@lilypond[quote,verbatim]
+{ \unset Timing.beamExceptions
+ \set Timing.beatStructure = 1,2,1
+ g'8 8 8 8 8 8 8 8 }
+@end lilypond
+
+@item
+Association list elements could previously be assigned values
+individually (for example, paper variables like
+@code{system-system-spacing.basic-distance}). They may now be
+also referenced in this manner, as with
+@example
+\paper @{
+ \void \displayScheme \system-system-spacing.basic-distance
+@}
+@end example
+
+In combination with the previously mentioned changes, this allows
+setting and referencing pseudovariables like @code{violin.1}.
+