Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
The GUI on Mac OS X 10.5 and 10.6 was fixed. Dozens of bugfixes were backported from the unstable development version. It is recommended that all users upgrade to this version. This is the last planned release in the 2.12 stable series.
A new page breaking algorithm will tune both
horizontal and vertical spacing. Hence, page turns
will only fall at rests or places that you mark
explicitly. Internal rewrites were done that make
it possible to output a much simpler intermediate
format. In the long term, this will enable other
programs to read LilyPond music. The release also
includes support for falls and doits, dashed
barlines, al niente hairpins, right hand
fingerings for guitar, better formatting of tied
chords, automatic beaming, and nested tuplets.
The newest version adds three major typographical
improvements. First, page layout has been improved
with options to tune vertical spacing per system,
to set the total number of systems, and to
visualize page parameters. Second, algorithmic
notation buffs will love the new exact
proportional spacing, where mixed exotic rhythms
and nested tuplets still produce mathematically
consistent spacing. Third, the tied chord
formatting was greatly improved, and each
offending tie configuration can be overridden.
LilyPond now installs easily on Windows, MacOS X,
and any version of Linux. Pango text formatting
lets you print Unicode lyrics in your favorite
script and font. It now also creates SVG files,
which you can edit in Inkscape. In addition, there
are many more small improvements.