Adobe have announced the transition of their SVG
viewer into beta release phase, adding support for the
most recent SVG specification.
Other new features include an auto-update function,
export of Type 1 and TrueType fonts, and support of
image/svg-xml for SVG's media type.
A full list of changes and supported features is
available from Adobe's web site (this page is
very comprehensive, but is also very large!).