The binding to "C-plus" has changed to "C-S-asterisk".
-New external programs and libaries:
------------------------------------
+New external programs and libraries:
+------------------------------------
LyX 2.0 introduces support for some new external helper programs/libraries,
while the support for some existing programs has been dropped. This
4.) INSTANT PREVIEW:
Make sure that dv2dt (often part of LaTeX distributions) is installed
-on your system.
+on your system. Instant preview wil be disabled if dv2dt is not found.
Known issues in version 2.0.0