You can view an interactive list of fixes in Delphi 2010 and C++Builder 2010 for user reported issues at:

http://qc.embarcadero.com/wc/qcmain.aspx?search=1&stat=30&res=10&rib=14

The list includes bugs that were reported by users via the QualityCentral system. Additional issues identified by our QA team and reported in our internal system have also been fixed in the 2010 versions.

You can also download PDF versions of the bug fix lists to more easily search the full text of the descriptions:

QualityCentral reported bugs fixed in Delphi 2010

QualityCentral reported bugs fixed in C++Builder 2010