no, the date is correct, the date there only shows the date of the latest released version, so 0.97b shows the date of the 0.96. And the 0.97RC1 shows the date of when it got released itself (but it's not shown in SVN since 0.97RC1 is a release candidate, not a real release).
p.s.: If you really want to know the date of the current version you are using, then press Ctrl-Shift-C from the main window, in the console that opens up, type :
to get the date of the last modified file (applies only to tcl files, and if no files have been modified for a week, you will see last week's date, not the date of when you did the 'svn update'
You can also do :
to get the svn revision of the last modified tcl file...