As previously noted, any change to the configuration of the structure
pane collapses it again. I've also observed the following:
The structure view options are cleared to their default settings every
time I switch tabs in the editor.
Some of the setting appear to have their sense reversed. For instance,
non-public members are shown when the "show non-public" option is NOT
highlighted. The same is true for "show inherited members".
Previously, when "show Methods by defining type" was selected, the
defining types were grouped at the top of the listing. Now they are
Previous, attributes were grouped below methods; now they either appear
in alphabetical order (if that option is selected) or ahead of methods.
I haven't had time to file a bug report (and I'm not quite sure I know
where to file a bug report now). But I certainly hope these changes are
in fact viewed as regressions.