since we use rubric in our core tools, I see some major regressions:

16706 TextModel with Rubric Widgets don't update TextModels selection
16705 select text with mouse press and drag does not update the selections start position
16497 debugger "Run to here" does not work anymore
16612 Rubric duplication of Morphs is broken
16866 DiffMorph with pretty print enabled wrongly shows diff markers for unformatted text
16867 pretty print in NewVersionBrowser sometimes raises an exception
16020 Syntax Highlighting Rubric: First shows non-highlighted text, then color. Looks slow

This is not a complain (rubric is much more powerful), just asking for some help.