The list of changes is here: http://jcp.org/aboutJava/communityprocess/maintenance/jsr315/servlet3-mr-reva.html There are 20 changes that need to be checked / made.
No changes required for items: 1, 4, 16-19 Changes required and applied to trunk and 7.0.x for: 2, 3 Not yet assessed 5-15, 20.
Changes required for and applied to trunk and 7.0.x for item 5. Items 6-15, 20 still be to assessed.
Item 6 does not appear to have resulted in a change to section 8.2.2 so no changes required. Item 7. Tomcat 7 already processes annotations prior to merging web-fragments so no changes required. Items 8 & 9. Tomcat 7 already merges fragments and and main web.xml this way so no changes required. Item 10. Tomcat 7 already merges servlet mappings this way so no changes required. Item 11. Tomcat 7 already merges filter mappings this way so no changes required. Not yet assessed: 12-15, 20
Changes required and applied to trunk and 7.0.x for item 12. Items 13-15, 20 still to be assessed.
Changes required and applied to trunk and 7.0.x for item 12. Items 14-15, 20 still to be assessed.
Items 14 and 15: no changes required. Only item 20 left to check.
Changes made for item 20. All items now reviewed and changes made were required.