[$] The rest of the 6.11 merge window

The release of 6.11-rc1marked the end of the 6.11 merge window on July28. By that time,12,102 non-merge changesets had been pulled into the mainline repository;about 8,000 of those came in after thefirst-half summary was written. Quite a few significant changes wereto be found in those changesets; there is also one big change that did notmake it.