- Patch #1078176 by franz, agentrickard: block module renders blocks that are set to display on no pages.

- Patch #997918 by David_Rothstein: menu gets rebuilt continually during install and update (and menu system stores entire, out-of-date theme objects).

#126070 follow-up by David_Rothstein: Rollback of previous patch; needs discussion/deferrment until D8.

#126070 by RobRoy, JohnAlbin, manarth, et al: Fixed module_invoke('block', 'view', ...) doesn't return subject

#358437 follow-up by David_Rothstein, sun, chx: Disallow invalid text format IDs; force 0 and non-existant formats to NULL.

- Patch #735692 by JohnAlbin: unclear which themes blocks are edited - shown as secondary tabs without primary parents.

#655416 by casey, yoroy, BTMash, Bojhan, Gábor Hojtsy, sun, ksenzee, oseldman, jrguitar21, et al: 'Demonstrate block preview' should not open in the overlay, and should reflect the regions in the front-end theme.

- Patch #235673 by carlos8f, yched, swentel, redndahead, Damien Tournoud, pwolanin, dww: changes to block caching mode not caught.

- Patch #735662 by duellj, tstoeckler: critical bug: hook_form_alter() can easily clobber a text format.

- Patch #765860 by effulgentsia, dww, dereine, mikey_p, sun: make drupal_alter() support multiple alter hooks executed by module weight.

#368093 by emosbaugh, kirkage, naxoc, alexpott, et al: Fixed Block visibility settings are case sensitive.

#560746 follow-up by chx: Split hook_block_info_alter() into list_ and info_alter() and clean up block_rehash().

- Patch #91663 by sun, Berdir, swentel, blackdog, chx: permission of text format is not checked when editing an entity and instead reset to something a user can use.

- Patch #684774 by andypost, sun: critical bug: block visibility settings cannot be properly extended.

#556872 by Davy Van Den Bremt, pwolanin, sun, and eojthebrave: Fixed Action links do not work on all levels (example: 'add block' action link does not appear).

- Patch #503782 by skilip, Davy Van Den Bremt, eojthebrave, sign: not able to select region at block creation.

#414424 by sun, chx, Arancaytar, yched, et al: Introduce Form API #type 'text_format' for additional DX/security around rich text fields.

- Patch #691938 by carlos8f, mr.baileys: block caching per-role, per-user, per-page was broken. With new tests.

- Patch #691938 by carlos8f: block caching per-role, per-user, per-page was broken. Added block caching tests.

#678714 by effulgentsia: Unify use of theme hook / template suggestions, fix clobbering problems, and improve suggestion discovery performance.