Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1167144 by chx, catch, claudiu.cristea: Make cache backends responsible for their own storage.

Issue #1919910 by larowlan: Refactor custom_block() upgrade path to create tables using hook_schema_0() instead of in block_update_N().

Issue #1317884 by reglogge, kathyh, izus, YesCT, smiletrl: Fixed Remove all instances of <none>, <Hidden> and <br/> from translatable strings because they lead to import errors.

Issue #1535868 by EclipseGc, tim.plunkett, xjm, Jody Lynn, sdboyer, naxoc, tizzo, effulgentsia, dawehner, disasm, beejeebus: Convert all blocks into plugins.

Issue #347988 by sun, Berdir, dawehner, Damien Tournoud, moshe weitzman: Move $user->data into own table.

Issue #1608842 by chx, alexpott, sun, effulgentsia, beejeebus, tim.plunkett et al: Replace list of bootstrap modules, enabled modules, enabled themes, and default theme with config.

Issue #466576 by gagarine, jackbravo, tim.plunkett, sheise, jamesm6162: Increase Block Title Length.

- Patch #135464 by Artusamak, Gábor Hojtsy, brantwynn, YesCT, z.stolar: add language options to block visibility.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

port system_performance_settings() to use CMI. in the process, introduce a ->get() and ->set() on DrupalConfig, so that we can look up nested keys by expanding from the '.' character.

Issue #918808 by moshe weitzman, Damien Tournoud, dww: Standardize block cache as a drupal_render() #cache.

- Patch #1097100 by quicksketch, boombatower, claar: remove all 7xxx update functions and tests (D6 to D7 upgrade path).

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

#838438 by Damien Tournoud, chx: Added basic tests for D6 => D7 upgrade path, and framework for further extending upgrade test coverage. W00t! :D

- Patch #690746 by jbrown, Ognyan Kulev, Crell, MichaelCole, Damien Tournoud: text column type doesn't reliably hold serialized variables.

- Patch #692044 by Damien Tournoud, effulgentsia, jbrown: a site with statistics module enabled is much slower in serving cached pages in D7 than in D6.

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

#211182 by Damien Tournoud, David_Rothstein, clemens.tolboom, scor, hunmonk, et al: Allow updates to specify dependencies to ensure they run in a predictable order.

- Patch #502190 by jhodgdon, stella, sun: hook implementation headers out of compliance with standards.

- Patch #306151 by agentrickard, David_Rothstein, Dave Reid, dbabbage, moshe weitzman: automatically install/uninstall schema.