Issue #2640842 by heddn, quietone, juancasantito, JoshOrndorff: Make related file migration ID configurable in d6_cck_file

Issue #2818799 by claudiu.cristea: MigrateSkipRowException  being TRUE, does not skip silently as should

Issue #2784951 by Shashwat Purav, er.pushpinderrana: Comment contains a reference to a function that doesn't exist anymore

Issue #2807871 by phenaproxima, svendecabooter: Convert Book's Migrate source tests to new base class

Issue #2807855 by phenaproxima, maijs, svendecabooter: Convert Block's Migrate source tests to new base class

Issue #2807509 by phenaproxima, quietone: Convert Aggregator's Migrate source tests to new base class

Issue #2807905 by svendecabooter: Convert Menu_link_content's Migrate source tests to new base class

Issue #2817565 by Sam152: Bugs in ModerationStateFieldItemList mean it can never be used with a field formatter

Issue #2753741 by Wim Leers, dawehner, znerol: Page Cache caches all safe HTTP methods (GET+HEAD), but generates the same cache ID for either: add test coverage to prove this is correct

Issue #2527324 by Kartagis, naveenvalecha: The install message referencing insufficient PDO drivers links to the wrong documentation page

Issue #2603236 by dbazuin, Pepino710, lomasr, tomgilissen, criscom, alimac, yoroy, Sutharsan, ifrik, BarisW, YesCT, xjm: Improvement help text Recipient field

Issue #2409453 by quietone, phenaproxima, hussainweb, vprocessor, hosef, chx: Variable to config: statistics.settings [d7]

Issue #2702969 by andrewmacpherson: Module filter does not announce number of results for screenreader when Toolbar module is disabled

Issue #2795539 by Shashwat Purav, shashikant_chauhan: Punctuation issue for Place block module in hook_help

Issue #2809115 by petiar, Yogesh Pawar, maxocub: When migrating a multilingual D6 site, the overview page says that the translation upgrade path is missing

Issue #2672668 by jibran, malavya, msankhala, archunan, Wim Leers, willzyx, lokapujya: Page title with HTML tags shows HTML tags in shortcut label in the shortcut toolbar tray

Revert "Issue #2609252 by eiriksm, lokapujya, toncic92, Arla, chx, Berdir: Boolean field with #access FALSE cause EntityStorageException"

This reverts commit f4da7286.

Revert "Issue #2796581 by tim.plunkett, swentel, amateescu: Fields must store their region in entity displays"

This reverts commit 64f9bb95.

Revert "Issue #2809527 by tim.plunkett, Berdir: Add backwards compatibility layer for entity display default config that lacks 'region'"

This reverts commit dd6d5868.