Issue #2826047 by heddn, Jo Fitzgerald, mikeryan, catch, alexpott: 6-8 user picture migration must create new fids, which can conflict with fids used by other migrations

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2557557 by erozqba, quietone, cebasqueira, phenaproxima: Move old CCK assertions into MigrateNodeTest

Issue #2746293 by maxocub, Gábor Hojtsy, penyaskito: Migrate content_translation_source when migrating node translations

Issue #2225775 by vasi, quietone, phenaproxima, chx, penyaskito, mikeryan, esclapes, vprocessor, steinmb, Gábor Hojtsy, Marc Angles, bwinett: Migrate Drupal 6 core node translation to Drupal 8

Issue #2698083 by quietone, Sam152, Mac_Weber, vasi: D6->D8: Migrating links without leading slash leads to fatal error

Issue #2718583 by alexpott: Remove deprecated usages of Node::setRevisionAuthorId() and Node::getRevisionAuthor()

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2625696 by chx, benjy, alexpott, catch, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities

Revert "Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities"

This reverts commit 694994fe.

Issue #2613878 by edysmp, heddn, Adita, Lord_of_Codes, jian he, chx, miiimooo, alexpott, benjy, mikeryan: Use hash for Migration source keys, rather than verbatim values

Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities

Issue #2514212 by Berdir, tduong, chx: Entity::getEntity() does not correctly deal with an existing ID mapping without a destination ID

Issue #2557253 by phenaproxima, neclimdul: MigrateFullDrupalTestBase test discovery gobbles all the memory

Issue #2349819 by amateescu, swentel, Leksat, larowlan, dawehner, Gábor Hojtsy, mpdonadio, benjy, jmuzz, yched, jibran, marthinal, dmsmidt: String field type doesn't consider empty string as empty value

Issue #2306049 by ultimike, benjy, hussainweb: Fixed D6->D8 node migration - Handle nodes with format = 0 ?.

Issue #2333357 by tstoeckler, benjy: Fixed Migrate node_revisions.timestamp into the revision_timestamp field.

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #2121299 by andypost, bdone, benjy, penyaskito, chx, claudiu.cristea, damiankloip, gregboggs, InternetDevels, jessehs, jhedstrom, marvil07, mikeryan, pcambra, Xano, YesCT, axoplasm, kgoel, dclavain, jeckman, alvar0hurtad0, Drupali, fastangel, gloob, jhedstrom, joshtaylor, mpgeek, alexpott: Migrate Drupal 6 to Drupal 8