Issue #2878556 by plach, matsbla, vijaycs85, Gábor Hojtsy, catch, gabesullice, effulgentsia, hchonov, hass, amateescu, xjm: Ensure that changes to untranslatable fields affect only one translation in pending revisions

(cherry picked from commit 27c3b40e)

Issue #2919373 by tedbow, Wim Leers, Adita, webchick, Berdir, drpal, xjm, samuel.mortenson, bircher: Prevent Settings Tray functionality for blocks that have configuration overrides

(cherry picked from commit 4e66ea20)

Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created

(cherry picked from commit 49c6761b)

Issue #2937889 by larowlan, Sam152: Regression: LinkWidget no longer supports base fields with optional title

Issue #2927746 by alexpott, catch, slasher13, mpdonadio, martin107, RoSk0, jibran, larowlan, pounard, Mile23, Jo Fitzgerald, deviantintegral, pritish.kumar: Update Symfony components to 3.4.*

(cherry picked from commit 47c2dda6)

Revert "Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created"

This reverts commit 9182b216.

Issue #2936793 by tim.plunkett, tstoeckler, EclipseGc: EntityReferenceItem::generateSampleValue() should create a sample entity if a referenceable entity is not found

(cherry picked from commit f724db34)

Issue #2935779 by tim.plunkett, EclipseGc, webchick, xjm, dead_arm: Come up with an affordance for what parts of the page are/are not affected by Layout Builder

(cherry picked from commit c5c96bf3)

Issue #2902187 by amateescu, timmillwood, Sam152, webchick, Manuel Garcia, xjm, plach, DuneBL, larowlan, Bojhan, jibran, Berdir, jojototh: Provide a way for users to moderate content

(cherry picked from commit 8eac2a1d)

Issue #2936457 by Berdir, larowlan: views_post_update_filter_placeholder_text() can result in errors in filter plugins due to incomplete definition

(cherry picked from commit 59a12084)

Issue #2862422 by chr.fritsch, robpowell, phenaproxima, webflo, bdimaggio, seanB, naveenvalecha, sunset_bill, vijaycs85, yoroy, starshaped, xjm, Berdir, hazong: Add per-media type creation permissions for media

(cherry picked from commit 4443678c)

Issue #2858482 by Wim Leers, dawehner, benjy, larowlan, tedbow, borisson_: Simplify REST routing: disallow requesting POST/PATCH in any format, make consistent

(cherry picked from commit b4a02309)

Issue #2914974 by quietone, rakesh.gectcr, maxocub, heddn, Jo Fitzgerald, Yogesh Pawar, masipila, phenaproxima, jhodgdon, Gábor Hojtsy, larowlan, neclimdul: Migrate UI - handle sources that do not need an upgrade

(cherry picked from commit 5fcde4a7)

Issue #2936435 by Berdir, alexpott: Better BC for deprecated container parameter user.tempstore.expire

(cherry picked from commit 0325ab60)

Issue #2885469 by Wim Leers, amateescu, timmillwood, alexpott, tstoeckler, xjm, remram, Berdir, dawehner, larowlan, samuel.mortenson: Regression: manually setting the ID field for newly-created content entities is not possible anymore (public follow-up to SA-2017-002)

(cherry picked from commit 4fbf9977)

Issue #2862041 by Sam152, amateescu, timmillwood, jibran, hamrant, dawehner, plach, Manuel Garcia, Jo Fitzgerald, mgalalm, xjm, larowlan, webchick, Wim Leers, gambry, kkus, tim.plunkett, tedbow, CatherineOmega: Provide useful Views filters for Content Moderation State fields

(cherry picked from commit 418e4991)

Issue #2862748 by masipila, Jo Fitzgerald, quietone, phenaproxima: Add documentation to EntityRevision destination plugin

Issue #2933773 by masipila, quietone: Merge handbook documentation to API: skip_on_empty process plugin

Issue #2933776 by masipila, quietone: Merge handbook documentation to API: sub_process process plugin

Issue #2933770 by masipila, quietone, phenaproxima: Merge handbook documentation to API: static_map process plugin

(cherry picked from commit 45662bb9)

Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created

(cherry picked from commit 49c6761b)

Issue #2934178 by samuel.mortenson, DyanneNova, xjm, yoroy, andrewmacpherson: Contrast issues with off-canvas dialog styling

(cherry picked from commit b0542ce0)

Issue #2921626 by tim.plunkett, EclipseGc, larowlan, dead_arm, xjm: Add proper context-awareness to Layout Builder

(cherry picked from commit 6f97c28c)

Revert "Issue #2921626 by tim.plunkett, EclipseGc, larowlan, dead_arm: Add proper context-awareness to Layout Builder"

This reverts commit 749f41ff.

Issue #2924724 by plach, hchonov, timmillwood, Gábor Hojtsy, amateescu, gabesullice, catch: Add an API to create a new revision correctly handling multilingual pending revisions

Issue #2921626 by tim.plunkett, EclipseGc, larowlan, dead_arm: Add proper context-awareness to Layout Builder

Issue #2918837 by heddn, neclimdul, phenaproxima, quietone, Gábor Hojtsy: SqlBase throws fatal error when extended directly

Issue #2934885 by marcoscano, benjifisher, seanB, starshaped, xjm, chr.fritsch, phenaproxima, Gábor Hojtsy: Document the difference between File, Image, and Media fields

Issue #2866819 by harsha012, jpassetti, joelpittet: Update stylelint rule number-no-trailing-zeros to be consistent with Drupal's CSS standards

Issue #2920172 by sushantpaste, dev.patrick, Ashreen Kaur, yoroy, xjm: User Guide link on front page in new Install should  open in new tab

Issue #2883892 by Jo Fitzgerald, voleger, ozin, mpdonadio, Taran2L, heddn: Add from/to timezone settings for the "FormatDate process plugin"

Issue #2908282 by heddn, phenaproxima, Jo Fitzgerald, quietone, xjm, larowlan, mikeryan, dipakmdhrm: Throw exception for source plugins without a source_module property

Issue #2862662 by masipila, Jo Fitzgerald, heddn, quietone, ohthehugemanatee: Add documentation to EntityContentBase destination plugin

Issue #2930832 by phenaproxima, heddn, larowlan, quietone: Add isAuditable() method to MigrationInterface

Issue #2912803 by Jo Fitzgerald, heddn: MigrationPluginManagerInterface is missing createInstancesByTag