drupal 8.3.6

This is a patch release of Drupal 8 and is ready for use on production sites. See the CHANGELOG.txt for a summary of changes and improvements since the last minor release. Learn more about Drupal 8.

This release only contains bug fixes, along with documentation and testing improvements. Translators should take note of a handful of minor string changes since the last release.

The following important issues are resolved in 8.3.6 (in addition to the dozens of other fixes listed at the end of this post):

• #2897576: Resaving a view display results in deletion of view display

Changes to the update process since Drupal 8.2.3

Beginning with 8.2.3, packaged Drupal releases no longer contain development PHP libraries. See Drupal 8 will no longer include dev dependencies in release packages for more information. See core/UPDATE.txt in the Drupal download for full instructions on how to update.

Known issues

There are no known regressions in this release.

Updating from versions older than 8.3.0

We've received reports of the following issues with the 8.3.0 release that may affect those updating from older versions of Drupal 8:

• A few sites have reported #2869449: PluginNotFound exception after update to Drupal 8.3 where the plugin name mentioned in the exception may vary. Administrators of affected sites should check the issue queues of contributed modules in use. Comment on #2869449 if necessary.
• Sites that have the HAL module enabled and are upgrading from 8.1.x have encountered #2867444: Configuration schema errors whilst updating to 8.3.0. Possible workarounds include updating to 8.2.7 first and then to 8.3.0, or (for sites using Drush) updating to Drush 8.1.10. (Note that 8.1.x has been end-of-life since September 2016, so we generally do not provide full support for updates that skip minor releases.)

File usage tracking causes unexpected file deletion

Drupal 8 currently has a number of known issues related to incorrect tracking of file usage, which can result in files being unexpectedly deleted from a site. Site owners experiencing unexplained file loss should consider setting "Delete orphaned files" to "Never" on /admin/config/media/file-system until these issues are resolved, and note the following issues:

• #2801777: Give users the option to prevent Drupal from automatically marking unused files as temporary
• #2708411: File usage not incremented when adding new translation
• #1239558: Deleting a node with revisions does not release file usage
• #2810355: Images lost when changing node language
• #2884025: Uploading a managed file on a custom form that allows multiple files also triggers the remove button which results in a duplicate temporary record and results in the file being deleted

Search the issue queue for all known issues.

Changes since 8.3.5:

• #2896960 by tedbow, Wim Leers: Updated inline docs for data-off-canvas-main-canvas in twig template
• #2897306 by Wim Leers, tedbow: Remove dead CSS
• #2891911 by vaplas: Random fail in Drupal\Tests\locale\Functional\LocaleTranslationUiTest::testStringTranslation
• #2897576 by Lendude, Ismaels: Resaving a view display results in deletion of view display
• #2879512 by bkosborne: Path aliases can be forgotten after a cache rebuild due to race condition in CacheCollector
• Revert "Issue #2891911 by vaplas: Random fail in Drupal\Tests\locale\Functional\LocaleTranslationUiTest::testStringTranslation"
• #2894427 by yoroy, tedbow, Wim Leers: White toolbar background when in edit mode is distracting and not pretty
• #2896143 by tedbow, Wim Leers, DyanneNova: Unintentional animation of the body while Settings Tray is installed
• #2896063 by timmillwood, Sam152: Add a workflows.module component to drupal issue queue and MAINTAINERS.txt
• Revert "Issue #2801777 by Berdir, Wim Leers, Pol, alexpott, dawehner, Jo Fitzgerald, Munavijayalakshmi, poornima.n, ifrik, Bojhan, catch: Prevent drupal from deleting temporary files"
• #2801777 by Berdir, Wim Leers, Pol, alexpott, dawehner, Jo Fitzgerald, Munavijayalakshmi, poornima.n, ifrik, Bojhan, catch: Prevent drupal from deleting temporary files
• #2892469 by shashikant_chauhan: deprecation notice for entity_get_form_display() is badly formatted and doens't display properly on api site
• #2883483 by tedbow, Wim Leers: Assert that calls to waitForElementVisible() actually return element in OutsideIn javascript tests
• #2541228 by amateescu, g089h515r806, Berdir, pawel_r: FieldConfigBase::setPropertyConstraints() and addPropertyConstraints() are broken
• #2882729 by tedbow, tim.plunkett, Bojhan: In off-canvas block form hide Title input unless it will be displayed and change label to Block Title
• Removing Larry Garfield from technical leadership positions.
• Revert "Issue #2892942 by Chi: Contextual links support options but not use them to generate links"
• #2892942 by Chi: Contextual links support options but not use them to generate links
• #2893371 by Mile23: Several methods theoretically added to TestInfoParsingTest were actually not
• #2891784 by FeyP: Use correct class name for EventDispatcherInterface in Events API documentation
• #2873782 by Jo Fitzgerald, Dinesh18, vrwired: Add Change record to @deprecated for MigrateCckFieldPluginManagerInterface