Issue #2091411 by damiankloip, dawehner: Provide an easier mechanism for a route definition wrapped by module_exists().
Issue #2077473 by dawehner, damiankloip, pwolanin: Replace local action plugin discovery with YamlDiscovery and handle routes with parameters.
Issue #2083785 by Berdir, yched, das-peter: Add support for determining which field properties are cacheable.
Issue #2095249 by mcjim: Change description text for admin/config/system/site-information to remove 'number of posts per page'.
Issue #2095223 by pwolanin, tim.plunkett: Remove t() from LocalTaskDefault now that it's in PluginBase.
Issue #2095271 by Gábor Hojtsy, tim.plunkett, YesCT: Add default tabs for routes expected by config_translation().
Issue #1987390 by drupalninja99, mdrummond, Cottser, joelpittet, vinmassaro, azinoman, gnugeti, carsonevans, ezeedub: Aggregator.module - Convert theme_ functions to Twig.
Issue #2010118 by mgifford: Fixed Busted link in inline code .
Issue #2079315 by mondrake: Fixed Image style editing leads to redundant watchdog entries.
Issue #2002650 by mrsinguyen, chertzog, legolasbo, Erik Erskine, rhm50, sandergo90, grisendo, targoo, janstoeckler, maximpodorov, beowulf1416: Improve maintainability by removing unused local variables.
Issue #2099261 by JulienD, mr.baileys, amateescu: Fixed field_help() no longer lists field_type()/widget modules and can throw undefined index notice.
Issue #1824848 by spearhead93, catch, mtift: Remove drupal_js_version_string() variable (instead of converting it).
Issue #2067119 by pameeela, longwave, tstoeckler, Wim Leers: Fixed 'width' and 'height' HTML placeholder attributes in image dialog are not translated, yet should be lcfirst.
Issue #2076847 by zero2one, larowlan, Wim Leers, socketwench, mr.baileys: Fixed FilterHtmlImageSecure incorrectly flags images coming from site URLs with ports in them as insecure.
Issue #2096855 by zero2one: Fixed FilterHtmlImageSecure does not support images with spaces in the filename.
Issue #2080057 by guregori, drupal_sensei: Fixed assertion in NodeFormButtonsTest.php.
Issue #2096135 by dawehner, longwave: Fixed PathProcessorAlias ignore 'alias' => TRUE.
Issue #2099977 by andypost: Add andypost as a component maintainer for comment.module.
Issue #2083773 by Pete B: Fixed SearchExcerpt test has a small problem.
Issue #1939102 by Cottser, joelpittet, gnuget, mikl: Convert theme_indentation() to Twig.