Issue #3219472 by quietone, Abhishek_Singh, karishmaamin, longwave, smustgrave, xjm: Fix spelling for words used once, beginning with 'e' -> 'i', inclusive

Issue #3060225 by clepson, branimirpetkov: docs summary for BubbleableMetadata::merge() could be clearer

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

Issue #2525910 by dawehner, effulgentsia, Berdir, lauriii, larowlan, timmillwood, Wim Leers, chx, arlinsandbulte, Fabianx, Gábor Hojtsy, Dave Reid, alexpott, catch: Ensure token replacements have cacheability + attachments metadata and that it is bubbled in any case

Issue #2407195 by Wim Leers, Fabianx, joelpittet, lauriii, Crell: Move attachment processing to services and per-type response subclasses

Issue #2483433 by damiankloip, Wim Leers, catch, dawehner: Optimize CacheableMetadata::merge() + BubbleableMetadata::merge()

Issue #2478483 by Wim Leers, Fabianx: Introduce placeholders (#lazy_builder) to replace #post_render_cache

Issue #2475397 by Wim Leers: Tiny follow-up for #2474121 + unit test coverage for (Bubbleable|Cacheable)Metadata::merge()

Issue #2474121 by Wim Leers: CacheableMetadata should get BubbleableMetadata's merge/applyTo/createFromRenderArray/createFromObject methods

Issue #2471743 by pwolanin: Create a more generic superclass of  \Drupal\Core\Render\BubbleableMetadata

Issue #2464877 by Wim Leers: Update RendererInterface::addDependency() to accept *any* object, not only CachableDependencyInterface objects

Issue #2444231 by Wim Leers, nlisgo: Fix CacheableInterface so it makes sense (was: "Make Config objects & Entities implement CacheableInterface + add BubbleableMetadata::createFromCacheableObject()")

Issue #2443073 by Wim Leers, joshtaylor: Add #cache[max-age] to disable caching and bubble the max-age

Issue #2378883 by Wim Leers, dawehner: Convert existing drupal_render() KernelTestBase tests to PHPUnit tests

Issue #2350551 by Wim Leers, alexpott, damiankloip, arlinsandbulte: Views fields that have attached assets are lost when Views output caching is enabled