diff --git a/core/CHANGELOG.txt b/core/CHANGELOG.txt
index a025876257..f63294a6d8 100644
--- a/core/CHANGELOG.txt
+++ b/core/CHANGELOG.txt
@@ -1,23 +1,25 @@
 Drupal 8.3.0, 2017-04-05
 ------------------------
 - Added modules:
-  * Added the Workflows module (experimental) which abstracts transitions and
-    states from Content Moderation into a separate component for re-use by
-    other modules implementing non-publishing workflows.
-  * Added the Layout Discovery module (experimental) which provides an API for
-    modules or themes to register layouts.
-  * Added the Field Layout module (experimental) which provides the ability for
-    site builders to rearrange fields on content types, block types, etc. into
-    new regions, for both the form and display, on the same forms provided by
-    the normal field user interface.
+    * Added the Workflows module (experimental) which abstracts transitions and
+      states from Content Moderation into a separate component for re-use by
+      other modules implementing non-publishing workflows.
+    * Added the Layout Discovery module (experimental) which provides an API for
+      modules or themes to register layouts.
+    * Added the Field Layout module (experimental) which provides the ability
+      for site builders to rearrange fields on content types, block types, etc.
+      into new regions, for both the form and display, on the same forms
+      provided by the normal field user interface.
 - Updated vendor libraries:
+    * Updated to Twig 1.25.
     * Updated to jQuery 2.2.4. @todo check 2852636 makes in it
-    * Updated to CKEditor 4.6.2.
+    * Updated to CKEditor 4.6.2 (with new skin).
+    * Updated to paragonie/random_compat 2.0.2.
     * @todo: Update normalize.css to 5.0.0: https://www.drupal.org/node/2821525
 - Browser support:
     * Internet Explore 9 and 10 no longer supported. Microsoft have now ended
       support for these browsers. Drupal will still support Internet Explorer 11
-      and it's replacement, Edge.
+      and its replacement, Edge.
       @todo dependent on approval of https://www.drupal.org/node/2842298
 - Raised stability levels of experimental modules:
     * Updated the BigPipe module from beta to stable.
@@ -35,6 +37,8 @@ Drupal 8.3.0, 2017-04-05
     * Views filter order now matches the table column order below in Content
       and People overview pages.
     * Redesigned status report.
+    * The "Allowed HTML tags" input has been converted to a text area to remove
+      the limit on the number of tags that can be specified.
 - Content Moderation improvements (experimental):
     * Refactored to use new experimental Workflows module.
     * Now supports moderation of non-translatable entity types.
@@ -62,6 +66,9 @@ Drupal 8.3.0, 2017-04-05
       loaders other than ApcClassLoader.
     * ViewsData and Token info cache now use the default cache bin to prevent
       APCu memory from being filled too quickly.
+    * Shorten length of Twig cache directory. Lengthy file/directory names could
+      be problematic in some circumstances. Warn Windows users if public file
+      path is too long.
     * Improve statistics performance by adding a swappable backend.
 - Improved developer APIs:
     * Various variations of routers merged into either AccessAwareRouter or
@@ -70,8 +77,12 @@ Drupal 8.3.0, 2017-04-05
     * EntityPublishedInterface and EntityPublishedTrait have been added to give
       a generic publishing API, and are being used by Node and Comment entity
       types.
+    * Add a collection label to EntityType. This is a plural uppercase label for
+      a collection of entities - e.g. "Workflows".
     * A new property originalRevisionId has been added to revisionable entities
       to store the old revision ID after it was updated.
+    * Node constants (e.g. NODE_PUBLISHED, NODE_PROMOTED) have been moved to
+      NodeInterface. The old constants will be removed in Drupal 9.0.x.
 - Changed coding standards:
     * @todo: Switch to short array syntax https://www.drupal.org/node/2776975
     * @todo: Standardize on whitespace for anonymous functions (closures) https://www.drupal.org/node/1999722
@@ -85,7 +96,11 @@ Drupal 8.3.0, 2017-04-05
     * Improved backward compatibility with WebTestBase.
     * Enlargement of JS test coverage.
     * Improved backward compatibility between BrowserTestBase and WebTestBase.
+    * Many old WebTestBase tests have been moved to BrowserTestBase.
     * Expanded automated test coverage for JavaScript.
+- Package management:
+    * composer.json now uses new official endpoint for modules and themes,
+      packages.drupal.org
 
 Drupal 8.2.0, 2016-10-05
 ------------------------