5 files changed, 27 insertions, 24 deletions
diff --git a/guides/source/5_2_release_notes.md b/guides/source/5_2_release_notes.md
index 7481d8df08..7b5c4b87e3 100644
--- a/guides/source/5_2_release_notes.md
+++ b/guides/source/5_2_release_notes.md
@@ -87,9 +87,18 @@ Action Cable
 
 Please refer to the [Changelog][action-cable] for detailed changes.
 
+### Removals
+
+*   Removed deprecated evented redis adapter.
+    ([Commit](https://github.com/rails/rails/commit/48766e32d31))
+
 ### Notable changes
 
-ToDo
+*   Added support for `host`, `port`, `db` and `password` options in cable.yml
+    ([Pull Request](https://github.com/rails/rails/pull/29528))
+
+*   Added support for compatibility with redis-rb gem for 4.0 version.
+    ([Pull Request](https://github.com/rails/rails/pull/30748))
 
 Action Pack
 -----------
@@ -98,11 +107,14 @@ Please refer to the [Changelog][action-pack] for detailed changes.
 
 ### Removals
 
-ToDo
+*   Removed deprecated `ActionController::ParamsParser::ParseError`.
+    ([Commit](https://github.com/rails/rails/commit/e16c765ac6d))
 
 ### Deprecations
 
-ToDo
+*   Deprecated `#success?`, `#missing?` and `#error?` aliases of
+    `ActionDispatch::TestResponse`.
+    ([Pull Request](https://github.com/rails/rails/pull/30104))
 
 ### Notable changes
 
@@ -115,11 +127,14 @@ Please refer to the [Changelog][action-view] for detailed changes.
 
 ### Removals
 
-ToDo
+*   Removed deprecated Erubis ERB handler.
+    ([Commit](https://github.com/rails/rails/commit/7de7f12fd14))
 
 ### Deprecations
 
-ToDo
+*   Deprecated `image_alt` helper which used to add default alt text to
+    the images generated by `image_tag`.
+    ([Pull Request](https://github.com/rails/rails/pull/30213))
 
 ### Notable changes
 
diff --git a/guides/source/active_storage_overview.md b/guides/source/active_storage_overview.md
index ec90e44358..f45dbdee3e 100644
--- a/guides/source/active_storage_overview.md
+++ b/guides/source/active_storage_overview.md
@@ -41,9 +41,6 @@ application to Rails 5.2, run `rails active_storage:install` to generate a
 migration that creates these tables. Use `rails db:migrate` to run the
 migration.
 
-You need not run `rails active_storage:install` in a new Rails 5.2 application:
-the migration is generated automatically.
-
 Declare Active Storage services in `config/storage.yml`. For each service your
 application uses, provide a name and the requisite configuration. The example
 below declares three services named `local`, `test`, and `amazon`:
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md
index b5e236b790..02d012d702 100644
--- a/guides/source/association_basics.md
+++ b/guides/source/association_basics.md
@@ -735,12 +735,9 @@ a.first_name = 'David'
 a.first_name == b.author.first_name # => true
 ```
 
-Active Record supports automatic identification for most associations with standard names. However, Active Record will not automatically identify bi-directional associations that contain any of the following options:
+Active Record supports automatic identification for most associations with standard names. However, Active Record will not automatically identify bi-directional associations that contain a scope or any of the following options:
 
-* `:conditions`
 * `:through`
-* `:polymorphic`
-* `:class_name`
 * `:foreign_key`
 
 For example, consider the following model declarations:
@@ -787,12 +784,6 @@ a.first_name = 'David'
 a.first_name == b.writer.first_name # => true
 ```
 
-There are a few limitations to `:inverse_of` support:
-
-* They do not work with `:through` associations.
-* They do not work with `:polymorphic` associations.
-* They do not work with `:as` associations.
-
 Detailed Association Reference
 ------------------------------
 
@@ -1012,7 +1003,7 @@ When we execute `@user.todos.create` then the `@todo` record will have its
 
 ##### `:inverse_of`
 
-The `:inverse_of` option specifies the name of the `has_many` or `has_one` association that is the inverse of this association. Does not work in combination with the `:polymorphic` options.
+The `:inverse_of` option specifies the name of the `has_many` or `has_one` association that is the inverse of this association.
 
 ```ruby
 class Author < ApplicationRecord
@@ -1082,7 +1073,7 @@ You can use any of the standard [querying methods](active_record_querying.html)
 The `where` method lets you specify the conditions that the associated object must meet.
 
 ```ruby
-class book < ApplicationRecord
+class Book < ApplicationRecord
   belongs_to :author, -> { where active: true }
 end
 ```
@@ -1299,7 +1290,7 @@ TIP: In any case, Rails will not create foreign key columns for you. You need to
 
 ##### `:inverse_of`
 
-The `:inverse_of` option specifies the name of the `belongs_to` association that is the inverse of this association. Does not work in combination with the `:through` or `:as` options.
+The `:inverse_of` option specifies the name of the `belongs_to` association that is the inverse of this association.
 
 ```ruby
 class Supplier < ApplicationRecord
@@ -1694,7 +1685,7 @@ TIP: In any case, Rails will not create foreign key columns for you. You need to
 
 ##### `:inverse_of`
 
-The `:inverse_of` option specifies the name of the `belongs_to` association that is the inverse of this association. Does not work in combination with the `:through` or `:as` options.
+The `:inverse_of` option specifies the name of the `belongs_to` association that is the inverse of this association.
 
 ```ruby
 class Author < ApplicationRecord
diff --git a/guides/source/testing.md b/guides/source/testing.md
index bf310cf2db..b82ccebe7c 100644
--- a/guides/source/testing.md
+++ b/guides/source/testing.md
@@ -778,7 +778,7 @@ Then the test will fill in the title and body of the article with the specified
 text. Once the fields are filled in, "Create Article" is clicked on which will
 send a POST request to create the new article in the database.
 
-We will be redirected back to the the articles index page and there we assert
+We will be redirected back to the articles index page and there we assert
 that the text from the new article's title is on the articles index page.
 
 #### Taking it further
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md
index bb4ef26876..33ab50b0e8 100644
--- a/guides/source/upgrading_ruby_on_rails.md
+++ b/guides/source/upgrading_ruby_on_rails.md
@@ -72,7 +72,7 @@ For more information on changes made to Rails 5.1 please see the [release notes]
 
 ### Top-level `HashWithIndifferentAccess` is soft-deprecated
 
-If your application uses the the top-level `HashWithIndifferentAccess` class, you
+If your application uses the top-level `HashWithIndifferentAccess` class, you
 should slowly move your code to instead use `ActiveSupport::HashWithIndifferentAccess`.
 
 It is only soft-deprecated, which means that your code will not break at the