Rename `hash` to `jar` in CookieJar.build

List available skip options in command line guide

[skip ci] Add undefined STI acronym to the heading which is referred under its section

Use a single thread for all ConnectionPool Reapers

In CookieJar.build, the name `hash` is used as block parameter name
for tap method.
However, it is actually not hash but a CookieJar's instance.
The name `hash` was confusing, so replace with `jar`.

Fix that an ActiveRecord::RecordNotUnique error would be raised when saving rich-text content with the same file attached multiple times.

Previously we would spawn one thread per connection pool, which ends up
being wasteful for apps with several connection pools.

typo change

In Adding More RESTful Actions, Adding Member Routes:
I believe the word 'that' should be added to the sentence, 'Within the block of member routes, each route name specifies the HTTP verb will be recognized.' This results in 'Within the block of member routes, each route name specifies the HTTP verb that will be recognized.'

Use multipart uploads for files larger than 100 MB. Dynamically calculate part size based on total object size and maximum part count.

Inherit from ActiveSupport::TestCase instead of ActionDispatch::IntegrationTest. Active Job automatically mixes its test helper into the latter, forcibly setting the test queue adapter before Capybara starts its app server.

As a bonus, we no longer need to remove the parts of the ActionDispatch::IntegrationTest API we don’t want to expose.

Fix: DummyCompiler embeds invalid YAML content

Fixes https://github.com/rails/rails/issues/36285.

Follow up of https://github.com/rails/rails/pull/36237.

Fix eager loading associations with string joins not to raise NoMethodError

Fixes #34456.

Added guide for `config.autoloader` [skip ci]

To avoid word wrap in the rendered guide.

Fix database loading when ERB is single line ternary

Improve nested parameter resolving - continuation of 29888

Improve doc for :root option in as_json()

Don't track implicit `touch` mutation

This partly reverts the effect of d1107f4d.

d1107f4d makes `touch` tracks the mutation whether the `touch` is
occurred by explicit or not.

Existing apps expects that the previous changes tracks only the changes
which is explicit action by users.

I'd revert the implicit `touch` mutation tracking since I'd not like to
break existing apps.

Fixes #36219.

[skip ci] The default value of config.active_record.collection_cache_versioning without loading Railtie is false

[skip ci] The default value of config.active_record.collection_cache_versioning without loading Railtie is false

Please check https://github.com/rails/rails/pull/36260#discussion_r283266942 for reference.

[Vishal Telangre, bogdanvlviv]

Remove trailing whitespace [ci skip]

Reword

Root value should be string [ci skip]

[skip ci] Add missing info about 'active_record.collection_cache_versioning' configuration

test for non-numeric key in nested attributes

test: extra blank line between tests removed

test for non-numeric key fixed (by Daniel)

Update according to feedback

[skip ci] Fix missing punctuation mark and formatting in CHANGELOG

Remove SQLite version support caveats [ci skip]

[ci skip] Clarity about embed metadata in signed and encrypted cookie