Remove deprecated Logger core extensions (core_ext/logger.rb)
Fix ruby patch level example in rails docs regarding info page [ci skip]

Thanks @egilburg.
Remove deprecated `ActiveRecord::Generators::ActiveModel#update_attributes` in
    favor of `ActiveRecord::Generators::ActiveModel#update`
Merge pull request #11272 from vipulnsward/generator_update

Remove deprecated `ActiveRecord::Generators::ActiveModel#update_attribute`
Remove deprecated `DateTime.local_offset`
Remove deprecated `Module#local_constant_names` 

in favor of `Module#local_constants`
Remove deprecated `String#encoding_aware?` 

core extensions (`core_ext/string/encoding`).
Merge pull request #11273 from arunagw/deprecation-removed

Deprecation removed
Fixed test broken by local_constant_names 

depreciation removed
keep a cache of the reader methods so we can reuse them
move the reader method cache in to the read module
keep a cache of writer methods
Merge pull request #11276 from arunagw/build-fix

Fixed test broken by local_constant_names
refactor the method cache objects to have a superclass
remove deprecated `PostgreSQLAdapter#outside_transaction?` method.
cleanup, remove trailing whitespace from guides/CHANGELOG
Removed deprecated threadsafe!
Merge pull request #11279 from jetthoughts/removed_threadsafe_deprectaed_option

Removed deprecated threadsafe! from Rails Config
Added missing CHANGELOG from PR #11279 [ci skip]
Merge pull request #11280 from arunagw/added-missing-changelog-entry

Added missing CHANGELOG from PR #11279 [ci skip]