Sourced from activesupport's releases.

8.1.2

Active Support

• Make delegate and delegate_missing_to work in BasicObject subclasses.

  Rafael Mendonça França

• Fix Inflectors when using a locale that fallbacks to :en.

  Said Kaldybaev

• Fix ActiveSupport::TimeWithZone#as_json to consistently return UTF-8 strings.

  Previously the returned string would sometime be encoded in US-ASCII, which in some cases may be problematic.

  Now the method consistently always return UTF-8 strings.

  Jean Boussier

• Fix TimeWithZone#xmlschema when wrapping a DateTime instance in local time.

  Previously it would return an invalid time.

  Dmytro Rymar

• Implement LocalCache strategy on ActiveSupport::Cache::MemoryStore. The memory store needs to respond to the same interface as other cache stores (e.g. ActiveSupport::NullStore).

  Mikey Gough

• Fix ActiveSupport::Inflector.humanize with international characters.

  ActiveSupport::Inflector.humanize("áÉÍÓÚ")  # => "Áéíóú"
  ActiveSupport::Inflector.humanize("аБВГДЕ") # => "Абвгде"

  Jose Luis Duran

Active Model

• No changes.

Active Record

• Fix counting cached queries in ActiveRecord::RuntimeRegistry.

... (truncated)

Sourced from activesupport's changelog.

Rails 8.1.2 (January 08, 2026)

• Make delegate and delegate_missing_to work in BasicObject subclasses.

  Rafael Mendonça França

• Fix Inflectors when using a locale that fallbacks to :en.

  Said Kaldybaev

• Fix ActiveSupport::TimeWithZone#as_json to consistently return UTF-8 strings.

  Previously the returned string would sometime be encoded in US-ASCII, which in some cases may be problematic.

  Now the method consistently always return UTF-8 strings.

  Jean Boussier

• Fix TimeWithZone#xmlschema when wrapping a DateTime instance in local time.

  Previously it would return an invalid time.

  Dmytro Rymar

• Implement LocalCache strategy on ActiveSupport::Cache::MemoryStore. The memory store needs to respond to the same interface as other cache stores (e.g. ActiveSupport::NullStore).

  Mikey Gough

• Fix ActiveSupport::Inflector.humanize with international characters.

  ActiveSupport::Inflector.humanize("áÉÍÓÚ")  # => "Áéíóú"
  ActiveSupport::Inflector.humanize("аБВГДЕ") # => "Абвгде"

  Jose Luis Duran

• d7c8ae6 Preparing for 8.1.2 release
• 3ea2701 CHANGELOG sync
• 0f8014a [8-1-stable] Minitest 6 support
• 991ccf3 Merge pull request #56393 from rails/add-exclude-keys-to-live-controller
• c86465f Merge pull request #56353 from rails/rmf-delegation-basic-object
• fce726b Merge pull request #56344 from Saidbek/fix-inflections-fallback-to-en-locale
• efd9bd9 Merge pull request #56324 from jeremyevans/activesupport-uri-require
• 81dca9c Merge pull request #56285 from markokajzer/main
• a5c1af3 Merge pull request #56294 from fatkodima/fix-mem_cache_store-newer-connection...
• 923f8e9 Merge pull request #56292 from fatkodima/fix-redis_cache_store-newer-connecti...
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