Ruby on Rails Files

Active Support

• Fix JSONGemCoderEncoder to correctly serialize custom object hash keys.

  When hash keys are custom objects whose as_json returns a Hash, the encoder now calls to_s on the original key object instead of on the as_json result.

  Before: hash = {CustomKey.new(123) => "value"} hash.to_json # => {"{:id=>123}":"value"}

  After: hash.to_json # => {"custom_123":"value"}

  Dan Sharp

• Fix inflections to better handle overlapping acronyms.

  ```ruby ActiveSupport::Inflector.inflections(:en) do |inflect| inflect.acronym "USD" inflect.acronym "USDC" end

  "USDC".underscore # => "usdc" ```

  Said Kaldybaev

• Silence Dalli 4.0+ warning when using ActiveSupport::Cache::MemCacheStore.

  zzak

Active Model

• Fix Ruby 4.0 delegator warning when calling inspect on attributes.

  Hammad Khan

• Fix NoMethodError when deserialising Type::Integer objects marshalled under Rails 8.0.

  The performance optimisation that replaced @range with @max/@min broke Marshal compatibility. Objects serialised under 8.0 (with @range) and deserialised under 8.1 (expecting @max/@min) would crash with undefined method '<=' for nil because Marshal.load restores instance variables without calling initialize.

  Edward Woodcock

Active Record

• Fix insert_all and upsert_all log message when called on anonymous classes.

  Gabriel Sobrinho

• Respect ActiveRecord::SchemaDumper.ignore_tables when dumping SQLite virtual tables.

  Hans Schnedlitz

• Restore previous instrumenter after execute_or_skip

  FutureResult#execute_or_skip replaces the thread's instrumenter with an EventBuffer to collect events published during async query execution. If the global async executor is saturated and the caller_runs fallback executes the task on the calling thread, we need to make sure the previous instrumenter is restored or the stale EventBuffer would stay in place and permanently swallow all subsequent sql.active_record notifications on that thread.

  Rosa Gutierrez

• Bump the minimum PostgreSQL version to 9.5, due to usage of array_position function.

  Ivan Kuchin

• Fix Ruby 4.0 delegator warning when calling inspect on ActiveRecord::Type::Serialized.

  Hammad Khan

• Fix support for table names containing hyphens.

  Evgeniy Demin

• Fix column deduplication for SQLite3 and PostgreSQL virtual (generated) columns.

  Column#== and Column#hash now account for virtual? so that the Deduplicable registry does not treat a generated column and a regular column with the same name and type as identical. Previously, if a generated column was registered first, a regular column on a different table could be deduplicated to the generated instance, silently excluding it from INSERT/UPDATE statements.

  Jay Huber

• Fix PostgreSQL schema dumping to handle schema-qualified table names in foreign_key references that span different schemas.

  # before
  add_foreign_key "hst.event_log_attributes", "hst.event_logs" # emits correctly because they're in the same schema (hst)
  add_foreign_key "hst.event_log_attributes", "hst.usr.user_profiles", column: "created_by_id" # emits hst.user.* when user.* is expected
  
  # after
  add_foreign_key "hst.event_log_attributes", "hst.event_logs"
  add_foreign_key "hst.event_log_attributes", "usr.user_profiles", column: "created_by_id"
  

  Chiperific

Action View

• Fix encoding errors for string locals containing non-ASCII characters.

  Kataoka Katsuki

• Fix collection caching to only forward expires_in argument if explicitly set.

  Pieter Visser

Action Pack

• No changes.

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• Fix ActiveStorage::Blob content type predicate methods to handle nil.

  Daichi KUDO

Action Mailbox

• No changes.

Action Text

• No changes.

Railties

• Add libvips to generated ci.yml

  Conditionally adds libvips to ci.yml.

  Steve Polito

Guides

• No changes.