Rails
Rails adds the ability to prevent unwarranted shard swapping
Rails provides the config option ActiveRecord::Base.prohibit_shard_swapping that prevents swapping of database shards.
Rails 7 adds optional transaction arguments to with_lock
With Rails 7 we can pass transaction arguments like isolation, joinable, etc directly to with_lockRails loads ActionCable via Zeitwerk
Zeitwerk is a new thread-safe code loader introduced in Rails 6. Now, ActionCable and other related modules are loaded via Zeitwerk.
Rails 7: Action Text: forward form: option to hidden input
Add support for accessing the form as a property of theRails conforms to destroy_association_async_job config when destroying asynchronously
Rails no longer ignores the configuration option destroy_association_async_job when destroying objects with destroy_async option.Rails 7 adds support for setting the schema dump filepath in the database config
Schema dumps can now be toggled and dump filepaths can be set for individual database shards.
Rails 7 allows permitting numeric params
Rails 7 eliminates the issue of permitting nested hash. Now required attributes can be permitted by calling the permit method directly on the parent hash.Rails provides better ActiveRecord enum assertions
ActiveRecord now explicitly checks if the enum values are empty by raising an ArgumentError.Rails adds support for Fiber-safe ActiveRecord ConnectionPools
ActiveRecord's ConnectionPool is now fiber-safe! Adjust the value of config.active_support.isolation_level to either rely on threads or fibers to give a better throughput on fiber-oriented servers like Falcon.Rails drops records not listed in QueryMethods#in_order_of
QueryMethods#in_order_of now filters down to only the values provided, matching the behavior of the eponymous Enumerable method.