Rails
Rails 7 now lazy loads schema cache
Use a config option to now switch between eager and lazy schema cache loading.Rails does not require role when to be passed to connected_to
The connected_to block no longer throws an ArgumentError when called without a role parameter so as to pave the way for a more simplified and buildable syntax.
Rails 7 adds support for deferrable foreign key constraints in PostgreSQL
By default, foreign key constraints in PostgreSQL are checked after each statement. This works for most use cases but becomes a major limitation when creating related records before the parent record is inserted into the database.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.