Rails adds ActiveRecord API for switching multiple database connections
Rails adds ActiveRecord API connects_to and connected_to for switching connections to support multiple databases.Rails introduces disallowed deprecations in ActiveSupport
Rails has added support to configure disallowed deprecations.Rails has added a benchmark generator
Rails has added a benchmark generator for scripts to benchmark Rails application.Rails adds support for if_exists/if_not_exists on remove_column/add_column in migrations
Rails adds support for if_exists/if_not_exists on remove_column/add_column in migrations to silently ignore migrationsRails 6 adds rails db:system:change command
Rails 6 adds rails db:system:change command to allow switching database configurationRails 6 - ActiveSupport Deprecations in Unicode and Chars support in favour of String
Rails 6 has deprecated methods in Unicode and Chars support for ActiveSupport in favor of using ruby 2.3+ String methods directly.Rails 6.1 adds support for multiple storage services to Active Storage
Rails 6.1 adds support to configure storage services for individual attachment.Rails adds ActiveRecord::Relation#annotate for adding SQL comments to ActiveRecord::Relation queries
Rails adds ActiveRecord::Relation#annotate for adding SQL comments to ActiveRecord::Relation queriesRuby 2.7 - Singleton class yield syntax throws a warning
Ruby 2.7 singleton class yield syntax is warned and will be deprecated in Ruby 3.0.How to pass arguments to methods in ruby and how it affects their arity
Deep dive into different ways of passing arguments to methods and how it affects their arity
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