Rails Contributors

This week we'd like to thank 18 contributors to Rails and extend a welcome to this week's only first-time contributor!

New exception handling APIs for ActiveJob

New APIs retry_on and discard_on have been added to ActiveJob. These provide hooks for a job class to perform some additional functionality when exceptions occur. The PR for this feature has some nice discussion, check it out!

New ActiveRecord transaction error classes

ActiveRecord can now distinguish between serialization failures and deadlocks. A more specific error in the case of deadlocks is now returned where supported (currently only PostgreSQL). Check the PR for an analysis of other database adapters and the latest code as the class names may have changed.

Activesupport::Duration inconsistencies around daylight saving time

Since this commit from December, "week" durations are no longer converted to days. This means we need to add :weeks to the parts that ActiveSupport::TimeWithZone will consider being of variable duration to take account of DST transitions.

YAML Parameters backwards compatibility

This change provides backwards compatibility for Rails 4.2 based on YAML serialization changes made in Rails 5.