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The Wire · Showcase

RAILS TIGHTENS DESERIALIZATION ERROR HANDLING, PROPSHAFT EYES RUBY 4

By RepoJournal · Filed · About Rails

rosa rwalters44 Jean Boussier Xavier Noria hmcguire-shopify Hartley McGuire etiennebarrie +1
8 people shipped this

Rails introduces a targeted deserialization error for orphaned job records, solving a production pain point at HEY while ActiveJob remains resilient.

Rails shipped a new `ActiveJob::DeserializationError::RecordNotFound` exception [1] that lets developers distinguish between transient database connection failures and legitimate record deletions during job deserialization. This fixes a real production issue at HEY where networking blips were tanking entire job queues instead of being retried intelligently. Paired with that, Rails is optimizing how it preloads dependent associations [2], collapsing redundant scopes to eliminate n x m matching bottlenecks that slow down association loading on large record sets. Over in propshaft, the asset pipeline now runs CI against Ruby 4 [3], confirming it's ready when the language ships later this year. Propshaft also shed its deprecated internal usage of `Mime::EXTENSION_LOOKUP` [4], staying ahead of the deprecation curve Rails set in core.

Action items

References

  1. [1] Introduce `ActiveJob::DeserializationError::RecordNotFound` ↗ rails/rails
  2. [2] Combine equivalent owner-dependent preload scopes ↗ rails/rails
  3. [3] Add Ruby 4 to CI, bundle update, and checksums ↗ rails/propshaft
  4. [4] Don't use Mime::EXTENSION_LOOKUP directly ↗ rails/propshaft

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