Who contributed to Rails on May 12, 2026?

4 developers shipped this update, including moveson, seanpdoyle, rafaelfranca, and yuri-zubov.

What were the notable Rails updates?

Fix unexpected behavior for dependent: :purge, Pass render options and block to calls to `#render_in`, and Rewrite Arel tests using `ActiveSupport::TestCase` instead of `Minitest::Spec`.

@rails

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The Wire · Showcase

RAILS FIXES ATTACHMENT PURGE BUG, EXPANDS RENDER_IN FLEXIBILITY

By RepoJournal · Filed 06:00 UTC on May 12, 2026 · About Rails

4 people shipped this

moveson @moveson 1 cited

seanpdoyle @seanpdoyle 1 cited

rafaelfranca @rafaelfranca 1 cited

yuri-zubov @yuri-zubov 1 cited

Rails shipped a critical fix for dependent: :purge that was detaching instead of purging attachments — and simultaneously expanded the render_in API to accept locals and blocks.

The attachment purge fix [1] corrects unexpected behavior where has_one_attached and has_many_attached with dependent: :purge would detach records instead of purging them on destroy. This is a behavioral bug fix that changes production behavior — review your attachment cleanup patterns. On the view layer, Rails now passes render options and blocks through to #render_in calls [2], extending support for Greeting and similar renderable objects to accept locals and custom blocks at the call site. Separately, the test infrastructure is getting a cleanup pass: Arel tests are being rewritten away from Minitest::Spec syntax [3] to reduce the spec dialect maintenance burden going forward. On the tooling side, devcontainer now defaults to postgres-client-17 [4] when building against Debian Trixie, and rails-html-sanitizer cut its gem package size 43% by excluding test files [5], dropping from 28K to 16K. Bootsnap fixed a method leak in Object during Parse.y testing [6], and the Rails website documentation saw minor banner updates [7]. All of these are steady-state improvements with no breaking changes for most deployments.

Action items

→ Audit your dependent: :purge usage — verify attachments are actually purging, not just detaching rails/rails [plan]
→ Test render_in calls with locals and blocks if you use custom renderable objects rails/rails [monitor]
→ Update devcontainer to feature_postgres-client_1.2.0 for Postgres 17 client support rails/devcontainer [monitor]

References

[1] Fix unexpected behavior for dependent: :purge ↗ rails/rails
[2] Pass render options and block to calls to `#render_in` ↗ rails/rails
[3] Rewrite Arel tests using `ActiveSupport::TestCase` instead of `Minitest::Spec` ↗ rails/rails
[4] feature_postgres-client_1.2.0 ↗ rails/devcontainer
[5] Reduce gem size by excluding test files ↗ rails/rails-html-sanitizer
[6] Avoid leaking a method in Object when testing for Parse.y bugs rails/bootsnap
[7] Update banner.html rails/website

Quick answers

What shipped in Rails on May 12, 2026?: Rails shipped a critical fix for dependent: :purge that was detaching instead of purging attachments — and simultaneously expanded the render_in API to accept locals and blocks. In total, 16 commits, 8 pull requests, and 1 releases landed.
Who contributed to Rails on May 12, 2026?: 4 developers shipped this update, including moveson, seanpdoyle, rafaelfranca, and yuri-zubov.
What were the notable Rails updates?: Fix unexpected behavior for dependent: :purge, Pass render options and block to calls to `#render_in`, and Rewrite Arel tests using `ActiveSupport::TestCase` instead of `Minitest::Spec`.

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