Who contributed to Rails on May 14, 2026?

2 developers shipped this update, including byroot and drjayvee.

What were the notable Rails updates?

Better support `RubyVM::ISeq.compile_option` being mutated, Make `Bootsnap.enable_frozen_string_literal` work even with coverage on, and Handle Coverage being suspended.

@rails

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The Wire · Showcase

BOOTSNAP FIXES FROZEN STRING LITERALS AND COVERAGE CONFLICTS ON RUBY 4.0.4

By RepoJournal · Filed 06:00 UTC on May 14, 2026 · About Rails

2 people shipped this

byroot @byroot 3 cited

drjayvee @drjayvee 2 cited

Bootsnap now plays nice with coverage tools and properly tracks ISeq compile option mutations, unblocking Ruby 4.0.4+ deployments.

The real story lives in Bootsnap [1][2][3], where a trio of fixes landed overnight to handle edge cases that break on newer Ruby versions. When `RubyVM::ISeq.compile_option` mutates at runtime, Bootsnap's custom compilers weren't updating — that's fixed [1]. More critical: `Bootsnap.enable_frozen_string_literal` now works even when coverage is enabled [2], but only on Ruby 4.0.4+, because coverage suspension (not full stop) breaks ISeq dumping [3]. This matters because until now, the coverage check during ISeq dumping was effectively a no-op on older Rubies.

Meanwhile, Rails itself is doing housekeeping. The QueAdapter reference was finally removed from ActiveJob [4][5], cleaning up stale code after the adapter was dropped. Docs across rails/rails and rails-dom-testing got formatting fixes [6][7][8][9][10] — proper indentation and <tt> tags so RDoc renders correctly. These are small wins but they matter for anyone reading the API docs on a fresh install.

Action items

→ Update Bootsnap if you're running Ruby 4.0.4+ with coverage enabled or frozen string literals rails/bootsnap [plan]
→ No action required for Rails core — docs-only fixes and stale code cleanup rails/rails [monitor]

References

[1] Better support `RubyVM::ISeq.compile_option` being mutated ↗ rails/bootsnap
[2] Make `Bootsnap.enable_frozen_string_literal` work even with coverage on ↗ rails/bootsnap
[3] Handle Coverage being suspended ↗ rails/bootsnap
[4] Merge pull request #57357 from p8/activejob/remove-reference-to-que rails/rails
[5] Remove reference to removed Que adapter rails/rails
[6] Fix docs formatting for `ActionController::Live` [ci skip] ↗ rails/rails
[7] Merge pull request #57359 from p8/activestorage/fix-formatting-of-controller-docs rails/rails
[8] Fix formatting in Active Storage controller docs rails/rails
[9] Merge pull request #127 from drjayvee/fix-assert_dom-docs rails/rails-dom-testing
[10] Fix documentation formatting in SelectorAssertions#assert_dom ↗ rails/rails-dom-testing

Quick answers

What shipped in Rails on May 14, 2026?: Bootsnap now plays nice with coverage tools and properly tracks ISeq compile option mutations, unblocking Ruby 4.0.4+ deployments. In total, 18 commits, 9 pull requests, and 1 releases landed.
Who contributed to Rails on May 14, 2026?: 2 developers shipped this update, including byroot and drjayvee.
What were the notable Rails updates?: Better support `RubyVM::ISeq.compile_option` being mutated, Make `Bootsnap.enable_frozen_string_literal` work even with coverage on, and Handle Coverage being suspended.

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