Who contributed to Rails on August 12, 2026?

9 developers shipped this update, including Jean Boussier, Dylan Rainwater, Juanito Fatas, gmcgibbon, adrianna-chang-shopify, hmcguire-shopify, Xavier Noria, and carldaws, and 1 more.

What were the notable Rails updates?

Active Record ractor safe ivars 2, Merge pull request #829 from rails/json-3.x, and Merge pull request #150 from rails/json-3.x.

@rails

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The Wire · Showcase

ACTIVE RECORD RACTOR SAFETY PUSH, JSON 3.x SUPPORT LANDS ACROSS RAILS ECOSYSTEM

By RepoJournal · Filed 06:55 UTC on August 12, 2026 · About Rails

9 people shipped this

Jean Boussier @byroot 3 cited

Dylan Rainwater @dylanrainwater 1 cited

gmcgibbon @gmcgibbon 1 cited

adrianna-chang-shopify @adrianna-chang-shopify 1 cited

hmcguire-shopify @hmcguire-shopify 1 cited

carldaws @carldaws 1 cited

Juanito Fatas @JuanitoFatas

Xavier Noria @fxn

AmandaPerino @AmandaPerino

Rails is methodically closing ractor safety gaps in Active Record while the entire ecosystem moves to JSON 3.x compatibility.

Active Record just got two critical safety fixes: a new PR tackles remaining unsafe instance variables that block ractor isolation [1], while a separate commit ensures all model attributes generate methods properly instead of falling back to dynamic behavior [4]. Both Sprockets and ExecJS have now shipped JSON 3.x support [2] [3], a move that matters because the ecosystem is consolidating around the newer JSON library. On the routing side, Rails fixed a subtle bug where `url_for` would generate broken routes when passed empty strings for optional route segments [5]. Sprockets also cleaned up README documentation with a comprehensive typo sweep [6], and ExecJS removed stale macOS/Ruby 2.5 CI that was holding back maintenance [7]. The schema layer gained a new builder method for alter table definitions, giving developers more consistent control over table alterations [8]. Across 36 commits and 15 PRs over the period, the focus is squarely on compatibility, safety, and developer ergonomics rather than headline features.

Action items

→ Review Active Record ractor safety changes [ref:11] before upgrading critical production systems rails/rails [plan]
→ Update Sprockets and ExecJS to get JSON 3.x support rails/sprockets [plan]
→ Test URL generation in routes with optional segments to verify fix [ref:15] rails/rails [monitor]

References

[1] Active Record ractor safe ivars 2 ↗ rails/rails
[2] Merge pull request #829 from rails/json-3.x rails/sprockets
[3] Merge pull request #150 from rails/json-3.x rails/execjs
[4] Ensure Active Record models define all attributes ↗ rails/rails
[5] Omit optional route segments given empty strings ↗ rails/rails
[6] Fix typos and inaccuracies in README rails/sprockets
[7] Remove unsupported macos/ruby-2.5 CI rails/execjs
[8] Introduce builder method for alter table definitions ↗ rails/rails

Quick answers

What shipped in Rails on August 12, 2026?: Rails is methodically closing ractor safety gaps in Active Record while the entire ecosystem moves to JSON 3.x compatibility. In total, 36 commits, 15 pull requests, and 1 releases landed.
Who contributed to Rails on August 12, 2026?: 9 developers shipped this update, including Jean Boussier, Dylan Rainwater, Juanito Fatas, gmcgibbon, adrianna-chang-shopify, hmcguire-shopify, Xavier Noria, and carldaws, and 1 more.
What were the notable Rails updates?: Active Record ractor safe ivars 2, Merge pull request #829 from rails/json-3.x, and Merge pull request #150 from rails/json-3.x.

RAILS HARDENS MEDIA PROCESSING, KILLS UNBOUNDED CACHE

Active Storage just got tighter controls over ffmpeg and ffprobe, while Rails core ripped out a problematic attribute cache that was breaking Ractor compatibility.

ruby 39 shipped

@rails Aug 11

RAILS DEPRECATES CREATE ALIAS AS API CLEANUP CONTINUES

Rails is tightening its connection adapter API by deprecating the `create` method alias of `insert`, part of a broader push to align method names with their SQL equivalents.

ruby 19 shipped

@rails Aug 10

RAILS TIGHTENS SQL SAFETY AND LOGGING CONTROL IN MAINTENANCE PUSH

Rails shipped five commits across parameter binding, logger filtering, and migration recording that tighten SQL injection prevention and give you finer control over noisy dependencies.

ruby 32 shipped

@rails Aug 9

RAILS STRIPS REDUNDANT SYMBOL CACHING, BOOTSNAP FIXES YJIT CACHE MISSES

Rails eliminated a now-unnecessary symbol-to-string cache layer by leveraging Ruby 3.0's Symbol#name, while bootsnap's latest release stops discarding its entire compile cache when YJIT is toggled.

ruby 33 shipped

Elsewhere on the wire

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ANTHROPIC INTEGRATION FIXES TOOL BLOCKS, OPENHANDS UNBLOCKS CI, CLINE PATCHES COMPOSER WEDGE

LangChain's Anthropic integration corrected tool result handling and model profiles [ref:1], while OpenHands fixed a critical test infrastructure failure blocking all PRs and shipped 1.13.0 with conversation archives [ref:6][ref:9].