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The Wire · Showcase

MARCEL 2.0.0 LANDS, RAILS CORE SLIMS DOWN

By RepoJournal · Filed · About Rails

jeremy byroot wintan1418 rosa seanpdoyle Mike Dalessio Nick Pezza
7 people shipped this
jeremy @jeremy 3 cited byroot @byroot 1 cited wintan1418 @wintan1418 1 cited rosa @rosa 1 cited seanpdoyle @seanpdoyle 1 cited Mike Dalessio @flavorjones 1 cited Nick Pezza @npezza93

Marcel drops Ruby 2.3 and resets canonical MIME types, while Jean Boussier trims needless Array#flatten calls out of Reflection.

Marcel finally ships 2.0.0, a major release that requires Ruby 3.3 or newer and changes the canonical type returned for some inputs, so scan the changelog before you upgrade [1]. The refresh to the Apache Tika 4.0.0 MIME database [2] lands in 2.1.0, which adds detection for Android binary XML and fixes timestamped-data recognition [3]. Meanwhile, Solid Queue closes a zombie-process hole: processes whose heartbeats keep failing are now stopped and replaced instead of running unregistered forever [4]. The async supervisor also survives worker-thread deaths even when releasing claimed jobs fails [5]. Active Resource fixes a circular require warning in its railtie [6] and adds support for the proposed HTTP QUERY method [7]. And Rails core gets a micro-optimization: Reflection#extensions avoids needless Array#flatten calls, which forces allocation of an expensive identity hash on nested arrays [8].

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Action items

References

  1. [1] v2.0.0 ↗ rails/marcel
  2. [2] Update Tika MIME data to the 4.0.0 release ↗ rails/marcel
  3. [3] v2.1.0 ↗ rails/marcel
  4. [4] Stop processes whose heartbeats keep failing past the alive threshold rails/solid_queue
  5. [5] Replace terminated threads even if releasing their claimed jobs fails ↗ rails/solid_queue
  6. [6] Fix circular require warning in railtie ↗ rails/activeresource
  7. [7] Add support for HTTP `QUERY` method ↗ rails/activeresource
  8. [8] Avoid needless Array#flatten calls ↗ rails/rails

Quick answers

What shipped in Rails on August 23, 2026?
Marcel drops Ruby 2.3 and resets canonical MIME types, while Jean Boussier trims needless Array#flatten calls out of Reflection. In total, 16 commits, 11 pull requests, and 2 releases landed.
Who contributed to Rails on August 23, 2026?
7 developers shipped this update, including byroot, jeremy, wintan1418, rosa, seanpdoyle, Mike Dalessio, and Nick Pezza.
What were the notable Rails updates?
v2.0.0, Update Tika MIME data to the 4.0.0 release, and v2.1.0.

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