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wire 2026-06-16
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ELIXIR FIXES BINARY COMPREHENSION REGRESSION, ACCESS MODULE GAINS KEYWORD SUPPORT

By RepoJournal · Filed · About Elixir & Phoenix · Composed from the cited sources · methodology

sabiwara tudborg rhcarvalho
3 people shipped this
sabiwara @sabiwara 1 cited tudborg @tudborg 1 cited rhcarvalho @rhcarvalho 1 cited

Elixir shipped fixes for a critical binary comprehension bug that broke pattern matching with options, while expanding the Access module to handle keyword lists alongside maps.

The binary comprehension regression [1] addressed a broken optimization that caused incorrect results when using the `uniq: true` option with pinned variables and operations in bitstring patterns. This fix [2] restores consistency across static sizes, pinned variable sizes, and operations, ensuring `for` loops with bin patterns behave predictably across all input scenarios. Separately, `Access.key/2` and `Access.key!/1` now support keyword lists [3] [4], expanding the module's utility beyond maps and bringing API consistency across different data structure types. Phoenix tightened ColocatedCSS requirements [5], now explicitly requiring tailwind >= 0.5 to prevent new apps from shipping in an unsupported state. The framework also refactored CI to isolate installer tests [6] [7], decoupling the installer's Elixir version matrix from Phoenix's library support matrix, fixing duplicate test runs during CI. A small but important win: `Kernel.put_elem/3` missed an optimization pass [8] that's now corrected for better performance on tuple updates.

Action items

References

  1. [1] Fix bin comprehensions when option is used ↗ elixir-lang/elixir
  2. [2] Fix bin comprehensions when option is used (#15473) ↗ elixir-lang/elixir
  3. [3] Add support for keyword lists in Access.key/2 and Access.key!/1 ↗ elixir-lang/elixir
  4. [4] Add support for keyword lists in Access.key/2 and Access.key!/1 (#15470) ↗ elixir-lang/elixir
  5. [5] Explicitly require :tailwind >= 0.5 for ColocatedCSS (#6731) ↗ phoenixframework/phoenix
  6. [6] Refactor CI workflow to isolate installer tests ↗ phoenixframework/phoenix
  7. [7] Refactor CI workflow to isolate installer tests (#6725) ↗ phoenixframework/phoenix
  8. [8] Fix missed optimization of `Kernel.put_elem/3` (#15480) ↗ elixir-lang/elixir

$ ls elixir/reviews/ # the step-back reads

the week in review Comments land in the Elixir AST the month in review Elixir core tuning, Ecto breaking change, LiveView patches dominate August
Topics: Elixir & Phoenix Full archive → Weekly reviews →

Quick answers

What shipped in Elixir & Phoenix on June 16, 2026?
Elixir shipped fixes for a critical binary comprehension bug that broke pattern matching with options, while expanding the Access module to handle keyword lists alongside maps. In total, 23 commits and 14 pull requests landed.
Who contributed to Elixir & Phoenix on June 16, 2026?
3 developers shipped this update, including sabiwara, tudborg, and rhcarvalho.
What were the notable Elixir & Phoenix updates?
Fix bin comprehensions when option is used, Fix bin comprehensions when option is used (#15473), and Add support for keyword lists in Access.key/2 and Access.key!/1.
♥

$ log Elixir & Phoenix --recent

Elixir trims Calendar.ISO parsing and weekday math, densifies coverage accounting 6 shipped File stat functions accept open handles, Keyword.drop aligns its membership check 5 shipped phx.new templates pin a Tailwind CLI that fails on macOS, LiveView starts 1.3.0-dev 3 shipped Elixir reverts duplicate alias detection, stale test deps resolve from source records 8 shipped

$ log --all # elsewhere on the wire

@openclaw Cold-start Gateway diagnostics stop crying wolf, doctor repairs plugin drift Agentic Coding Cline desktop bundles shrink, goose unblocks its own clicks

$ ls showcases/

Rails Django Laravel Node.js Go Vercel Vue.js Kubernetes HashiCorp Arch Linux Linux Anthropic

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