Who contributed to Elixir & Phoenix on June 18, 2026?

4 developers shipped this update, including preciz, rhcarvalho, pecampelo, and green-david.

What were the notable Elixir & Phoenix updates?

Optimize Duration.add, subtract, multiply, negate, Optimize Keyword.validate/2 by adding fast-track list merging, and installer: manage daisyui via mix.exs.

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The Wire · Showcase

ELIXIR CORE LANDS PERFORMANCE WINS ACROSS DURATION AND KEYWORD

By RepoJournal · Filed 06:05 UTC on June 18, 2026 · About Elixir & Phoenix

4 people shipped this

preciz @preciz 2 cited

pecampelo @pecampelo 2 cited

rhcarvalho @rhcarvalho 1 cited

green-david @green-david 1 cited

The core team shipped three optimization PRs overnight that flatten the most-called standard library functions, delivering 1.3x faster Duration operations and measurable wins on Keyword.validate/2.

Duration.add, subtract, multiply, and negate are getting the optimization treatment [1], cutting execution time by roughly a third while using less memory. The improvements are clean: tighter code paths with minimal added complexity, the kind of foundational work that compounds across every app. On the Keyword side, validate/2 got a fast-track overhaul [2] that introduces smart list merging to skip scanning mismatched keys early. Both land as PRs and both are shipping soon. Phoenix's installer team is pulling daisyUI out of the vendored static files and into mix.exs [3], mirroring the Heroicons migration. This kills two birds: your Docker images shrink, and you get supply chain clarity with version control instead of buried CSS files. The LiveView docs team spent the cycle clarifying security guidance [4], form bindings [5], and external uploads [6], closing gaps that junior developers hit hard. Ecto adds @on_writable_violation at the schema level [7], letting you set warn/raise defaults across your codebase instead of field-by-field configuration.

Action items

→ Watch the Duration optimization PRs land in the next Elixir point release, then benchmark your hot paths elixir-lang/elixir [monitor]
→ Update your new Phoenix apps after the daisyUI mix.exs switch lands in the next minor phoenixframework/phoenix [plan]
→ Read the updated LiveView security and form guides before your next feature sprint phoenixframework/phoenix_live_view [monitor]
→ Plan your Ecto schema migration to @on_writable_violation if you're using custom violation handlers elixir-ecto/ecto [plan]

References

[1] Optimize Duration.add, subtract, multiply, negate ↗ elixir-lang/elixir
[2] Optimize Keyword.validate/2 by adding fast-track list merging ↗ elixir-lang/elixir
[3] installer: manage daisyui via mix.exs ↗ phoenixframework/phoenix
[4] docs: improve security guide prose phoenixframework/phoenix_live_view
[5] docs: improved explanation of .form usage in Form Bindings guide ↗ phoenixframework/phoenix_live_view
[6] docs: clarified ideas in External Uploads guide ↗ phoenixframework/phoenix_live_view
[7] Add @on_writable_violation schema attribute to default :on_writable_violation for all schema fields ↗ elixir-ecto/ecto

Quick answers

What shipped in Elixir & Phoenix on June 18, 2026?: The core team shipped three optimization PRs overnight that flatten the most-called standard library functions, delivering 1.3x faster Duration operations and measurable wins on Keyword.validate/2. In total, 14 commits and 9 pull requests landed.
Who contributed to Elixir & Phoenix on June 18, 2026?: 4 developers shipped this update, including preciz, rhcarvalho, pecampelo, and green-david.
What were the notable Elixir & Phoenix updates?: Optimize Duration.add, subtract, multiply, negate, Optimize Keyword.validate/2 by adding fast-track list merging, and installer: manage daisyui via mix.exs.

ECTO FIXES SUBQUERY PLANNING IN JOINS, ELIXIR PATCHES IEX PARSING

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elixir 10 shipped 1-min read

Elixir & Phoenix 2 days ago

ELIXIR STRIPS REDUNDANT GUARDS, FIXES TUPLE PROJECTION BUG

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elixir 22 shipped 1-min read

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Elixir & Phoenix 4 days ago

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