Who contributed to Elixir & Phoenix on August 25, 2026?

5 developers shipped this update, including AlexGx, Barna Kovacs, José Valim, Łukasz Samson, and SteffenDE.

What were the notable Elixir & Phoenix updates?

Tag pending diffs and discard outdated ones, Cancel async tasks of components removed from the tree, and Fix final sigma handling in :greek.

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The Wire · Showcase

LiveView crash fix lands as Elixir corrects Greek casing

By RepoJournal · Filed 07:01 UTC on August 25, 2026 · About Elixir & Phoenix

5 people shipped this

SteffenDE @SteffenDE 2 cited

AlexGx @AlexGx 1 cited

Barna Kovacs @preciz 1 cited

José Valim @josevalim 1 cited

Łukasz Samson @lukaszsamson

Phoenix LiveView patches a stale-diff crash while Elixir fixes final sigma casing in Greek strings.

Phoenix LiveView is patching a crash that could occur when a view rejoined before pending diffs were applied, which could "try to apply a stale diff to a new tree and crash" [1]. The same PR also discards outdated pending diffs, ensuring only fresh state reaches the client [1]. In a related cleanup, async tasks of components removed from the tree are now properly canceled, closing issue #4401 [2]. Meanwhile, Elixir's standard library fixes Greek final sigma handling: `String.downcase("AΣ", :greek)` now returns `"aς"` instead of `"aσ"`, and `String.capitalize/2` gets the same correction [3]. A PR unifying map domain type lookup simplifies the codebase [4], and a separate PR fixes warnings when running tests [5]. With 12 commits and 8 PRs across both repos, this is a focused day of correctness fixes. LiveView users should upgrade to get the crash fix, and Elixir maintainers should review the sigma patch.

Action items

→ Upgrade phoenix_live_view to a version including PR #4405 before next deploy phoenixframework/phoenix_live_view [immediate]
→ Review and test the Greek final sigma fix in your Elixir project elixir-lang/elixir [plan]
→ Monitor the async task cancellation change for any impact on component cleanup phoenixframework/phoenix_live_view [monitor]

References

[1] Tag pending diffs and discard outdated ones ↗ phoenixframework/phoenix_live_view
[2] Cancel async tasks of components removed from the tree phoenixframework/phoenix_live_view
[3] Fix final sigma handling in :greek ↗ elixir-lang/elixir
[4] Unify map domain type lookup (#15789) elixir-lang/elixir
[5] Fix warnings when running tests elixir-lang/elixir

Quick answers

What shipped in Elixir & Phoenix on August 25, 2026?: Phoenix LiveView patches a stale-diff crash while Elixir fixes final sigma casing in Greek strings. In total, 12 commits and 8 pull requests landed.
Who contributed to Elixir & Phoenix on August 25, 2026?: 5 developers shipped this update, including AlexGx, Barna Kovacs, José Valim, Łukasz Samson, and SteffenDE.
What were the notable Elixir & Phoenix updates?: Tag pending diffs and discard outdated ones, Cancel async tasks of components removed from the tree, and Fix final sigma handling in :greek.

ELIXIR CORE CUTS MAP LOOKUP WASTE

Two pull requests into Elixir's type system are eliminating needless rebuilds that could slow pattern matching in core compiler workflows.

elixir 4 shipped

Elixir & Phoenix Aug 23

JOSE VALIM FIXES THE CLASUE BUG

Jose Valim shipped two refactors plus the actual fix for that `none` clause compiler issue, and a UTC fast path in DateTime could save you a TZ DB lookup.

elixir 6 shipped

Elixir & Phoenix Aug 22

Elixir trims trailing whitespace with zero-cost slicing

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elixir 8 shipped

Elixir & Phoenix Aug 21

Phoenix 1.8.12 patches channel message drop

Phoenix shipped a patch release that fixes a channel bug silently dropping messages without a join_ref, and LiveView is quietly rewriting the rules of navigation.

elixir 30 shipped

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