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Elixir & Phoenix

Elixir & Phoenix

Elixir, Phoenix, LiveView, and Ecto - the BEAM web stack

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The Wire · Showcase

LIVEVIEW 1.2 SHIPS WITH TELEMETRY FIXES AND ELIXIR TIGHTENS SET OPERATIONS

By RepoJournal · Filed · About Elixir & Phoenix

Phoenix LiveView 1.2 is live with better error tracking and a critical fix for HEEx whitespace handling that broke case/when templates.

LiveView 1.2 [1] arrived with three meaningful wins: telemetry events now wrap component render updates [2], connect redirects properly surface events instead of dropping them, and the HEEx compiler no longer chokes on multiline case expressions [3]. That last fix matters because templates like `<%= case @x do %>` followed by separate `<% :foo -> %>` tags were silently broken in 1.1. Elixir's set operations got a major internal refactor [7] that splits union, intersection, and difference into bare and optimized paths, reducing duplication but requiring careful review of the Descr module's usage. Phoenix framework itself bumped six JavaScript dependencies [4] including Babel 7.29.7 and eslint 10.4.1, and released v1.8.8 [5] alongside LiveView 1.2 generator updates [6]. The ecosystem is moving in sync: LiveView 1.2 generators are baked into Phoenix 1.8.8, so if you're on that version, you get the new codegen out of the box.

Action items

References

  1. [1] v1.2.0 ↗ phoenixframework/phoenix_live_view
  2. [2] Wrap renders caused by component updates in a telemetry span ↗ phoenixframework/phoenix_live_view
  3. [3] Fix whitespace handling in HEEx compiler EEx nodes ↗ phoenixframework/phoenix_live_view
  4. [4] Bump the minor-and-patch group across 1 directory with 6 updates ↗ phoenixframework/phoenix
  5. [5] Release v1.8.8 phoenixframework/phoenix
  6. [6] Generator changes for LiveView 1.2 (#6696) phoenixframework/phoenix
  7. [7] Provide bare and opt set operations ↗ elixir-lang/elixir

FAQ

What changed in Elixir & Phoenix on June 11, 2026?
Phoenix LiveView 1.2 is live with better error tracking and a critical fix for HEEx whitespace handling that broke case/when templates.
What should Elixir & Phoenix teams do about it?
Upgrade to Phoenix LiveView 1.2 if you have multiline HEEx templates with case/when or try/rescue • Update to Phoenix 1.8.8 to sync with LiveView 1.2 generators • Review Elixir set operation changes in descr.ex if you maintain performance-critical code paths
Which Elixir & Phoenix repositories shipped on June 11, 2026?
phoenixframework/phoenix_live_view, phoenixframework/phoenix, elixir-lang/elixir

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