Who contributed to Elixir & Phoenix on June 13, 2026?

2 developers shipped this update, including SteffenDE and rhcarvalho.

What were the notable Elixir & Phoenix updates?

Optimize Keyword.pop/3, pop!/2, and pop_lazy/3 (#15466), When navigating, prevent outdated events from reaching the new view, and Update requirement blockquotes to use ExDoc admonitions.

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KEYWORD OPERATIONS GET 15% FASTER, LIVE NAVIGATION EVENT BUG SEALED

By RepoJournal · Filed 06:05 UTC on June 13, 2026 · About Elixir & Phoenix

2 people shipped this

rhcarvalho @rhcarvalho 2 cited

SteffenDE @SteffenDE 1 cited

Elixir core eliminates redundant list traversals in Keyword.pop while Phoenix LiveView closes a race condition where old view events leak into new views during navigation.

The Keyword module saw a meaningful optimization land in core [1]: pop/3, pop!/2, and pop_lazy/3 now execute in 2 list traversals instead of 3 by calling :lists.keyfind and delete_key directly rather than chaining fetch and delete. The benchmark shows ~1.15x speedup on average. This is the kind of foundational polish that compounds across thousands of applications. Meanwhile, Phoenix LiveView fixed a subtle but real race condition [2] where old DOM could still render during phx-remove transitions while the view registry already pointed to the new view, causing events to reach the wrong lifecycle. The fix switches owner lookup from ID-based to private view marker-based tracking. On the documentation front, Phoenix updated requirement blockquotes to use ExDoc admonitions for cleaner rendering [3], and LiveView's security guide now explicitly emphasizes never trusting user input in params and payloads [4]. A smaller cleanup removed unreachable dead code in LiveView's change tracking [5].

Action items

→ Review LiveView applications for phx-remove transitions paired with live_navigation to ensure event leakage is not a factor in your use case phoenixframework/phoenix_live_view [plan]
→ Read the updated LiveView security guide, particularly the 'Never trust user input' section on params and payloads phoenixframework/phoenix_live_view [monitor]
→ Benchmark Keyword.pop operations in production if you rely heavily on keyword argument handling elixir-lang/elixir [monitor]

References

[1] Optimize Keyword.pop/3, pop!/2, and pop_lazy/3 (#15466) elixir-lang/elixir
[2] When navigating, prevent outdated events from reaching the new view ↗ phoenixframework/phoenix_live_view
[3] Update requirement blockquotes to use ExDoc admonitions ↗ phoenixframework/phoenix
[4] Improve security guide regarding user input ↗ phoenixframework/phoenix_live_view
[5] Remove dead vars_changed_vars(:all) clause (#4294) phoenixframework/phoenix_live_view

Quick answers

What shipped in Elixir & Phoenix on June 13, 2026?: Elixir core eliminates redundant list traversals in Keyword.pop while Phoenix LiveView closes a race condition where old view events leak into new views during navigation. In total, 15 commits, 8 pull requests, and 2 releases landed.
Who contributed to Elixir & Phoenix on June 13, 2026?: 2 developers shipped this update, including SteffenDE and rhcarvalho.
What were the notable Elixir & Phoenix updates?: Optimize Keyword.pop/3, pop!/2, and pop_lazy/3 (#15466), When navigating, prevent outdated events from reaching the new view, and Update requirement blockquotes to use ExDoc admonitions.

ECTO FIXES SUBQUERY PLANNING IN JOINS, ELIXIR PATCHES IEX PARSING

Ecto's query planner now handles subqueries correctly in interpolated join filters, while Elixir fixes a syntax error that broke 'not in' as a continuation operator in IEx.

elixir 10 shipped 1-min read

Elixir & Phoenix 2 days ago

ELIXIR STRIPS REDUNDANT GUARDS, FIXES TUPLE PROJECTION BUG

Barna Kovacs landed three optimization PRs removing dead code from core Enum and Calendar modules, while a separate fix addresses a flawed tuple projection algorithm that was producing inconsistent type representations.

elixir 22 shipped 1-min read

Elixir & Phoenix 3 days ago

LIVEVIEW ASYNC CLEANUP FIX SHIPS ALONGSIDE RANGE OPTIMIZATIONS

Phoenix LiveView closes a critical async task test failure while Elixir cuts unnecessary abs calls from Range operations.

elixir 19 shipped 1-min read

Elixir & Phoenix 4 days ago

PHOENIX LIVE VIEW SEALS CRITICAL NODE NAME LEAK IN UPLOAD TOKENS

A reverted encryption fix exposes how Phoenix was leaking BEAM node identities through unencrypted upload tokens, and the core team is pivoting to a cleaner solution using term_to_binary.

elixir 23 shipped 2-min read

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