Who contributed to Elixir & Phoenix on July 27, 2026?

4 developers shipped this update, including Benjamin Milde, Alexander Gubarev, lukaszsamson, and makoto-developer.

What were the notable Elixir & Phoenix updates?

Fix subqueries in interpolated join wheres, Fix 'not in' as continuation operator in IEx (#15678), and Propagate the caller's Logger level to preload tasks.

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The Wire · Showcase

ECTO FIXES SUBQUERY PLANNING IN JOINS, ELIXIR PATCHES IEX PARSING

By RepoJournal · Filed 07:00 UTC on July 27, 2026 · About Elixir & Phoenix

4 people shipped this

lukaszsamson @lukaszsamson 2 cited

Benjamin Milde @LostKobrakai 1 cited

Alexander Gubarev @AlexGx 1 cited

makoto-developer @makoto-developer 1 cited

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.

The Ecto team shipped a fix [1] that resolves subqueries in interpolated join where clauses by folding them into a BooleanExpr and properly planning, merging, and reindexing alongside the join expression. This closes a gap where complex join queries with nested subqueries would fail to plan correctly. On the Elixir side, a fix [2] restores 'not in' as a valid continuation operator in IEx, which was throwing a SyntaxError when split across lines. Two smaller Ecto fixes landed: one that propagates the caller's Logger level into preload tasks [3], so log filtering now works consistently across parallel preload queries, and another [4] that preserves prepare_changes callbacks when merging changesets. Finally, Elixir cleaned up doctest formatting [5] by removing trailing commas from generated examples.

Action items

→ Review and merge Ecto #4765 if you rely on subqueries in join filters elixir-ecto/ecto [plan]
→ Update to latest Elixir if you use 'not in' across multiple lines in IEx elixir-lang/elixir [monitor]
→ Check Ecto preload log filtering behavior after Logger propagation fix elixir-ecto/ecto [monitor]

References

[1] Fix subqueries in interpolated join wheres ↗ elixir-ecto/ecto
[2] Fix 'not in' as continuation operator in IEx (#15678) elixir-lang/elixir
[3] Propagate the caller's Logger level to preload tasks ↗ elixir-ecto/ecto
[4] preserve `prepare_changes` in `Ecto.Changeset.merge/2` ↗ elixir-ecto/ecto
[5] Remove trailing comma from doctest (#15679) elixir-lang/elixir

Quick answers

What shipped in Elixir & Phoenix on July 27, 2026?: 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. In total, 5 commits and 5 pull requests landed.
Who contributed to Elixir & Phoenix on July 27, 2026?: 4 developers shipped this update, including Benjamin Milde, Alexander Gubarev, lukaszsamson, and makoto-developer.
What were the notable Elixir & Phoenix updates?: Fix subqueries in interpolated join wheres, Fix 'not in' as continuation operator in IEx (#15678), and Propagate the caller's Logger level to preload tasks.

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