Who contributed to Elixir & Phoenix on August 14, 2026?

3 developers shipped this update, including Alexander Gubarev, preciz, and whatyouhide.

What were the notable Elixir & Phoenix updates?

Fix Date.to_iso8601/2 loses :format with custom calendar (#15740), Fix Date.to_iso8601/2 loses :format with custom calendar, and Optimize URI.append_query field access.

Elixir & Phoenix

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

Pick a date

Topics: Elixir & Phoenix Full archive →

The Wire · Showcase

ELIXIR FIXES DATE FORMATTING BUG, SPEEDS UP URI QUERIES

By RepoJournal · Filed 07:02 UTC on August 14, 2026 · About Elixir & Phoenix

3 people shipped this

Alexander Gubarev @AlexGx 2 cited

preciz @preciz 1 cited

whatyouhide @whatyouhide 1 cited

Date.to_iso8601/2 was silently dropping the format parameter for custom calendars, and it's fixed.

The core issue: when you passed a non-ISO calendar to Date.to_iso8601/2 with a format flag like :basic, the function ignored it and returned extended format regardless [2]. Alexander Gubarev patched it [1], adding tests to catch the regression. In the same cycle, preciz optimized URI.append_query by binding the current query in the function head, letting the compiler reuse field access instead of emitting repeated dynamic paths [3]. Meanwhile, whatyouhide tightened the specs for Enum.min_max functions, making type signatures easier to parse at a glance [4]. Three commits, three focused fixes. Ship these.

Action items

→ Pull the latest elixir-lang/elixir main after these PRs merge elixir-lang/elixir [plan]
→ Test Date.to_iso8601 calls with custom calendars if you use them elixir-lang/elixir [monitor]

References

[1] Fix Date.to_iso8601/2 loses :format with custom calendar (#15740) elixir-lang/elixir
[2] Fix Date.to_iso8601/2 loses :format with custom calendar ↗ elixir-lang/elixir
[3] Optimize URI.append_query field access ↗ elixir-lang/elixir
[4] Improve Enum.min_max* specs ↗ elixir-lang/elixir

Quick answers

What shipped in Elixir & Phoenix on August 14, 2026?: Date.to_iso8601/2 was silently dropping the format parameter for custom calendars, and it's fixed. In total, 3 commits and 3 pull requests landed.
Who contributed to Elixir & Phoenix on August 14, 2026?: 3 developers shipped this update, including Alexander Gubarev, preciz, and whatyouhide.
What were the notable Elixir & Phoenix updates?: Fix Date.to_iso8601/2 loses :format with custom calendar (#15740), Fix Date.to_iso8601/2 loses :format with custom calendar, and Optimize URI.append_query field access.

PHOENIX LIVE VIEW SHIPS UPLOAD OVERHAUL, ELIXIR TUNES CORE PERFORMANCE

SteffenDE landed five critical fixes for LiveView's upload handler in one sweep, while the Elixir core team optimized Version comparison and regex operations.

elixir 34 shipped

Elixir & Phoenix Aug 13

URI ENCODING GETS 10X SPEEDUP AS PHOENIX PATCHES BOOT CRASH

Elixir landed a massive optimization for URL encoding that hits 10x gains on empty strings, while Phoenix 1.8.11 fixes a critical startup failure.

elixir 9 shipped

Elixir & Phoenix Aug 12

ELIXIR TIGHTENS GUARD SYNTAX, PHOENIX FIXES MIX DETECTION

José Valim shut down a common footgun in Elixir guards while the team fixed a startup bug that breaks when mix is available but not yet started.

elixir 6 shipped

Elixir & Phoenix Aug 11

PHOENIX LIVE VIEW PATCHES OPEN REDIRECT VULNERABILITY ACROSS TWO VERSIONS

Phoenix Live View shipped emergency security fixes for CVE-2026-64941 in both v1.1.33 and v1.2.9 to close an open redirect hole via ASCII control characters in the redirect/2 function.

elixir 14 shipped

Elsewhere on the wire

AI Agents Aug 15

LANGCHAIN SHIPS ENCRYPTED REASONING FIX, CLINE ADDS WEB SEARCH AND VOICE

ChatOpenAI now preserves OpenAI's encrypted reasoning from streamed responses, while Cline releases three versions with provider-executed web search and microphone transcription.

ai-agents 55 shipped

Local LLMs Aug 15

QWEN3.8 LANDS IN OLLAMA WITH DEVELOPER INSTRUCTION SUPPORT

Ollama shipped full Qwen3.8 support overnight, adding reasoning-effort semantics and a critical fix for coding agents that send developer instructions before user messages.

+12

llms 208 shipped

@CachyOS Aug 15

FIRMWARE AND INIT SYNC LANDS AS AUTOS ROLL FORWARD

CachyOS synced linux-firmware with Arch and bumped mkinitcpio to 41.1-1, while the package automation pipeline keeps qview and qtscrcpy current across the AUR-derived repo.

infra 41 shipped

@dotnet Aug 15

ANDROID DOCS CLOSE 93 PLACEHOLDER GAPS, KESTREL GAINS EXPERIMENTAL DIRECTTLS TRANSPORT

Jonathan Peppers shipped five major documentation closures across Java atomic, time, and text APIs while AspNetCore lands an opt-in TLS transport that bypasses SslStream on Linux.