Show Notes online - http://podcast.thinkingelixir.com/304

Elixir Community News

• https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
• https://x.com/josevalim/status/2054202778990383152 – José Valim announces that "inference of all language constructs" for Elixir's set-theoretic types has been completed and merged.
• https://github.com/elixir-lang/elixir/issues/14558 – The meta-issue tracking set-theoretic type inference of all Elixir constructs, now wrapped up. Includes occurrence typing for high-degree precision. A new RC is expected soon on the way to Elixir v1.20.
• https://x.com/josevalim/status/2054631923893313662 – José Valim announces the release of Elixir v1.20.0-rc.5 with the latest batch of typing and performance improvements.
• https://github.com/elixir-lang/elixir/releases/tag/v1.20.0-rc.5 – Release notes for Elixir v1.20.0-rc.5. The team says they are very close to the final release and encourages users to try it and report issues.
• https://cna.erlef.org/ – The EEF CNA (CVE Numbering Authority) has seen a large increase in volume of CVEs, largely driven by AI tools. They are considering a funding campaign to cover the increased costs of fixing and administering CVEs.
• https://bsky.app/profile/tylerayoung.com/post/3mlsxbdmrw22e – Tyler Young highlights a heap of recent high-severity CVEs published against the typical Elixir + Phoenix web stack. Packages to check include cowboy < 2.15.0, cowlib < 2.16.1, plug < 1.19.2, bandit < 1.11.1, and decimal < 3.0.0.
• https://cna.erlef.org/cves/ – Full list of CVEs issued by the EEF CNA.
• https://hex.pm/packages/mix_audit – The mix_audit package can be installed and run via mix deps.audit to check your app against up-to-date published CVEs. Recommended to make it part of your CI pipeline.
• https://www.erlang.org/news/188 – OTP 29.0 released as a new major version. Highlights include unsafe function warnings, SSH daemon now defaults to disabled shell/exec services, SFTP no longer enabled by default, post-quantum hybrid key exchange as default in SSL, ANSI terminal support, Erlang doctest support, and xref now handles ignore_xref natively. Note that 32-bit Windows builds are no longer available.
• https://bsky.app/profile/peterullrich.com/post/3mlmb7kwgoc2w – Peter Ullrich highlights performance improvements landing in Elixir — Base.valid(16|32|64)? is now 1.5-2.8x faster thanks to SWAR (SIMD Within A Register) optimizations.
• https://github.com/elixir-lang/elixir/pull/15357 – PR adding SWAR (SIMD Within A Register) versions of Base validations to Elixir. SWAR treats a CPU register like a small vector to check multiple bytes at once instead of one by one.
• https://github.com/elixir-lang/elixir/pull/15255 – PR applying SWAR optimization to ASCII fast paths in String.length/1 and String.slice, yielding 2-5x improvements for pure-ASCII strings.
• https://github.com/erlang/otp/pull/10948 – The SWAR technique was also applied to Erlang itself, accelerating binary ASCII traversal using 56-bit SWAR. Improvements range from 0x to 2x depending on the operation.
• https://www.linkedin.com/posts/jskalec_phoenix-liveview-has-one-massive-dx-feature-share-7459520758126473216-glO8 – The creator of the live_vue project shares a tip for enabling state-preserving hot reloads in Phoenix LiveView.

Do you have some Elixir news to share? Tell us at @ThinkingElixir or email at show@thinkingelixir.com

Find us online

• Message the show - Bluesky
• Message the show - X
• Message the show on Fediverse - @ThinkingElixir@genserver.social
• Email the show - show@thinkingelixir.com
• Mark Ericksen on X - @brainlid
• Mark Ericksen on Bluesky - @brainlid.bsky.social
• Mark Ericksen on Fediverse - @brainlid@genserver.social
• David Bernheisel on Bluesky - @david.bernheisel.com
• David Bernheisel on Fediverse - @dbern@genserver.social

Sponsored By:

• Paraxial.io: Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.

Show Notes online - http://podcast.thinkingelixir.com/258

Elixir Community News

• https://www.honeybadger.io/ – Honeybadger.io is sponsoring today's show! Keep your apps healthy and your customers happy with Honeybadger! It's free to get started, and setup takes less than five minutes.
• https://cna.erlef.org/cves/cve-2025-4748.html – New CVE for Erlang regarding zip traversal - 4.8 severity (medium) with workaround available or update to latest patched OTP versions
• First CVE released under the EEF's new CNA (CVE Numbering Authority) program - a successful process milestone
• https://bsky.app/profile/steffend.me/post/3lrlhd5etkc2p – Phoenix MacroComponents is being delayed in search of greater potential
• https://github.com/phoenixframework/phoenix_live_view/pull/3846 – Draft PR for Phoenix MacroComponents development
• https://x.com/supabase/status/1933627932972376097 – Supabase announcement of Multigres project
• https://supabase.com/blog/multigres-vitess-for-postgres – Multigres - Vitess for Postgres, announcement of a new proxy for scaling Postgres databases to petabyte scale
• https://github.com/multigres/multigres – Multigres GitHub repository
• Sugu, co-creator of Vitess, has joined Supabase to build Multigres
• https://hex.pm/packages/phantom_mcp – Phantom MCP server - comprehensive implementation supporting Streamable HTTP with Phoenix/Plug integration
• https://hex.pm/packages/hermes_mcp – HermesMCP - comprehensive MCP server with client, stdio and Plug adapters
• https://hex.pm/packages/ex_mcp – ExMCP - comprehensive MCP implementation with client, server, stdio and Plug adapters, uses Horde for distribution
• https://hex.pm/packages/vancouver – Vancouver MCP server - simple implementation supporting only tools
• https://hex.pm/packages/excom – Excom MCP server - simple implementation supporting only tools
• https://www.youtube.com/watch?v=4dzZ44-xVds – AshAI video demo showing incredible introspection capabilities for MCP frameworks
• https://freedium.cfd/https:/medium.com/@codeperfect/we-tested-7-languages-under-extreme-load-and-only-one-didnt-crash-it-wasn-t-what-we-expected-67f84c79dc34 – Blog post comparing 7 languages under extreme load - Erlang was the only one that didn't crash
• https://github.com/software-mansion/live-debugger – LiveDebugger v0.3.0 release being teased with new features
• https://bsky.app/profile/membrane-swmansion.bsky.social/post/3lrb4kpmmw227 – Software Mansion preview of LiveDebugger v0.3.0 features including Firefox extension and enhanced debugging capabilities
• https://smartlogic.io/podcast/elixir-wizards/s14-e03-langchain-llm-integration-elixir/ – Elixir Wizards podcast episode featuring discussion with Mark Ericksen on the Elixir LangChain project for LLM integration

Do you have some Elixir news to share? Tell us at @ThinkingElixir or email at show@thinkingelixir.com

Find us online

• Message the show - Bluesky
• Message the show - X
• Message the show on Fediverse - @ThinkingElixir@genserver.social
• Email the show - show@thinkingelixir.com
• Mark Ericksen on X - @brainlid
• Mark Ericksen on Bluesky - @brainlid.bsky.social
• Mark Ericksen on Fediverse - @brainlid@genserver.social
• David Bernheisel on Bluesky - @david.bernheisel.com
• David Bernheisel on Fediverse - @dbern@genserver.social

Sponsored By:

• Honeybadger.io: Honeybadger is a performance monitoring and error tracking tool that combines the best monitoring features into one simple interface that works with all the frameworks you use and comes with fantastic support from a small team of passionate developers. With error tracking, performance and uptime monitoring, log management, dashboards, and more, Honeybadger has everything you need to gain real-time insights into the health of your Elixir and Phoenix applications. Keep your apps healthy and your customers happy with Honeybadger! It's free to get started, and setup takes less than five minutes. Start monitoring today →