3 #ElixirLang books in the recent functional programming Humble Bundle: www.humblebundle.com/books/ultima...

TIL about `LiveView.static_changed?/1` 💜 Clients that connect to the new deploy of an #ElixirLang LiveView app won't load the latest JS/CSS (that only happens on a hard refresh). `static_changed?/1` gives you an easy way to show an alert suggesting they refresh manually. hexdocs.pm/phoenix_live...

GitHub switching status page default language to German in order to return to five neins

One of the best feelings as a manager is when one of your reports takes a big, risky project and absolutely knocks it out of the park. It's not the *same* satisfaction you get as an IC, but it's up there.

I dusted off my blog to explain the AI engineering policy I wrote for work. It morphed into more of a rant on the lack of leadership in tech than I intended. Yelling "MOAR AI!" is not leadership and your teams all feel it. brianmeeker.me/2026/05/14/h...

Does anyone know the maintainer of Faker, Marcus Wood (igas on GitHub)? There are PRs to fix #ElixirLang 1.19 + 1.20 compatibility that have been open 3-6 months. If Marcus doesn't want to maintain it any more (totally understandable!), it'd be great to get it transferred to someone who can.

There have been a heap of CVEs published against the typical #ElixirLang + Phoenix web stack in the last few days. If your mix.lock has any of: - cowboy < 2.15.0 - cowlib < 2.16.1 - plug < 1.19.2 - bandit < 1.11.1 ...you may be vulnerable!

6,755 commits, 2,188 files changed, +1,000,257 / -4,024 LGTM! 🙃

is this such an important step for computer science - i.e. not just for #Elixir / OTP this issue is now *done*. damn! github.com/elixir-lang/...

Happy new OTP day! www.erlang.org/news/188 #Erlang #ElixirLang #GleamLang

I’m so glad we swapped NPM for PNPM at work. Not allowing arbitrary code execution when installing packages provides a lot of protection against the most common exploits that plague JS.

🚨 New Blog Post 🚨 I wrote about how I got into finding CVEs and what's the plan going forward. Also, I open-sourced the prompts I've been using. peterullrich.com/what-the-cve

Looking for an #ElixirLang dev? I'm officially on the market! 4+ years of Elixir in production. Natural affinity to testing, o11y and DX. My most used OS libraries are InstructorLite and PostHog SDK. Remote from 🇨🇦, PDT, links in bio. RTs appreciated 🙏 #MyElixirStatus

Happy Monday from GitHub. 😌 Hope you weren't planning to get any work done today. 🙃

🚨 Update absinthe 🚨 Yesterday 2 CVEs for "absinthe" were released. The vulnerabilities can exhaust your CPU and atom tables. Update ASAP Thank you Curtis Schiewek and team for the quick fix and to @maennchen.dev for managing the release cna.erlef.org/cves/CVE-202... cna.erlef.org/cves/CVE-202...

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If you’re running #Phoenix Channels (or LiveView) and have the LongPoll option enabled in your endpoint (default since 1.7.11), it’s time to do an update: github.com/phoenixframe... Thank you @peterullrich.com for finding and disclosing this issue!

I really want to build a desktop app now. 💜

Bring back the ancient knowledge

The 5 vulnerabilities I found in Bandit were fixed and released today. Please go upgrade bandit ASAP. Thanks to @mtrudel.bsky.social for fixing them so quickly and to @maennchen.dev for managing the process 🙏 #ElixirLang cna.erlef.org/cves/

The signaling thing looks amazing. I’ve definitely written jobs that that are scheduled to run every x minutes, then snooze until the thing they needed happens.

My current contract is winding down, and I'm looking for my next Elixir / Phoenix LiveView project. Ideal engagements would be in the 15–32 hours per week range. - Staff Augmentation - Technical Debt Cleanup - Platform Stability - Testing Enhancements - Documentation Refinement #ElixirLang

Yay! Lightning talks + a few keynotes are up from ElixirConf EU 2026. #ElixirLang

Just published v0.2 of jump_credo_checks with 2 new features: - Igniter installer (H/T @brittonbroderick.bsky.social 🎉) - A new check to detect Ecto migrations with separate `up`/`down` callbacks which should instead take advantage of Ecto's automatic reversibility via `change/0` #ElixirLang

This post from @josevalim.bsky.social is such important context for anyone trying to evaluate the performance of LLMs. They're super useful in lots of cases! ...but they're absolutely a hindrance in many others. nitter.net/josevalim/st... #ElixirLang

Since Saturday, I've been running Opus 4.7 over the most used Hex packages and reported my first vulnerability for plug_cowboy. This was a fun one to find and test. Thanks to José, the fix is out already, so please go and update your dependencies! #ElixirLang cna.erlef.org/cves/CVE-202...

If you're using plug_cowboy, update to the newly-released v2.8.1 to patch a denial-of-service vulnerability related to atom exhaustion. cna.erlef.org/cves/CVE-202... #ElixirLang

Imagine how much harder to follow this test would be without PhoenixTest! 😄 conn |> visit(~p"/my-form") |> assert_has("select", label: "My dropdown", selected: "My value") |> assert_has("input", label: "My checkbox", checked: true) #ElixirLang

Presented my solution for integration testing of Telegram bots as a lightning talk at ElixirConf EU. #elixirlang

So delighted that @katafrakt.eurosky.social, the OSS developer on my team at Jump, just got a long-awaited fix for using checkbox groups merged into PhoenixTest. It fixes one of the last few cases where we couldn't use PhoenixTest. 🙌 github.com/germsvel/pho... #ElixirLang

After some deliberation, I finally decided to make www.TestingLiveView.com free! I still think it's an amazing resource, but my focus is elsewhere now. So, I wanted to make it a free resource for the community. #ElixirLang

I have written something about my journey in optimising the hell out of Elixir codebase. hauleth.dev/post/things-... #elixirlang #optimisations

I always do this: `mix <tab> <tab> <rage tab>` and then realize completions aren't built in for mix. so I hacked together something truly awful, but it works github.com/dbernheisel/... Add this ^ to your zsh fpath and then you have more helpful completions, including flags. #ElixirLang

At work, a significant portion of my time is spent writing Credo checks to improve code quality. We've just open sourced 14 checks that we think will be useful to the #ElixirLang community, and we'll add more over time. Give 'em a try, let me know what you think! 🎉 tylerayoung.com/2026/04/13/c...

No more long compile times from Cldr! This is not a drill! #ElixirLang

I am _very_ interested to try this out… hex.pm/packages/ex_... #ElixirLang

I nerd-sniped myself into finding the fastest way to sort a list with 1 million elements in #ElixirLang and now wrote this library that makes your code go 6x faster if you replace “Enum” with “FEnum” github.com/PJUllrich/f_...

I love this Credo check. #ElixirLang

A former coworker with 8 years of #ElixirLang experience is looking for work. I can vouch for him being a careful, thorough engineer, and a real "manager of one." If he builds something, you can be confident it'll be solid and well thought out. Reach out here: www.linkedin.com/in/kylevsteg...

Software Mansion @swmansion.com releases LiveStash, a library solving LiveView state loss during WebSocket reconnects. github.com/software-ma...

I was shocked by the hex.pm redesign for a moment, but I think I like it. One problem though: new packages are being released so fast now that making the new package list even smaller means I'm going to miss some - it needs a longer list somewhere. #elixirLang

One Weird Trick to avoid getting pwned by these zero-days that depend on you grabbing a freshly compromised OSS package: (Note: requires you to use a lockfile everywhere. You're using a lockfile everywhere, right?)

The work chat now that Claude is tightening their usage limits

The v0.1 release of Expert (the new, official #ElixirLang LSP) is now final! 🎉 The best Elixir LSP experience keeps getting better. 😎 Tremendous thanks to all the contributors, and to Jump for sponsoring @katafrakt.bsky.social to work on this full-time. 🙏 github.com/elixir-lang/...

Wanna find garbage tests in your #ElixirLang codebase? I'm working on a Credo check that will flag any test that fails to exercise production code. Stuff like: test "to_string works" do assert to_string(:user) == "user" end (That's a real example I found in our ~20k test codebase!)

If you're using the #ElixirLang NodeJS package, be advised there's an information disclosure security vulnerability (CVE-2026-33872). It'd be quite difficult for an attacker to intentionally exploit, but fairly easy to accidentally trigger yourself. Update to 3.1.4 ASAP. github.com/revelrylabs/...

AshTypescript 0.16.0 is finally out, with a long-awaited feature: Typed Channels 🎉 Clients can now subscribe to any broadcasted changes from your ash resources, with auto-generated and ready to use Typescript ofc 😎 Read more here: hexdocs.pm/ash_typescri... #Elixir #Ash #AshFramework #Typescript

Boy, thank goodness we have LLM generated tests for this code, otherwise we'd have no tests at all!

One of the greatest joys at work is having been involved in hiring somebody who, 3 months on, has proven to be an absolute rockstar. 😌

Popcorn (the project to run #ElixirLang in the browser) just released v0.2, which makes progress toward running LiveView *locally* in the browser. Wild. I'm already dreaming about what I could do with this. github.com/software-man...