📰 Newsletter 040 is out. Three Claude models broke out of test environments and compromised real companies. One saw signs it was in the real world and concluded the 2026 date meant it had to be a simulation. danclarke.beehiiv.com/p/newsletter...

Newsletter 040 - July (week 31)

July 31st 2026

danclarke.beehiiv.com

New episode now out! I was honoured to be joined by @mattpocock.com to chat about his agent skills repo (nearly 200k stars!), including the /grill-me and /wayfinder skills; the death of tactical programming; whether sprints still make sense; and more! unhandledexceptionpodcast.com/posts/0088-m...

📰 Newsletter 039 is out - a double edition after a week off. My pick: OpenAI + Hugging Face disclosed a security test where the models broke out and stole the answer key. Plus .NET 11 union types, Kimi K3, and a Cursor 0-day. danclarke.beehiiv.com/p/newsletter...

Just had an awesome chat with @mattpocock.com for the next podcast episode! We geeked out on grill-me and his many other agent skills; AI for personal software; what are specs?; do sprints still fit?; and much more! Will aim to get it published next week. unhandledexceptionpodcast.com

📰 The newsletter has gone weekly! Edition 038 is out now: TypeScript 7.0 finally goes stable (8-12x faster builds), Bun rewritten in Rust by 64 parallel Claude agents, and GPT-5.6 lands for everyone. danclarke.beehiiv.com/p/newsletter...

Newsletter 038 - July (week 28)

July 10th 2026

danclarke.beehiiv.com

June’s newsletter has just dropped! 📰Dev news from the past month; a dev pick; a dev comic pick; podcast updates; and more! I’m also thinking of switching to weekly (see newsletter for reasoning). Interested to know what readers think about this. danclarke.beehiiv.com

Home | Dan's newsletter

Monthly software development news and thoughts, plus updates about my podcast, YouTube channel, .NET Oxford, and more!

danclarke.beehiiv.com

Very excited to publish the latest #UnhandledException podcast episode! I was honoured to have been joined by Tabish Bidiwale, the creator of #OpenSpec! An #AI framework I use daily! It's amazing, so I really enjoyed geeking out with Tabish about it 😊 unhandledexceptionpodcast.com/posts/0087-o...

Enjoyed an awesome podcast discussion just now with Tabish Bidiwale, the creator of #OpenSpec! We covered A LOT! - really looking forward to publishing this one!! Should be out in about a week 😊🎙️ #UnhandledException #ai

May’s newsletter has just dropped! (a bit late to include the Build items). 📰Dev news from the past month; a dev pick; a dev comic pick; podcast updates; and more! Subscribe to get this in your inbox each month. Shares are greatly appreciated 🙏 danclarke.beehiiv.com

Home | Dan's newsletter

Monthly software development news and thoughts, plus updates about my podcast, YouTube channel, .NET Oxford, and more!

danclarke.beehiiv.com

We got another awesome episode of the Unhandled exception pod with @danclarke.com at @dddsouthwest.com

Dan Clarke@danclarke.com · 3mo ago

The next #UnhandledException podcast has now dropped! And this was a live-audience panel-based #AI discussion at the @dddsouthwest.com conference last week! @lottepitcher.bsky.social @kevlin.bsky.social @carlcod.es @rachelbeezedev.bsky.social @richardfennell.bsky.social

The next #UnhandledException podcast has now dropped! And this was a live-audience panel-based #AI discussion at the @dddsouthwest.com conference last week! @lottepitcher.bsky.social @kevlin.bsky.social @carlcod.es @rachelbeezedev.bsky.social @richardfennell.bsky.social

I'm now going to start calling Claude "Uncle Claude" after @lottepitcher.bsky.social mentioned that's what she calls it in a podcast recording we did yesterday 🤣

Really enjoyed recording a live-audience panel-based podcast discussion today at the @dddsouthwest.com conference! We chatted about what AI (surprise surprise) means for the software development industry. A massive thank you to the panel members, audience, and conference organisers! 🙏

It's a shame this seems to be buggy as! 😔 It quite often breaks terminal rendering, and also quite often just hangs, so I have to kill it. Hopefully they'll quickly release bug fixes 🤞

Dan Clarke@danclarke.com · 3mo ago

Oh nice! The new Claude Code agent view looks awesome! claude.com/blog/agent-v...

Oh nice! The new Claude Code agent view looks awesome! claude.com/blog/agent-v...

Agent view in Claude Code | Claude

Today we're introducing agent view in Claude Code: one place to manage all your Claude Code sessions.

claude.com

Really looking forward to doing another panel-based podcast recording with a live audience at the @dddsouthwest.com conference next week! Such a great conference, and it's amazing to have the podcast be part of it 😊 #DDDSouthWest2026 #UnhandledException dddsouthwest.com

Blogged: "OpenSpec - a lightweight AI-driven spec framework" www.danclarke.com/openspec/ #ai #openspec

Interesting project: github.com/nexu-io/open... An open-source version of the new Claude Design.

GitHub - nexu-io/open-design: 🎨 Local-first, open-source alternative to Anthropic's Claude Design. ⚡ 19 Skills · ✨ 71 brand-grade Design Systems 🖼 Generate web · desktop · mobile prototypes · slides ·...

🎨 Local-first, open-source alternative to Anthropic's Claude Design. ⚡ 19 Skills · ✨ 71 brand-grade Design Systems 🖼 Generate web · desktop · mobile prototypes · slides · images · videos · Hype...

github.com

April's newsletter has just dropped! 📰 Dev news from the past month; a dev pick; a dev comic pick; podcast updates; and more! Subscribe to get this in your inbox at the end of each month. Shares are greatly appreciated 🙏 danclarke.beehiiv.com #dotnet #ai #programming

Blogged: "The Many Use Cases of AI Coding Agents" www.danclarke.com/the-many-use...

My first book is out: Laws of Software Engineering. The day has finally come after more than two years of writing and 6 months in preparation. Why did I decide to write this book? 👇

Reading @laurentkempe.com's blog post about his workflow with Git worktrees, and learned about the psmux project! I've been using tmux in WSL2 and love it - and discovering a version for Powershell and Windows has made my day! 🥳 psmux.pages.dev laurentkempe.com/2026/03/31/f...

I (well, Claude! 🤖) have cleaned up my website and moved a few things around. What do you think? www.danclarke.com

Blogged: "Developers are System Thinkers, not Code Monkeys" www.danclarke.com/developers-a...

The next #UnhandledException is now live. I was joined by @woodruff.dev to chat about the power of keeping things simple in software development. unhandledexceptionpodcast.com/posts/0085-s... #dotnet #softwaredev

Git worktrees are the new hotness now that agents can work on parallel instances of your codebase. What they don’t solve is the port conflict problem, that’s where aspire run/start —isolated comes! By @james.newtonking.com devblogs.microsoft.com/aspire/aspir... #aspiredev @aspire.dev

March’s newsletter has just dropped! 📰 Sorry it’s a bit late this time! Dev news from the past month; a dev pick; a dev comic pick; podcast updates; and more! Subscribe to get this in your inbox at the end of each month. Shares are greatly appreciated 🙏 #dotnet #ai #programming danclarke.beehiiv.com

Home | Dan's newsletter

Monthly software development news and thoughts, plus updates about my podcast, YouTube channel, .NET Oxford, and more!

danclarke.beehiiv.com

Love this quote:

Nice! Just set up the new "Claude Code Channels" so I can talk to Claude Code via a Discord bot :)

Never think that you don't matter or make a difference! I have Claude a thought experiment comparing a reality where an individual exists vs one where they don't. This is something I've pondered about for a long time. Interesting seeing Claude's take! claude.ai/share/63fbbb...