The Changelog: Software Development, Open Source

Adam talks with Tailscale co-founder and Chief Strategy Officer David Carney about where Tailscale is headed next: TSIDP, TSNet, multiple tailnets, and Aperture. They get into clickless auth (via TSIDP), TSNet apps, multiple tailnets for isolation and control, and Aperture, Tailscale’s private AI gateway for API key management, observability, and agent security. Join the discussionChangelog++ members save 8 minutes on this episode because they made the ads disappear. Join today!Sponsors:Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow. NordLayer – Toggle-ready network security for modern businesses. Get an exclusive offer: up to 22% off NordLayer yearly plans plus 10% on top with the coupon code changelog-10-NORDLAYER. Try it risk-free with a 14-day money-back guarantee at nordlayer.com/thechangelog Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase. Fly.io – The home of Changelog.com — Deploy your apps close to your users — global Anycast load-balancing, zero-configuration private networking, hardware isolation, and instant WireGuard VPN connections. Push-button deployments that scale to thousands of instances. Check out the speedrun to get started in minutes. Featuring:David Carney – Website, GitHub, XAdam Stacoviak – Website, GitHub, LinkedIn, Mastodon, XShow Notes:Send an email to David ~> [email protected] Mentioned in this episode Tailscale Aperture by Tailscale TSIDP TSNet Multiple tailnets Tailnet policy file syntax Model Context Protocol (MCP) MCP specification Proxmox VE Incus OIDC / OpenID Connect OAuth 2.0 Okta Microsoft Entra ID Google Workspace Keycloak Salesforce Anthropic Amazon Bedrock Oso Cerbos Go GopherCon Simon Willison Something missing or broken? PRs welcome!

This week’s been wild — Iran bombed AWS data centers to take down Claude, OpenAI dropped GPT-5.4 (and it’s seriously good for coding), and living brain cells are literally playing DOOM. We’ve also got a heartfelt take on what it feels like to be a 10x engineer in the age of AI, plus some cool new tools like Handy for speech-to-text and web haptics. Oh, and new MacBook Pros with M5 Pro and M5 Max are up for pre-order. Try not to impulse buy (or do). View the newsletterJoin the discussionChangelog++ members support our work, get closer to the metal, and make the ads disappear. Join today!Sponsors:Sonatype – Develop software fearlessly. Find out how at sonatype.com. Featuring:Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Adam and Jerod get into the news, Jerod officially retires from the pod (and Changelog), plus a bonus for our Changelog++ subs! Join the discussionChangelog++ members get a bonus 16 minutes at the end of this episode and zero ads. Join today!Sponsors:Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow. Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase. Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog Featuring:Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, XJerod Santo – Website, GitHub, LinkedIn, Mastodon, XShow Notes: Ladybird adopts Rust, with help from AI - Ladybird The JavaScript Oxidation Compiler Become an Oxc Sponsor | The JavaScript Oxidation Compiler Boshen (@boshen_c) / X Am I the only one who genuinely prefers on-prem? : r/devops The Software Development Lifecycle Is Dead | Boris Tane THE 2028 GLOBAL INTELLIGENCE CRISIS Anish Acharya on X: “a different way this could go down…” The Mythical Agent-Month – Wes McKinney NanoClaw - Secure AI Agent for WhatsApp, Telegram & More Zed — Agent Client Protocol Something missing or broken? PRs welcome!

Burke Holland works on GitHub Copilot by day and codes with his AI agents always. Early January, Burke posted about how Opus 4.5 changed everything. We were all still buzzing from the holiday-season 2x usage bump Claude gave us, and Opus 4.5 felt like a genuine step function in capability. Burke and I get into all the details. Opus 4.5 may have started the fire, but GPT-5.3 Codex is certainly living up to the hype. Join the discussionChangelog++ members get a bonus 17 minutes at the end of this episode and zero ads. Join today!Sponsors:Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow. Squarespace – Turn your expertise into a business with the all-in-one platform for websites, services, and getting paid. Use code CHANGELOG to save 10% on your first website purchase. Notion – Custom Agents that automate the busywork so your team can focus on real work. Try them free at notion.com/changelog Featuring:Burke Holland – Website, GitHub, XAdam Stacoviak – Website, GitHub, LinkedIn, Mastodon, XShow Notes: Opus 4.5 is going to change everything Jon Gjengset Explains Rust 2026 How we rebuilt Next.js with AI in one week Rebuilding Next.js using AI in a single week The era of the Small Giant (Changelog #673) Layercode — Voice AI infrastructure for TypeScript developers Diffs — An open source diff and code rendering library Pierre Computer Company Code Storage Entire — Developer platform from former GitHub CEO Thomas Dohmke Tigris Data @traskjd tweet GitHub Copilot Something missing or broken? PRs welcome!

Wes McKinney on the mythical agent-month, install Peon Ping to employ a Peon today, Andreas Kling explains why Ladybird is adopting Rust, Cloudflare has a new MCP server that’s quite efficient, and Elliot Bonneville thinks the only moat left is money. View the newsletterJoin the discussionChangelog++ members support our work, get closer to the metal, and make the ads disappear. Join today!Sponsors:Augment Code – Adam loves “Auggie” – Augment Code’s CLI that brings Augment’s context engine and powerful AI reasoning anywhere your code goes. From building alongside you in the terminal to any part of your development workflow. Featuring:Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X