DevOps Daily Newsletter - Week 25, 2026

Happy Sunday! Here's everything we shipped this week to keep your stack sharp and your on-call quiet.

Blog Posts

The US Government Pulled Two Frontier Models Overnight. The Real Lesson Is About Your Stack

An export-control directive forced Anthropic to disable Claude Fable 5 and Mythos overnight, and the real takeaway is how exposed your stack is when a single provider can vanish. We walk through what to do before it happens to a model you depend on.

OpenTofu 1.12: destroy = false Retires the tofu state rm Ritual

OpenTofu 1.12 lets a resource say 'forget me' instead of 'destroy me', finally retiring the old tofu state rm dance. If you have ever sweated a risky apply, this one changes how you think about teardown.

npm v12 Will Stop Running Install Scripts. We Audited Our Repos to See What Actually Breaks

npm v12 (estimated July 2026) will stop running install scripts unless you opt in, so we audited our own repos to find out what actually breaks. The results were not what we expected, and you may want to check yours too.

Designing Rate Limiting for APIs: Algorithms, Patterns, and Implementation

A hands-on look at token bucket, leaky bucket, fixed window, and sliding window so you can match the algorithm to your real traffic. Read this before your next API starts shedding load at the wrong moments.

News Digests

DevOps Weekly Digest - Week 24, 2026

Curated updates from Kubernetes, cloud native tooling, CI/CD, IaC, observability, and security for Week 24. Catch up on what moved this week in five minutes.

Comparisons

Argo CD vs Jenkins X

Argo CD vs Jenkins X for Kubernetes-native CI/CD and GitOps, broken down by how they actually deploy. Figure out which fits your team before you pick a side.

Vercel vs Netlify vs Cloudflare Pages

A three-way look at Vercel, Netlify, and Cloudflare Pages for shipping modern web apps. We compare the things that bite you later so you can choose with eyes open.

Checklists

Designing Rate Limiting for APIs: Algorithms, Patterns, and Implementation

Pick the right rate limiting algorithm for your traffic shape and build it on shared atomic state that holds up under concurrency. A step-by-step checklist you can run against your own services today.

Zero-Downtime PostgreSQL Migrations in Production

Change a live PostgreSQL schema without taking the app down using the expand-and-contract pattern. Follow the checklist and ship migrations your users never notice.

Guides

Introduction to Python

A practical path through Python from the basics to building real projects you can actually use. Start here if you have been meaning to add Python to your toolkit.

Quizzes

Multi-Region Active-Active Architecture on AWS Quiz

Test how you would design an active-active application across AWS regions, from Route 53 routing to data consistency. See if your instincts hold up under a few tricky scenarios.

Flashcards

Understanding eBPF for Network Observability and Security

Learn how eBPF runs verified programs inside the Linux kernel to give you network visibility with low overhead. Quick flashcards to lock in the concepts that power modern observability.

Secrets Management with HashiCorp Vault

Run HashiCorp Vault in production with confidence: auth, policies, static and dynamic secrets, and encryption as a service. Bite-sized cards to drill the parts that trip people up.

Multi-Region Active-Active Architecture on AWS

Patterns and trade-offs for active-active workloads across AWS regions, from routing to data replication. Flip through these before you commit to a multi-region design.

Featured Games

SSL/TLS Handshake Simulator

Watch an SSL/TLS handshake unfold step by step, from certificate verification to key exchange and cipher negotiation. A clicky way to finally understand what happens before the lock icon appears.

SMTP Flow Simulator

Follow an email from app submission through EHLO, STARTTLS, AUTH, and MAIL FROM in this interactive SMTP walkthrough. Great for anyone who has ever stared at a confusing mail log.

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Happy learning, The DevOps Daily Team