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2026


SRE Book Second Edition Early Release

As an author, I strongly dislike O’ Reilly’s Early Release model, since my stuff gets poked at before it’s ready. As a reader, I strongly like O’ Reilly’s Early Release model, since I can poke at other people’s stuff before it’s ready!

O’ Reilly’s Safari platform is hosting the latest chapters on STPA and AI for SRE.

Opus 4.7 Model Card and Mythos Preview

I strongly suspect that Zvi doesn’t need more inbound links, but his latest model card assessment (which is, as usual, very well written) has a couple of notable quotes:

So yeah, none of that sounds great. It all sounds like the types of thing that, if you caught a human doing them even once, that would be a very bad sign, and in several cases you would obviously have to fire them.

Check out the examples of Mythos Preview attempting (and in some cases succeeding, only to be caught by the human at the last moment) to escape containment.

2024


Graceful Degradation and SLOs

When you can’t serve exactly what the user wanted, how should graceful degradation count against your SLOs? Two approaches, and the key mistake to avoid.

2023


SRE in the Real World

A guide for Google SREs navigating life outside Google — the cultural shock is harder than the tooling shift, and here’s how to think about it.

On OKRs

OKRs: neither the best nor the worst planning architecture, but great for certain things — and dependent on cultural behaviours that have nothing to do with OKRs themselves.

2022


What SRE could be

Today, I believe we cannot successfully answer several key questions about SRE. Let’s start with the most important one: how can we understand what reliability customers want and need?

2021


What SRE is not

Questions of identity solved by asking what we aren’t