Release readiness, go/no-go and regression testing

Release readiness and regression

A release decision is only as good as the evidence behind it. These notes cover how I write readiness so a Head of Engineering can decide in three minutes, how I choose what to re-test when there is no time to re-test everything, and how I check that the environment the evidence came from resembles production.

Start with the readiness note and the regression strategy. The pieces on cross-browser coverage, staging parity and release-week routines build on those two.

2 notes on release readiness

P123 Sep 20266 min read
Regression strategy without paralysis
Full regression every sprint is a fantasy. Here is how I choose what to re-check so releases stay honest without freezing delivery.
P115 Jul 20266 min read
Release readiness people can actually read
Most release packs list activity. I write the readiness note as a decision aid: what changed, what was verified, what is still open and whether to ship, readable in three minutes.

2 notes on release readiness

Regression strategy without paralysis

Release readiness people can actually read