Spikes halved our bug escape rate
Two months after making spikes mandatory, the escape rate roughly halved, but a model upgrade landed the same month and this data can't tell the two apart.
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The end of end-to-end testing at Sugarmaple
Last week's PR cut the browser end-to-end suite from 353 scenarios to 69 by decomposing them into contract tests, and SDD runs went from three or four a week to 15.