Notes
Writing from the practice
Short pieces on measurement choices we see during release engagements — not vendor comparisons.
Write the release gate before you open the chart
If nobody can recite the go / hold rule in one sentence, the dashboard is decoration.
When canary exposure lies about who saw the change
If exposure fires on deploy instead of render of the changed UI, your progressive delivery report is fiction.
Freeze labels that survive three release trains
Renaming freeze states every train forks historical comparisons and burns trust.
Close-out briefs without vanity adoption
Day-one open rate is useless if “adopted” means the app opened for two seconds after install.