@CCicalese_WMF wrote this script which we should puppetize and deploy to run and generate a "mediawiki deployments" metric. Because it's useful for folks looking to annotate graphs or compute metrics relative to deployments. CC-ing @greg to see if he has thoughts on this or already has something similar.
Along with the script we'd need to ensure: latest on a shallow clone of mediawiki-core.
OUTPUT=/srv/published-datasets/periodic/reports/metrics/pingback/releases.tsv INPUT=/srv/mediawiki/core cd $INPUT git log --tags --since 2017-03-28 --simplify-by-decoration --pretty="format:%ci %d" | sed 's/(tag: //' | sed 's/[,)].*$//' > $OUTPUT