{"version":"2.1.219","anchor":"dev-and-engine-build-versions-collapsed-before-telemetry","canonical_anchor":"dev-and-engine-build-versions-collapsed-before-telemetry","heading":"Dev and engine build versions collapsed before telemetry","tier":"internal","area":"Telemetry","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219\/e\/dev-and-engine-build-versions-collapsed-before-telemetry","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219","markdown":"### Dev and engine build versions collapsed before telemetry\n\nInternal build versions get trimmed before metrics are sent, so daily builds report one value.\n\n**What**\n\nA `version` field matching a dev or engine build pattern has its `.tNNN.shaXXXX` suffix stripped before the metric is emitted, leaving `x.y.z-dev.YYYYMMDD`.\n\n**Details**\n\n- Runs alongside the existing metric normalisations that collapse `mcp__*` tool names to `mcp` and unknown model names to `other`.\n- The effect is lower per-build cardinality, since every dev or engine build of the same day now reports one value rather than one per commit.\n- Not gated; applies to all builds that emit metrics.\n\n**Evidence**\n\n`(?:dev|engine)`\n\n- Area: Telemetry\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 0\/5"}