Being on a known-good version of a dependency is tech debt that I want my team to pay down when we have the slack. Alpha testing every commit of everything in p

Being on a known-good version of a dependency is tech debt that I want my team to pay down when we have the slack. Alpha testing every commit of everything in prod is not our job. Google3 had company-wide build breaks so often (and hours of retest backlog) that teams had a “build cop” whose job was to urgently complain about them. Eventually they had to pick a set of active heavily-used libraries (e.g., bigtable) and set up the build system so most consumers would not depend on them at the very latest changelist.