After upgrading turbo from 1.4.7 to 1.5.x, every run prints the warning "WARNING failed to contact turbod. Continuing in standalone mode". Builds still complete, but the daemon connection fails because the upgrade left a stale turbod.pid file pointing at a process that no longer exists. Turborepo 1.5 enabled the turbod daemon by default, and the pid file was not cleaned up. Reporters saw this on Windows, macOS, and Linux.