Supersedes the unpublished 0.18.3 candidate while preserving its Git tag and version image. Includes the deployment safety and node recovery maintenance package documented below; remaining R2 coordination still targets 0.19.0.
Fixed
- Match the public lifecycle smoke owner-disabled refusal to the actual 0.18.3 agent capability floor, including subsequent maintenance releases. The previous 0.19.0-only test boundary held 0.18.3 publication after its upgrade, canary and node lifecycle checks passed. Regression tests compare the smoke policy with the production capability contract.