February 2026: Rancher Fleet delivered early validation for fleet.yaml dependsOn acceptedStates, preventing invalid bundle creation. The validation derives valid states from StateRank to stay in sync with future states and provides consistent, prioritized error messages. This reduces runtime failures and debugging time, improves CLI and GitOps feedback loops, and strengthens deployment reliability.

January 2026 delivered two strategic features in rancher/fleet, with testing coverage and code-quality gains that improve reliability and deployment flexibility. The first feature enhances submodule management and shallow clone behavior, introducing a SubmoduleUpdater architecture with Fetcher and CapabilityDetector and adding tests for CloneRepo and CloneRevision. The second feature enables bundle dependency state customization by adding an AcceptedStates field to the Bundle CRD and integrating it into the dependency check flow, supporting more flexible multi-cluster deployments and a default CI_REGISTERED_CLUSTER to stabilize local e2e tests. In addition, linting fixes, documentation improvements, and test scaffolding increased maintainability and reduced regression risk.