Hermes Agent v0.21.4 Expands Automation and Connector Management

v0.21.4 adds automatic skill loading, stream-json output, MCP concurrency controls, date-filtered conversation search, plugin deletion, and unified connector settings. New CLI, package-management, and source-install documentation improves reproducibility and operator control, but context growth, startup overhead, shared-state migration, connector exposure, and unreviewed bulk changes remain important concerns.