v0.5.0

[0.5.0] - 2026-02-13

Added

• bin/source_monitor upgrade command: detects version changes since last install, copies new migrations, re-runs the generator, runs verification, and reports what changed. Uses a .source_monitor_version marker file for version tracking.
• PendingMigrationsVerifier checks for unmigrated SourceMonitor tables in the verification suite, integrated into both bin/source_monitor verify and the upgrade flow.
• Configuration deprecation framework: engine developers can register deprecated config options with DeprecationRegistry.register. At boot time, stale options trigger :warning (renamed) or :error (removed) messages with actionable replacement paths.
• sm-upgrade AI skill guides agents through post-update workflows: CHANGELOG parsing, running the upgrade command, interpreting verification results, and handling deprecation warnings.
• docs/upgrade.md versioned upgrade guide with general steps, version-specific notes (0.1.x through 0.4.x), and troubleshooting.
• sm-host-setup skill cross-references the upgrade workflow.

Testing

• 1,003 tests, 0 failures (up from 973 in 0.4.0).
• RuboCop: 397 files, 0 offenses.
• Brakeman: 0 warnings.