Changelog

[Unreleased]

[0.7.0] - 2026-08-27

Added

• Add explicit callback error policies, error callbacks, and error collectors.
• Add signal capability discovery and portable signal-name normalization.
• Add shutdown! lifecycle cleanup for dispositions, atoms, watches, and queued callbacks.
• Document coordinated SIGTERM/SIGINT shutdown and the optional FFM backend.

[0.6.0] - 2026-08-27

Added

• Add explicit default, ignored, chained, current-handler, and restoration APIs.
• Reject process-wide default/ignored changes for HotSpot's reserved SIGUSR2.
• Add configurable synchronous, serial, parallel, and bounded asynchronous signal callback dispatch policies.
• Add bounded subprocess coverage for external signal delivery, default-handler restoration, reserved signals, and repeated reset operations.

[0.5.0] - 2026-08-27

Added

• Add add-handler!, remove-handler!, and clear-handlers! for atomic, composable updates to a signal's handler collection.

[0.4.3] - 2026-08-17

Fixed

• A signal atom rejects nil and non-Runnable handler sets via a validator, so a bad handler can no longer NPE on delivery.
• Clearing a signal's handler set removes the handlers from dispatch.

[0.4.2] - 2026-07-12

Changed

• Migrate the build to deps.edn and tools.build (Java compiled via clojure -T:build compile-java), with Leiningen supported via lein-tools-deps.