March 2026

Horizon platform release notes for March 2026.

Welcome to the inaugural Horizon platform release notes. This March 2026 release brought webhook triggers and scheduled runs for agents, queued skill execution, and this documentation site.

1. FeatureWebhook Triggers

   Agents can now be triggered via inbound webhooks. Each webhook has its own URL carrying a token, and you can restrict calls to trusted source IP addresses. Treat a webhook’s URL as a secret: the token in it is what authenticates a call. See Webhooks.

1. FeatureScheduled Jobs

   Schedule agents to run on cron expressions. Define recurring jobs using standard cron syntax and specify an IANA timezone for evaluation. After a failed run, the next attempt is the schedule’s next occurrence.

1. ImprovementSkill Execution

   Long-running skills are now enqueued through BullMQ for reliable processing, and a failed execution returns its error message to the agent as the skill’s result.

1. FeatureDocumentation Site

   This documentation site is now live, covering the Platform Guide, the Apps, Agents and Skills reference, and API documentation, with conceptual overviews and step-by-step tutorials in one place.