Changelog

4.3.0 July 21, 2026

Added:

  • Diagnostic panel — a dedicated view for Runtime monitoring and analysis, comprising:
    • real-time monitoring dashboard with JVM memory, GC, threads and per-minute CPU usage,
    • performance profiler with flamegraph and call-stack profiling for functions, flows and domain attributes,
    • diagnostic export and import for offline analysis,
    • light theme support,
  • Licensing — a license is now required to run Higson, with:
    • developer license for non-production environments,
    • production license for commercial use,
    • license diagnostics — current license, usage and vCPU exceedance episodes,
    • expiry warnings — footer banner, daily popup and notifier,
  • Rule encapsulation based on profiles; rule elements can now be explicitly assigned to a profile, with:
    • profile assignment for decision tables, functions, flows and regions,
    • profile-aware read/write authorization,
    • profile-scoped filtering, export/import and snapshots,
  • Lighter versioning and faster snapshot export — memory and snapshot size optimization; when a new parameter version introduces no changes, Higson links to the previous version instead of storing a full copy, reducing footprint across Runtime, snapshot import/export, Excel import and region attach/detach, with merge, split and deduplication operations,
  • Asynchronous snapshot import — imports now run in the background and, if an instance fails mid-import, are automatically resumed by another instance, making Higson more resilient and cloud-friendly; includes job status tracking and history,
  • AI (beta) — LLM-powered assistance and AI-agent integration, with:
    • AI assistant for functions — explain and generate function code,
    • AI-assisted decision table generation,
    • documentation chat assistant backed by the Higson knowledge base,
    • Higson MCP (Model Context Protocol) server exposing Studio operations to AI agents, with per-user session scoping and tools for regions, profiles and versions,

Changed:

  • Important: Higson Studio now requires a valid license to run,
  • Refresh token stored in an HttpOnly cookie with the access token kept in memory,
  • User tokens invalidated on role reduction,