> For the complete documentation index, see [llms.txt](https://adatrack.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adatrack.gitbook.io/docs/changelog/2026-03.md).

# March 2026

## Features & Enhancements

* **Statistics & Data Visualization V2:**
  * Expanded support for dynamic time ranges with relative presets and custom range pickers.
  * Integrated statistics charts directly into dashboards for side-by-side analytical views.
  * Added statistics "blocks" to the reporting module, enabling visualizations in PDF/HTML reports.
  * Enhanced Query Builder with restored aggregation functions (Sum, Avg, Min, Max, Count) and free-text payload key support.
* **AdaTrack Flow (Workflow Engine) Enhancements:**
  * Automated schema inference from telemetry, simplifying variable mapping between nodes.
  * New "Stats Query" nodes for historical data-driven decision-making within logic chains.
  * Reporting integration nodes to trigger custom reports and telemetry rule evaluations.
  * Dedicated notification nodes for Slack, Email, and Webhooks.
  * Redesigned "Add Node" menu with categorized search and improved drag-and-drop.
* **Developer & Power User Tools:**
  * **Decoder Playground:** New environment for testing JavaScript payload decoders against binary data before deployment.
  * **Service Status Monitoring:** Public status page now includes historical uptime, real-time Prometheus metrics, and improved mobile responsiveness.
  * **User Preferences:** Centralized store for UI preferences including sidebar state, themes, and map views.

## Improvements & Fixes

* **Backend Migration:** Updated the entire backend to **Go 1.26.3** for performance and security.
* **Testing & Stability:** Integrated a comprehensive **Playwright E2E testing suite** covering registration, onboarding, and workflows.
* **Infrastructure:** Finalized the `usage_ledger` system for persistent usage metering, decoupling billing from telemetry retention.
* **RBAC Extension:** Expanded Role-Based Access Control to Geofences, Alert Rules, and Device Profiles with "System" vs "User" ownership.
* **UI/UX Polishing:**
  * Fixed mobile navigation and dashboard overflow issues.
  * Standardized ownership badging across all list views.