Release v4.0.1

[4.0.1] - 2026-07-17

Features

• Added TLS/SSL configuration with PEM-encoded custom CA certificates.
• Added an explicit option to skip TLS certificate validation for controlled testing environments.

Bug Fixes

• Fixed TDinsightV3 and taosX datasource-variable resolution when importing dashboards into Grafana 13 while retaining Grafana 8 compatibility.
• Updated the legacy TDinsight provisioning script to use the TDInsight V3 Dashboard ID 18180.

Security

• Disabled automatic HTTP redirects for datasource requests to prevent credentials and query payloads from being forwarded to redirected endpoints.
• Removed raw SQL from HTTP-status and TDengine query-error messages returned to Grafana and written at Error level.

Upgrade Notes

• Datasource URLs must point directly to the final TDengine REST endpoint. Configurations relying on HTTP 3xx redirects must update the URL before upgrading.