Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

npm run server:dev script for quick local development against a single Grafana version + auth combo (#67)

Client certificate KeyUsage now includes ContentCommitment (nonRepudiation) per OPC-UA Part 6 §6.2.2. Strict-compliant servers (e.g. ProSys Simulation Server) reject certs without this bit during OpenSecureChannel, which surfaced as connect: connect: EOF (#69)
README links in the Documentation table now use absolute GitHub URLs so they resolve when the README is rendered on the Grafana plugin catalog (#76)

Documentation reorganized: lean README.md with link table, topical files moved to docs/installation.md, docs/configuration.md, docs/usage.md, docs/development.md, docs/testing.md, docs/troubleshooting.md. CONTRIBUTING.md is now a redirect stub (#74)
Repo hygiene: untracked ~100MB of accidentally-committed test artifacts and release zips, tightened .gitignore, archived completed plan files (#72)

CI: pinned golangci-lint to v2.12.2 and bumped golangci-lint-action to v7 for Go 1.25 support (#70, #71)

Initial release
OPC-UA Data Access (DA) support
Node browsing with tree view
Anonymous authentication
Username/Password authentication
Certificate authentication
Security policy and mode configuration
Connection timeout configuration
Template variable support
Health check implementation
Certificate generation UI with "Generate Certificate" button for secure connections
Client certificates stored in Grafana's encrypted storage (secureJsonData)
Certificates persist across Grafana restarts and datasource updates
Certificate status indicator showing configured/not configured state
Support for Sign and SignAndEncrypt security modes with auto-generated certificates
GitHub Sponsors link for plugin support

Security modes now support certificate auto-generation from the UI
Certificates are automatically cached during the plugin session for performance
Certificate lifecycle management - valid for 3 years with automatic renewal when expiring soon