Impact Score: 5/10
Grafana v4.0.1
Source available — automated, not human-reviewed
Component: grafana · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Grafana v4.0.1. Source highlight: 4.0.0 had serious connection pooling issue when using a data source in proxy access. This bug caused lots of resource issues
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
🔧 Bug Fixes & Patches (2)
- **Metrics**: Fixes nil pointer dereference on my arm build #6749
- **Data proxy**: Fixes a tcp pooling issue in the datasource reverse proxy #6759
📄 View Raw Release Notes (Original Developer Log)
> **Notice**
> 4.0.0 had serious connection pooling issue when using a data source in proxy access. This bug caused lots of resource issues
> due to too many connections/file handles on the data source backend. This problem is fixed in this release.
### Bugfixes
- **Metrics**: Fixes nil pointer dereference on my arm build [#6749](https://github.com/grafana/grafana/issues/6749)
- **Data proxy**: Fixes a tcp pooling issue in the datasource reverse proxy [#6759](https://github.com/grafana/grafana/issues/6759)
[Download](http://grafana.org/download/4_0_0/)