v0.51.0

vectordotdev/vectorv0.51.0Nov 4, 2025by github-actions[bot]

AI Summary

Version 0.51.0 enhances OpenTelemetry Protocol support with a new OTLP codec, improves internal telemetry by fixing negative utilization values and buffer counter underflow issues, and enriches memory enrichment tables with expired output functionality.

Key Highlights

New otlp codec for bidirectional conversion between Vector events and OTLP format
Fixed internal telemetry issues with negative utilization values and buffer counter underflow
Memory enrichment tables now include expired output for exporting expired cache items
Enrichment table outputs accessible via vector tap

New Features

OTLP codec support
Internal telemetry fixes
Enrichment table expired output
Vector tap access to enrichment tables

Full Release Notes

> [!CAUTION]  
> Please upgrade to https://github.com/vectordotdev/vector/releases/tag/v0.51.1 instead.

The [COSE team](https://opensource.datadoghq.com/about/#the-community-open-source-engineering-team) is excited to announce version 0.51.0! 🚀

Release highlights:

- Enhanced OpenTelemetry Protocol (OTLP) support with the introduction of the otlp codec, enabling bidirectional conversion between Vector events and OTLP format for seamless integration with OpenTelemetry collectors and instrumentation.
- Improved Vector’s internal telemetry; fixed issues where utilization metrics reported negative values and buffer counters underflowed.
- Enhanced memory enrichment tables with an expired output for exporting expired cache items, and made enrichment table outputs accessible via vector tap.

This release contains several more enhancements, bug fixes and breaking changes.

👉 **View the [full changelog here](https://vector.dev/releases/0.51.0/).**