> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tracelit.io/llms.txt
> Use this file to discover all available pages before exploring further.

# April 20, 2026

> Observability Backend SDKs — initial release

# April 20, 2026 — Observability Backend SDKs — Initial Release

See the [SDK Changelog](/changelog/sdk) for the initial public release of all four backend SDKs.