> ## Documentation Index > Fetch the complete documentation index at: https://docs.openlit.io/llms.txt > Use this file to discover all available pages before exploring further. # Versioning > Trace-derived config snapshots, and exactly how selecting one scopes each tab on the agent detail page Every agent has a **version chooser** in the header and a **Version History** drawer listing all versions observed so far. Unlike a code or deployment version, an OpenLIT agent version is a **trace-derived config snapshot**: whenever the observed combination of system prompt, tools, models/providers, or runtime config (temperature, top\_p, max\_tokens) changes in incoming traces, OpenLIT fingerprints it into a new version and captures a snapshot of that configuration. The version drawer lists each version's number, fingerprint, first seen / last seen timestamps, and request count, alongside a version timeline chart showing traffic per version over the current time window. ## How selecting a version scopes each tab Selecting a version doesn't affect every tab the same way - some tabs default to showing everything and only narrow down once you pick a version; others always show a single version's data: | Tab | Without an explicit selection | With a version selected | | ----------------------------------------------------------------------- | ---------------------------------------------------- | -------------------------------------------- | | [Overview](/latest/openlit/observability/agents/overview) (the DAG) | Shows the **latest** version's call graph | Shows that version's call graph | | [Analytics](/latest/openlit/observability/agents/analytics) (Dashboard) | Shows **all-versions** aggregate trends | Narrows to that version's traffic | | [Monitoring](/latest/openlit/observability/agents/monitoring) | Shows **all-versions** traces | Narrows to that version's traces | | [Definition](/latest/openlit/observability/agents/definition) | Shows the **latest** version's system prompt + tools | Shows that version's system prompt + tools | | [Configuration](/latest/openlit/observability/agents/configuration) | Not version-scoped | Not version-scoped - always shows live state | In other words: the Overview graph and Definition tab always default to *some* version (the latest one) even before you touch the chooser, while Analytics and Monitoring default to the *whole history* and only get version-scoped once you deliberately select one. This lets you compare how the agent behaved before and after a prompt or tool change without instrumenting version tracking yourself - pick a version to isolate its Dashboard/Monitoring data, or leave it on "latest" to inspect its current graph and definition without losing the aggregate trend view on the other tabs. *** See exactly what a given version's system prompt and tools looked like