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

# Upgrade to 0.20

> Update configuration and fixed-version protocols.

## Fixed Bub and OpenCode protocols

`bubAgent({ version })` accepts only `"0.5.1"`. Remove an old version setting or select this fixed version, and ensure any custom `otelPlugin` supports its tape protocol.
Bub's old top-level `type` events and OpenCode field fallbacks no longer become behavioral evidence. OpenCode's protocol baseline is `1.18.5`.

Unknown events are summarized in one `agent-event-unrecognized` warning per affected Attempt. Run `niceeval show @locator` to inspect event types and counts, then check the actual CLI version.
Previously stored normalized events require no migration.


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