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

# ClinicalTrials.gov Changelog

> Release history for the ClinicalTrials.gov connector. Each version lists what changed and which actions were affected.

<Card title="ClinicalTrials.gov connector" icon="arrow-left" href="/connectors/clinicaltrialsgov" horizontal>
  Back to the connector overview, authentication methods, and actions.
</Card>

<Update label="v1.0.1" description="30 Jul 2026">
  `bug-fix`

  Clarified list\_studies descriptions from MCP behavioural testing — query\_cond/query\_intr search expansion, valid fields (400 on unknown), agg\_filters facet catalog (studyType/ages/phase), subset-count via count\_total, and response-size guidance; noted list\_field\_sizes\_stats unsupported fields.
</Update>