> ## 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.

# Copper Changelog

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

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

<Update label="v2.0.0" description="25 Aug 2026">
  `breaking-change` `bug-fix` `docs`

  Removed schema fields that Copper's API rejects with 422 — socials.category "klout", create\_activity type.category "system", related\_resource on update\_project/task, company\_id/company\_name on update\_person, status\_ids on list\_projects, priority\_ids on list\_opportunities. Added missing custom\_fields item properties (custom\_field\_definition\_id required, value) on create\_task/update\_task and made custom\_fields\[].value polymorphic (string/number/boolean/number\[]) across leads/people/companies/opportunities/projects/tasks to match Copper's data\_type-dependent value shape. Documented custom\_fields silent-drop and list\_people.name exact-match behavior; enhanced relate\_record\_to\_entity description as the sole cross-record link tool. Trimmed connection testActions to fetch\_api\_user.
</Update>