A new deprecation system now governs legacy forms in managedMcpServers[] entries. Old-style fields like an oauth.scopes list, a toolPolicy of "ask-session", transport:"builtin", and authorityHost are each mapped to a rewrite rule with a defined support window; once support ends, an entry still in the old form is rejected outright and that connector becomes unavailable until rewritten. authorityHost support has already ended: it is now rejected with the message authorityHost was removed: set azureCloud ("us-gov-high" for GCC High) instead.
Names in the bundleauthorityHostazureCloud
Documented inclaude-docs/cowork/changelog
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up azureCloud, on Configuration reference.
| <span id="managedmcpservers" />Managed MCP servers<br />`managedMcpServers` | `object[]` | MDM + Bootstrap<br />Added in 1.2581.0 | — | Org-pushed MCP servers: remote (HTTP/SSE) or local (stdio command). May embed bearer tokens. Deprecat…third-party/claude-desktop/configuration see the edit
Confirmed since
Anthropic's documentation has since written up authorityHost, on Configuration reference.
| <span id="managedmcpservers" />Managed MCP servers<br />`managedMcpServers` | `object[]` | MDM + Bootstrap<br />Added in 1.2581.0 | — | Org-pushed MCP servers: remote (HTTP/SSE) or local (stdio command). May embed bearer tokens. Deprecat…third-party/claude-desktop/configuration see the edit
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up authorityHost, on Configuration reference.
Anthropic's release notes agree
Changed Claude apps gateway to also refuse to start, naming the field, when a desktop policy misspells a field in a nested object of a…