What
In the plugin marketplace settings form, the Ref field (which picks the version of the marketplace to use) now says it accepts a branch, a tag or a commit SHA. A commit SHA is the long code that identifies one exact saved version in git. The description now states that a full 40-character SHA is only needed for auto_install and required.
Why
For most marketplaces you can enter a branch or tag name, and only need the exact SHA when a plugin is installed automatically or required.
Names in the bundleauto_installrequired
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 auto_install, on MCP, plugins, skills, and hooks.
| `"auto_install"` | Installs automatically on the next sync. Users can uninstall it, and it stays uninstalled for that user. |third-party/claude-desktop/extensions see the edit
Added since
A small documentation edit on structured-outputs touched a line naming required after this was published.
**Migrating from beta?** The `output_format` parameter has moved to `output_config.format`, and beta headers are no longer required. The `output_format` parameter is deprecated and will be removed in the future. To use it anyway, add the `…build-with-claude/structured-outputs see the edit
Confirmed since
Anthropic's documentation has since written up required, on cache-diagnostics.
Include the `diagnostics` object on every turn. The object is the opt-in: the API stores a fingerprint only for requests that include it. On the first turn, pass `"previous_message_id": null` to opt in without a prior message to compare ag…build-with-claude/cache-diagnostics see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up required, on cache-diagnostics.