Bug Fixes

• vertex: percent-encode the project ID, region and model in the request path, so one with a / in it can't send the request to a different path, and throw on an empty project ID or region or one of "." or ".."
• vertex: throw on an empty model, and on one that starts with ;, .; or ..;, such as "..;x", because a server that drops ; and what follows it would read it as an empty or dot segment

Bug Fixes

• google-cloud: percent-encode the project, location and workspace ID in the derived base URL, so one with a / in it can't send the request to a different path, and throw on an empty value or one of "." or ".."

Bug Fixes

• bedrock: throw on an empty model or one of "." or "..", and send the / in an inference profile's ARN as %2F, so the model can't change the request path

Features

• api: add Claude Tag metrics to the analytics summaries and users reports
• api: add reply_mode to Claude Tag Slack channel settings

Chores

• docs: clarify display_name for RBAC Roles created by Anthropic
• docs: clarify plugin delete and skill name conflict descriptions
• docs: clarify when to omit user_profile_id on external keys
• docs: note that a page of plugin shares may be short or empty
• docs: note that Claude Tag settings accept self-hosted runner pools
• docs: update model descriptions

Features

• api: accept user_profile.program_status_updated on organization webhook endpoints
• api: add claude-fable-5-2 and claude-mythos-5-2
• api: add parent organization filtering and grouping to the usage and cost reports
• api: add the sandbox_egress_restricted error to Admin API write methods
• api: add the user_profile.program_status_updated webhook event

Bug Fixes

• api: type the per-user analytics report actor as a union
• client: return null when an API error has no InnerException
• meai: send the output format for a JSON schema with no required array

Chores

• api: remove some error detail types and update descriptions
• docs: say when a work heartbeat does not compare its value
• docs: update model descriptions
• internal: read OpenTelemetry span attributes from generated tables

Refactors

• client: move the retry loop into an internal RetryingExecutor

Features

• api: add error code for ramp limit errors
• api: add error codes for External Key validation failures
• api: add support for signing organization members out everywhere

Bug Fixes

• client: return null when a null enum converts to its raw value

Chores

• docs: describe the type and message of API errors

Documentation

• client: describe the type, message, code and details of API errors
• client: list each method's errors without their descriptions

Features

• api: add error details types and new error type values
• api: add ids filter to list workspaces
• client: add exception classes for HTTP statuses and API error codes, and Body, Type, ApiMessage, ErrorCode and Details on AnthropicServiceException
• client: add RequestID and WorkspaceID to AnthropicApiException

Bug Fixes

• api: move some error details types to the resource they describe
• client: send ; raw in path parameters and reject ";x" and "..;x"
• client: stop percent-encoding @ + & : ! $ ' ( ) * , = in path parameters
• meai: report thinking tokens in usage details

Chores

• docs: clarify plugin reach values
• docs: clarify plugin version description and plugin reach
• docs: clarify plugin version description length
• docs: clarify some API field descriptions
• docs: clarify three error descriptions
• docs: clarify which blocks to send back around a fallback block
• docs: correct Claude Tag direct message notes in usage reports
• docs: reword Dream and RBAC role permission descriptions
• docs: update the telemetry destination headers description
• docs: use the Claude Platform name in analytics filter docs
• internal: share how exception members read the error body

Documentation

• api: show each field's own description for speed

Bug Fixes

• vertex: send the Content-Type header

Features

• api: add GA methods for analytics, spend limits and RBAC
• api: add named beta types for unified metrics and RBAC delete responses
• api: add shared analytics order and increase request actor types
• api: add tool_use_limit_reached_error and compaction_limit_reached_error session error types
• api: add types for analytics group_by and spend limit period filters
• api: add user_profile_id to External Keys and Workspaces

Documentation

• examples: use current model IDs

Bug Fixes

• api: make spend_limit nullable in the spend limit increase request approve response
• api: require always-sent analytics fields and drop the unused project product field
• client: throw the API exception for the status, not InvalidOperationException, when an error response or a stream's error event is JSON but not the expected object
• client: add missing ConfigureAwait(false) in Paginate

Chores

• docs: clarify the Slack channel id description
• docs: clarify what disabling the Compliance API stops
• docs: clarify what the capability_access_all role action grants
• docs: link Dreams model fields to the supported models section
• internal: let releases set the version of Anthropic.Mcp

Documentation

• add a description to the AnthropicBeta type

Bug Fixes

• google-cloud: send user profiles requests to the organization endpoint

Documentation

• google-cloud: update the product name