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

# RFD Updates

> Lifecycle updates for ACP Requests for Dialog

This page tracks lifecycle changes for ACP Requests for Dialog. For broader ACP announcements, see [Updates](/updates).

<Update label="May 17, 2026" tags={["Preview"]}>
  ## Logout Method RFD moves to Preview stage

  The RFD for adding a `logout` method to the protocol has been moved to Preview stage. Please review the [RFD](/rfds/logout-method) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="May 12, 2026" tags={["Preview"]}>
  ## Rust SDK based on SACP RFD moves to Preview stage

  The RFD for basing the Rust SDK on SACP has been moved to Preview stage now that the initial crate import has been upstreamed to [agentclientprotocol/rust-sdk](https://github.com/agentclientprotocol/rust-sdk). Please review the [RFD](/rfds/rust-sdk-v1) for more information on the current proposal and provide feedback before the SDK is stabilized as 1.0.
</Update>

<Update label="May 7, 2026" tags={["Draft"]}>
  ## model\_config Category RFD moves to Draft

  The RFD for the `model_config` category been moved to Draft stage. Please review the [RFD](/rfds/model-config-category) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="April 23, 2026" tags={["Draft"]}>
  ## v2 Prompting RFD moves to Draft

  The RFD for how the prompt lifecycle will work in v2 of the protocol been moved to Draft stage. Please review the [RFD](/rfds/v2/prompt) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="April 23, 2026" tags={["Completed"]}>
  ## session/close RFD moves to Completed

  The RFD for the `session/close` method has been stabilized and is now a part of the protocol. Please review the [documentation](/protocol/session-setup#closing-active-sessions) for more information.
</Update>

<Update label="April 22, 2026" tags={["Completed"]}>
  ## session/resume RFD moves to Completed

  The RFD for the `session/resume` method has been stabilized and is now a part of the protocol. Please review the [documentation](/protocol/session-setup#resuming-sessions) for more information.
</Update>

<Update label="April 22, 2026" tags={["Draft"]}>
  ## Streamable HTTP & WebSocket Transport RFD moves to Draft stage

  The RFD for standardizing a remote ACP transport based on MCP Streamable HTTP with a WebSocket upgrade has been moved to Draft stage. Please review the [RFD](/rfds/streamable-http-websocket-transport) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="April 14, 2026" tags={["Preview"]}>
  ## session/resume RFD moves to Preview stage

  The RFD for adding a `session/resume` method to the protocol has been moved to Preview stage. Please review the [RFD](/rfds/session-resume) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="April 14, 2026" tags={["Preview"]}>
  ## session/close RFD moves to Preview stage

  The RFD for allowing agents to close a given session has been moved to Preview stage. Please review the [RFD](/rfds/session-close) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="March 27, 2026" tags={["Draft"]}>
  ## Custom LLM Endpoint RFD moves to Draft stage

  The RFD for allowing clients to specify custom provider configuration has been moved to Draft stage. Please review the [RFD](/rfds/custom-llm-endpoint) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="March 24, 2026" tags={["Draft"]}>
  ## Additional Directories RFD moves to Draft stage

  The RFD for allowing clients to specify additional directories for the agent to access has been moved to Draft stage. Please review the [RFD](/rfds/additional-directories) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="March 9, 2026" tags={["Completed"]}>
  ## ACP Registry RFD moves to Completed

  The RFD for the initial version of the ACP Registry has been completed. Please review the [documentation](/get-started/registry) for more information.

  ## session\_info\_update Notification RFD moves to Completed

  The RFD for the session\_info\_update notification has been stabilized and is now a part of the protocol. Please review the [documentation](/protocol/session-list#updating-session-metadata) for more information.

  ## session/list RFD moves to Completed

  The RFD for the session/list method has been stabilized and is now a part of the protocol. Please review the [documentation](/protocol/session-list) for more information.
</Update>

<Update label="February 24, 2026" tags={["Draft"]}>
  ## Next Edit Suggestions RFD moves to Draft stage

  The RFD for allowing agents to provide next edit suggestions has been moved to Draft stage. Please review the [RFD](/rfds/next-edit-suggestions) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## session/close RFD moves to Draft stage

  The RFD for allowing agents to close a given session has been moved to Draft stage. Please review the [RFD](/rfds/session-close) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## Elicitation RFD moves to Draft stage

  The RFD for allowing agents to elicit user input has been moved to Draft stage. Please review the [RFD](/rfds/elicitation) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## Boolean Config Option RFD moves to Draft stage

  The RFD for adding boolean config options to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/boolean-config-option) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="February 20, 2026" tags={["Draft"]}>
  ## Delete in Diff RFD moves to Draft stage

  The RFD for indicating whether a diff resulted in a file deletion has been moved to Draft stage. Please review the [RFD](/rfds/diff-delete) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="February 18, 2026" tags={["Draft"]}>
  ## Message ID RFD moves to Draft stage

  The RFD for adding message ids to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/message-id) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="February 18, 2026" tags={["Preview"]}>
  ## session/list RFD moves to Preview stage

  The RFD for the session/list method has been moved to Preview stage. Please review the [RFD](/rfds/session-list) for more information on the current proposal and provide feedback before the feature is stabilized.

  ## session\_info\_update RFD moves to Preview stage

  The RFD for the session\_info\_update notification has been moved to Preview stage. Please review the [RFD](/rfds/session-info-update) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="February 10, 2026" tags={["Preview"]}>
  ## ACP Registry RFD moves to Preview stage

  The RFD for the ACP Registry has been moved to Preview stage. Please review the [RFD](/rfds/acp-agent-registry) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="February 4, 2026" tags={["Completed"]}>
  ## Session Config Options RFD moves to Completed

  The RFD for adding more generic Session Config Options to the protocol has been stabilized and is now a part of the protocol. Please review the [documentation](/protocol/session-config-options) for more information.
</Update>

<Update label="February 4, 2026" tags={["Draft"]}>
  ## session/delete moves to Draft stage

  The RFD for allowing clients to delete a given session has been moved to Draft stage. Please review the [RFD](/rfds/session-delete) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## Logout method moves to Draft stage

  The RFD for allowing clients to logout from an agent connection has been moved to Draft stage. Please review the [RFD](/rfds/logout-method) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="January 15, 2026" tags={["Draft"]}>
  ## Rust SDK based on SACP RFD moves to Draft stage

  The RFD for basing the Rust SDK on SACP has been moved to Draft stage. Please review the [RFD](/rfds/rust-sdk-v1) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="January 15, 2026" tags={["Preview"]}>
  ## Session Config Options RFD moves to Preview stage

  The RFD for adding more generic Session Config Options to the protocol has been moved to Preview stage. Please review the [RFD](/rfds/session-config-options) for more information on the current proposal and provide feedback before the feature is stabilized.
</Update>

<Update label="January 14, 2026" tags={["Draft"]}>
  ## Authentication Methods RFD moves to Draft stage

  The RFD for creating additional types of authentication methods has been moved to Draft stage. Please review the [RFD](/rfds/auth-methods) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="January 1, 2026" tags={["Draft"]}>
  ## Agent Registry RFD moves to Draft stage

  The RFD for creating an Agent Registry has been moved to Draft stage. Please review the [RFD](/rfds/acp-agent-registry) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## Session Usage RFD moves to Draft stage

  The RFD for adding a new usage\_update variant on the session/update notification and usage field on prompt responses in the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-usage) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="December 31, 2025" tags={["Draft"]}>
  ## Proxy Chains RFD moves to Draft stage

  The RFD for adding proxy chain functionality in the protocol has been moved to Draft stage. Please review the [RFD](/rfds/proxy-chains) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="December 11, 2025" tags={["Draft"]}>
  ## Agent Telemetry Export RFD moves to Draft stage

  The RFD for providing more guidance on how agents should export telemetry has been moved to Draft stage. Please review the [RFD](/rfds/agent-telemetry-export) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="December 3, 2025" tags={["Draft"]}>
  ## session\_info\_update notification RFD moves to Draft stage

  The RFD for adding a new session\_info\_update variant on the session/update notification in the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-info-update) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## \_meta Propagation RFD moves to Draft stage

  The RFD for providing more guidance on how the \_meta parameter should be used within the protocol has been moved to Draft stage. Please review the [RFD](/rfds/meta-propagation) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="November 26, 2025" tags={["Draft"]}>
  ## session/resume RFD moves to Draft stage

  The RFD for adding a session/resume method to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-resume) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="November 20, 2025" tags={["Draft"]}>
  ## \$/cancelRequest RFD moves to Draft stage

  The RFD for adding a \$/cancelRequest method to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/request-cancellation) for more information on the current proposal and provide feedback as work on the implementation begins.

  ## session/fork RFD moves to Draft stage

  The RFD for adding a session/fork method to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-fork) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="November 3, 2025" tags={["Draft"]}>
  ## Session Config Options RFD moves to Draft stage

  The RFD for adding more generic Session Config Options to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-config-options) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>

<Update label="October 31, 2025" tags={["Draft"]}>
  ## session/list RFD moves to Draft stage

  The RFD for adding a session/list method to the protocol has been moved to Draft stage. Please review the [RFD](/rfds/session-list) for more information on the current proposal and provide feedback as work on the implementation begins.
</Update>