package:dart_mcp v0.2.0

• Support protocol version 2025-03-26.
  • Adds support for AudioContent.
  • Adds support for ToolAnnotations.
  • Adds support for ProgressNotification messages.
• Save the ServerCapabilities object on the ServerConnection class to make
  it easier to check the capabilities of the server.
• Add default version negotiation logic.
  • Save the negotiated ProtocolVersion in a protocolVersion field for both
    MCPServer and the ServerConnection classes.
  • Automatically disconnect from servers if version negotiation fails.
• Added support for adding and listing ResourceTemplates.
  • Handlers have to handle their own matching of templates.
• Added a RootsTrackingSupport server mixin which can be used to keep an
  updated list of the roots set by the client.
• Added default throttling with a 500ms delay for
  ResourceListChangedNotifications and ResourceUpdatedNotifications. The
  delay can be modified by overriding
  ResourcesSupport.resourceUpdateThrottleDelay.
• Add Sink<String> protocolLogSink parameters to server constructor and client
  connection methods, which can be used to capture protocol messages for
  debugging purposes.
• Only send notifications if the peer is still connected. Fixes issues where
  notifications are delayed due to throttling and the client has since closed.
• Breaking: Fixed paginated result subtypes to use nextCursor instead of
  cursor as the key for the next cursor.
• Breaking: Change the ProgressNotification.progress and
  ProgressNotification.total types to num instead of int to align with the
  spec.
• Breaking: Change the protocolVersion string to a ProtocolVersion enum,
  which has all supported versions and whether or not they are supported.
• Breaking: Change InitializeRequest and InitializeResult to take a
  ProtocolVersion instead of a string.
• Breaking: Change the InitializeResult's instructions to String? to reflect
  that not all servers return instructions.
• Breaking: Change MCPBase to accept a StreamChannel<String> instead of
  a Peer, and construct its own Peer.
• Breaking: Add protocolLogSink optional parameter to connect methods on
  MCPClient.
• Breaking: Move channel parameter on MCPServer.new to a positional
  parameter for consistency.