Migrating off ConversationSummaryMemory or ConversationSummaryBufferMemory

Follow this guide if you're trying to migrate off one of the old memory classes listed below:

Memory Type	Description
ConversationSummaryMemory	Continually summarizes the conversation history. The summary is updated after each conversation turn. The abstraction returns the summary of the conversation history.
ConversationSummaryBufferMemory	Provides a running summary of the conversation together with the most recent messages in the conversation under the constraint that the total number of tokens in the conversation does not exceed a certain limit.

Please follow the following how-to guide on summarization in LangGraph.

This guide shows how to maintain a running summary of the conversation while discarding older messages, ensuring they aren't re-processed during later turns.