Microsoft Teams: “Summarize thread” replaces “Highlights from this conversation” in post/reply channels

Microsoft Teams will replace “Highlights from this conversation” with “Summarize Thread” in post/reply channels starting mid-August 2025. This new feature, enabled by default, summarizes conversations over 1000 characters for a consistent experience across channels, requiring no admin setup. Inform users and update training accordingly. Introduction We’re enhancing threaded channel experiences by extending the thread summarization feature to post/reply channels. This update replaces the Highlights from this conversation option in the More options menu with Summarize Thread, providing a consistent and improved way to generate conversation summaries across all channel types. When this will happen General Availability: Rollout will begin in mid-August 2025 and is expected to complete by mid-September 2025. How this affects your organization Previously, users could select Highlights from this conversation to summarize posts and replies. This option is now replaced with Summarize Thread, which shows up for conversations with more than 1000 characters. This new option offers a more intuitive and consistent experience across threaded and post/reply channels. The feature is enabled by default on both desktop and mobile and does not require admin configuration. Figure i. Find the Summarize Thread option in the More Options menu if there are a minimum of 1000 characters in a conversation View image in new tab Figure ii: Your summary shows up on both desktop and mobile View image in new tab What you can do to prepare Compliance considerations Inform users about the updated summarization option. Update internal training materials or documentation to reflect the new label and functionality. No compliance considerations identified, review as appropriate for your organization. Message ID: MC1134178

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