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betaPublisher announcementTeamwork and communications | Messaging · October 2026

Teamwork and communications | Messaging: 1 API change passage

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Added support for setting and unsetting custom emoji reactions on chat messages by specifying a display name ( displayName ), service-issued identifier ( reactionId ), or both. For more information, see chatMessageReaction .

1 individual passage citations
1 API documentation links

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What changed

First observed 21 Oct 2026

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An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

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