Microsoft 365 Message Center Archive

Use this skill to search, summarize, and cite Microsoft 365 Message Center messages and Microsoft 365 Roadmap posts from mc.merill.net.

Source Of Truth

This archive is for reference only. Microsoft 365 Message Center posts are tenant-specific. Always tell users to verify applicability, timing, and final details in their own tenant's Microsoft 365 Message Center.

Primary URLs

• Agent guide: https://mc.merill.net/llms.txt
• Search index: https://mc.merill.net/messages-index.json
• RSS feed: https://mc.merill.net/rss.xml
• Sitemap: https://mc.merill.net/sitemap.xml
• Home: https://mc.merill.net/

Workflow

1. Read https://mc.merill.net/llms.txt first for current guidance and URLs.
2. Use https://mc.merill.net/messages-index.json to search by Message Center ID, Roadmap ID, title, source, service, category, tag, date, or summary text.
3. Open the record's Url field for the canonical detail page before citing or summarizing.
4. Cite the canonical detail page URL, usually https://mc.merill.net/message/{id}.
5. Include the tenant-specific Message Center caveat when answering about Message Center posts.

Search Guidance

Use the compact JSON index for broad discovery. It includes active Message Center messages, Microsoft 365 Roadmap posts, and archived Message Center messages. Prefer exact ID matches when the user provides an ID such as MC123456 or a Roadmap item number.

For recent change feeds, use https://mc.merill.net/rss.xml. The RSS feed is limited to the latest active Message Center and Roadmap items, so do not use it as the only source for historical searches.

Answer Guidance

• Distinguish between Message Center and Roadmap sources when relevant.
• Mention important dates such as published, last updated, rollout start, or rollout end when available.
• Mention affected services and categories when they help answer the question.
• Do not imply the archive contains every tenant-specific post.
• Do not treat archived or expired Message Center posts as currently applicable without checking the user's tenant.

Citation Caveat

When citing Message Center posts, include wording like:

"Message Center posts are tenant-specific, so verify applicability in your own Microsoft 365 admin center."