M365 Archive

About this archive

I'm Merill Fernando. I build tools and write about Microsoft 365 and Microsoft Entra to help admins keep up with constant change.

Why I built this

Message Center posts are useful, but they are hard to link to, search, and reference outside the Microsoft 365 admin center. I built this archive so posts can be found quickly and shared from places like Entra.News.

This site is for reference only. Message Center posts are customized by tenant, so always use your own tenant's Message Center as the source of truth.

How it works

A scheduled job reads Message Center posts from the Microsoft 365 test tenants through Microsoft Graph, merges what each tenant can see, saves each post for history, and publishes a searchable static site.

The site also imports Microsoft 365 Roadmap RSS items, generates static pages, and exposes sitemap, RSS, and AI-friendly index files for discovery.

Help improve tenant coverage

Some entries may be missing, especially posts shown only to EDU, government, or tenants with additional products and licenses. I'm always eager to connect with folks who can help make the archive more complete.

If you have a test tenant and can create a read-only service principal for Message Center access, please reach out through LinkedIn, X, or Bluesky.

Release notes

August 22, 2026

  • Table columns are now sortable. Click ID, Title, or Last updated to sort, and click again to reverse it. While searching, sorting applies to every match rather than only the results already loaded.
  • Fixed the default ordering of the archive. Expired posts were listed after every active and Roadmap post instead of being merged into the date order, so the browse view now shows all posts newest first.
  • Search results now favour recent posts. Among matches of comparable relevance the newest one ranks first, which suits change alerts, while a decisively better match still wins however old it is.
  • Added an RSS link to the site header so the existing feed of the latest 500 Message Center and Roadmap posts is easier to find.
  • Replaced the ID and title filters with full-text search across every post, including the full body text of expired posts. Search runs entirely in the browser against a pre-built Pagefind index, ranks results by relevance, highlights the matched words in context, and still honours the source and service filters.
  • The archive now collects Message Center posts from more than one source tenant and merges them, so posts and details that are only visible to a tenant with different licensing are included. When the same post comes from several tenants, the most recently updated and most detailed copy is kept.
  • The site now rebuilds every four hours instead of twice a day, so new and updated posts appear here sooner after Microsoft publishes them.

August 3, 2026

  • Added automatic Discord notifications for newly discovered Microsoft Entra Message Center posts, with durable delivery tracking and links to their archived pages. Documentation and Message Center notifications now share the Entra Scout webhook identity while retaining distinct message formats. Message Center matching includes Entra product labels and title-only Entra mentions.

May 4, 2026

  • Linked Message Center IDs that appear in post summaries, in addition to the post body.
  • Added a metadata cards panel to version comparison and snapshot pages so changes to fields like tags, severity, status, and release phase are visible at a glance alongside the body diff.
  • Smooth-scroll when jumping to in-page sections like Version history, with a brief highlight pulse on arrival. Honors the operating system's reduced-motion preference.
  • Reworked the Version history card so the two most common comparisons — latest vs previous and latest vs original — are one-click primary buttons at the top, with a summary line showing how many times the post has been updated since its original publish date.

May 3, 2026

  • Added click-to-enlarge image previews on Message Center and Roadmap detail pages, with a fullscreen lightbox and keyboard support.
  • Added per-message version history with a timeline of prior versions, dedicated snapshot pages for each version, and inline visual diffs (additions in green, deletions in red) comparing any two versions of a Message Center or Roadmap post.
  • Linked plain-text references between Message Center posts inside body content, added a Related posts panel showing References and Referenced by, and exposed those edges in messages-index.json for AI and search consumers.

May 2, 2026

  • Added Microsoft 365 Roadmap posts alongside Message Center posts, with source labels, icons, filtering, and detail pages.
  • Added archived Message Center support, including archive-only detail pages, expired badges, and expired announcement banners.
  • Improved home page performance with precomputed service filters and natural incremental row loading.
  • Added searchable multi-select service filtering, wider fixed-width dropdown behavior, and source filters for Message Center and Roadmap.
  • Added SEO and sharing support with canonical metadata, Open Graph and Twitter cards, sitemap, robots file, and a branded social image.
  • Added AI-friendly discovery through llms.txt and a compact messages-index.json for agents and search tools.
  • Added a skills.sh-compatible agent skill and Skill page for AI-assisted archive search and canonical citation.
  • Added a static RSS feed with the latest 500 active Message Center and Roadmap items.
  • Added this About page, updated homepage guidance about tenant-specific Message Center posts, and added top navigation links.
  • Updated dependencies to clear Dependabot vulnerabilities and moved the site to Next.js 15.
  • Improved the data refresh script, including more reliable Roadmap fetching on GitHub Actions.