generated: '2026-08-30'
method: probed
source: live probes plus the umd-lib GitHub organisation and opendata.lib.umd.edu, 2026-08-30
x-operator: institution
provider: University of Maryland College Park
providerId: university-of-maryland-college-park
description: >-
  Versioning, change communication and deprecation posture for the surfaces the University of
  Maryland operates itself. The institution runs its library API estate as ordinary software
  rather than as a versioned product: source is public and actively committed, but there is no
  version negotiation, no deprecation policy and no changelog aimed at API consumers.
versioning:
  strategy: none
  detail: >-
    The Website Tools API carries info.version 0.1.0 — the FastAPI default, never bumped — and no
    version segment in its path. The OAI-PMH endpoints negotiate protocolVersion 2.0, which is the
    protocol's version, not the deployment's.
  evidence:
  - url: https://api.www.lib.umd.edu/api/libtools/openapi.json
    status: 200
    note: 'info.version: 0.1.0, servers: [{url: /api/libtools}] — no version path segment.'
  - url: https://api.fcrepo.lib.umd.edu/oai/api?verb=Identify
    status: 200
    note: protocolVersion 2.0, granularity YYYY-MM-DDThh:mm:ssZ.
deprecation:
  policy_published: false
  sunset_header: false
  detail: No deprecation policy, Sunset header, or end-of-life notice found on any surface.
change_communication:
  changelog: false
  blog:
    url: https://opendata.lib.umd.edu/posts/
    status: 200
    note: >-
      A service-announcement blog on the Open Data site — four posts in 2026 announcing new
      services and a site migration. It is announcement, not a machine-readable changelog, and
      carries no breaking-change notices.
  atom_feed:
    url: https://opendata.lib.umd.edu/index.xml
    note: Hugo feed advertised by the Open Data site.
  source_of_truth:
    url: https://github.com/umd-lib
    status: 200
    note: >-
      UMD Libraries develop in the open. Public repositories back every surface in this profile —
      website-libtools (the Website Tools API), papaya (IIIF Presentation), archelon and
      umd-fcrepo-* (digital collections), avalon (A/V), DSpace and dspace-angular (DRUM),
      umd-lib-opendata (the Open Data site). Commit activity is current.
availability_events:
- date: '2026-08-30'
  surface: DRUM institutional repository
  status: 503
  detail: >-
    drum.lib.umd.edu and its api.drum.lib.umd.edu API host served a "Maintenance" page for the
    duration of this review. No status page, no maintenance window notice, and no Retry-After
    were published anywhere the public could find them.
gaps:
- No status page. status.umd.edu does not complete a TLS handshake and no library status host was found.
- info.version has never moved off the framework default.
- No Sunset or Deprecation headers on any operation.