---
specification: API Commons Lifecycle
specificationVersion: '0.1'
provider: Université de Montréal
providerId: universite-de-montreal
generated: '2026-08-30'
method: probed
source: live probes plus the institution's published documentation, 2026-08-30
description: >-
  Versioning and lifecycle posture for Université de Montréal's programmable surfaces. The
  institution runs a URI-versioned API with a public change log — unusual discipline for a
  university — but has not touched the documentation in over two years, and the page still frames
  the live production base as a test environment.
surfaces:
- surface: SADVR REST API (Vitrine-Recherche)
  x-operator: institution
  versioning: uri-path
  current_version: '1.8'
  detail: >-
    The version is a path segment: /vitrine/rest/api/{version}/umontreal/. Probing 1.6, 1.7, 1.9
    and 2.0 on 2026-08-30 returned 404 for all four; only 1.8 answers. Older versions are
    therefore removed rather than deprecated in place, with no sunset notice and no Deprecation
    or Sunset header on any response.
  change_log:
    published: true
    title: API REST - Changements par rapport aux versions antérieures
    location: https://wiki.umontreal.ca/spaces/DOC/
    detail: >-
      UdeM maintains a dedicated page recording what changed between API versions, linked from
      the technical description. A published, versioned change record is the strongest single
      governance signal in this institution's footprint.
  documentation_freshness:
    last_updated: '2024-02-08'
    author: Luc Grondin
    age_at_probe: 2 years 6 months
    detail: >-
      The page still describes the 1.7 root as "available only for the test environment" and
      promises the documentation will be updated once production is the only base. Production is
      1.8 and has been for some time; the promise was not kept. Three route names in the service
      table no longer resolve.
  project_origin:
    programme: Service d'accès aux données de la Vitrine-Recherche (SADVR)
    period: 2015-2016
    built_by: Centre d'expertise numérique pour la recherche (CEN-R), Université de Montréal
  forward_design:
    detail: >-
      The /umontreal/ path segment was deliberately reserved so the same API could later serve
      Université Laval, Sherbrooke and other Québec institutions. Ten years on, umontreal is the
      only tenant observed.
  status: live
- surface: PAPYRUS institutional repository
  x-operator: tenant
  versioning: platform
  current_version: DSpace 8 (Scholaris)
  detail: >-
    papyrus.bib.umontreal.ca now 301s to umontreal.scholaris.ca — the repository migrated from a
    self-hosted DSpace to Scholaris, the CRKN-hosted national DSpace service. The legacy hostname
    still resolves and redirects, which is the right way to retire a scholarly host. Lifecycle is
    set by Scholaris, not by UdeM.
  status: live
- surface: Borealis Dataverse (UdeM collection)
  x-operator: tenant
  versioning: platform
  current_version: Dataverse v6.x
  detail: >-
    Version cadence is Borealis / Scholars Portal's. UdeM operates a collection inside a shared
    national instance and has no control over the API version it is served.
  status: live
- surface: UdeM Shibboleth Identity Provider
  x-operator: institution
  versioning: metadata
  detail: >-
    Lifecycle is expressed as SAML metadata rather than an API version. The IdP still advertises
    SAML 1.1 and the legacy urn:mace:shibboleth:1.0 AuthnRequest profile alongside SAML 2.0 —
    long-obsolete protocols kept live for old service providers. The metadata carries a commented-out
    Redirect SLO binding, evidence the document is hand-maintained.
  status: live
retired:
- surface: Dataverse product contract (36 OpenAPI documents)
  removed: '2026-08-30'
  reason: >-
    Not a Université de Montréal surface. These were the Dataverse product's own API description,
    harvested from Borealis and saved under the institution's slug, then re-based by our own
    refine step onto umontreal.scholaris.ca — a DSpace host that does not serve the Dataverse API
    at all. Removed under the university pipeline's operator rule; the tenant relationship with
    Borealis is retained as an apis[] entry.