specification: API Commons ChangeLog
specificationVersion: '0.1'
provider: Clearstream
providerId: clearstream
generated: '2026-09-05'
modified: '2026-09-05'
method: searched
source: >-
  Clearstream resource library operational-news and announcements feeds, and the connectivity
  section's Clearstream API services page — all fetched HTTP 200 on 2026-09-05. Entry titles below
  were read from the individual notice pages, each of which returned 200.
description: >-
  Clearstream publishes no API-specific changelog or release-notes feed. What it does publish, and
  has for years, is a dated operational-news and announcements stream in its resource library —
  the channel a post-trade client is contractually expected to read, covering service changes,
  connectivity changes and incidents across ClearstreamXact, SWIFT and the CSD platforms. That
  stream is recorded here as the provider's change channel; it is not a semantic-versioned API
  changelog and is not presented as one.
scheme: dated operational notices (no version numbers)
api_changelog_published: false
current_versions_observed:
  - surface: Clearstream API Platform support client
    version: v4.2606XP_POST.5
    observed: '2026-09-05'
    url: https://api-t2s-test.clearstream.com/ui/support.html
  - surface: Clearstream API Playground (/playground/v1/info)
    version: 1.221101XP.12
    source: Clearstream API Developer Guide example response
  - surface: Clearstream API Developer Guide
    version: August 2025 edition
    date: '2025-08-22'
    url: https://www.clearstream.com/caas/v1/media/2934048/data/3fa3fec668d8dd198e9bed4df879b26b/api-developer-guide.pdf
    note: >-
      The API services page shows "Last Updated 22.08.2025". An earlier November 2022 edition is
      still reachable at a different media path, so the guide is revised roughly annually.
entries:
  - date: '2026-09-02'
    title: 'Swift and Xact Web Portal: ICSD notifications delay - Update II'
    kind: incident
    breaking: false
    url: https://www.clearstream.com/clearstream-en/res-library/ops260902-5539126
  - date: '2026-09-01'
    title: Clearstream Fund Centre response to Swift communication
    kind: service notice
    breaking: false
    url: https://www.clearstream.com/clearstream-en/res-library/ops260901-5537098
  - date: '2026-08-25'
    title: Default communication test
    kind: operational test notice
    breaking: false
    url: https://www.clearstream.com/clearstream-en/res-library/ops260825-5454174
channels:
  - name: Operational news
    url: https://www.clearstream.com/clearstream-en/res-library/operational-news
  - name: Announcements
    url: https://www.clearstream.com/clearstream-en/res-library/announcements
  - name: Releases and initiatives
    url: https://www.clearstream.com/clearstream-en/res-library/releases-and-initiatives
  - name: Deutsche Börse Group API Platform release notes
    url: https://docs.developer.deutsche-boerse.com/blog
    note: Platform-level notes for the group API platform Clearstream publishes its APIs into.
machine_readable: false
machine_readable_note: >-
  The notice list is rendered client-side; there is no RSS/Atom or JSON feed for operational news,
  so an agent cannot subscribe to Clearstream's change stream without scraping.
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com