generated: '2026-09-06'
method: searched
source: https://github.com/AcadiaSoft/simm-lib/blob/master/README.md, GitHub tag and
  commit history, plus live host probes on 2026-09-06
subject: 'Scoped to the one public artifact Acadia ships (simm-lib) and to the company''s
  own web estate. There is no public lifecycle policy for the AcadiaPlus product APIs,
  because there is no public API contract.'
api_versioning:
  scheme: null
  detail: Not published. No public API contract exists to version.
status_page:
  present: false
  url: null
  detail: 'Probed status.acadia.inc and status.acadiasoft.com on 2026-09-06 — neither
    resolves. No status page is reachable on any Acadia host, and the LSEG post-trade
    pages link none. No `StatusPage` pointer is emitted.'
deprecation_policy:
  present: false
  url: null
  detail: 'No formal deprecation policy, no documented Sunset/Deprecation (RFC 8594)
    header behaviour. No `Deprecation` pointer is emitted.'
sla:
  present: false
  detail: Not published publicly; the LSEG Margin Manager page routes all technical
    questions to a contact form.
corporate_lifecycle:
  event: acquisition
  acquirer: London Stock Exchange Group (LSEG)
  announced: '2022-12-19'
  evidence: https://www.lseg.com/en/media-centre/press-releases/2022/lseg-to-acquire-acadia
  prior_event: LSEG acquired a circa 16% minority stake in AcadiaSoft in June 2018.
  brand_state: 'Acadia is now branded "Acadia - An LSEG Business" and its product suite
    is presented as the Streamline and Analyse pillars of LSEG Post Trade.'
  web_estate: 'acadia.inc 301s wholesale to www.lseg.com/en/post-trade/solutions/acadia
    (probed 2026-09-06); acadiasoft.com no longer resolves at the apex. DMARC on both
    Acadia domains reports to rua@lseg.com.'
artifact_lifecycle:
- artifact: simm-lib
  state: end-of-line
  evidence: https://github.com/AcadiaSoft/simm-lib/blob/master/README.md
  statement: '"For all future versions of SIMM, visit Open-Source Risk Engine" — a
    first-party, dated succession notice. The commit that added it (cefc23b4,
    2023-07-25) is the newest commit on master and its whole content was adding that
    pointer, so the last thing Acadia did to this repository was hand it off.'
  successor: https://github.com/OpenSourceRisk/Engine
  last_release: {version: 2.5.0, date: '2022-09-19'}
  last_commit: '2023-07-25'
  repository_archived: false
  note: 'The repository is NOT flagged archived on GitHub, so the succession notice
    is discoverable only by reading the README. That is a real discoverability gap
    for the 38 forks and 62 stargazers still pointed at it.'