generated: '2026-09-07'
method: searched
source: https://www.fanniemae.com/tech-guide
note: >-
  Fannie Mae publishes no per-API release notes. What it does publish, on a public page, is a dated
  and numbered change series for the contract that governs every external party's access to its
  applications and APIs: the Consolidated Technology Guide (the Software Subscription Agreement) and
  its accompanying Technology Guide Bulletins. Each Guide edition supersedes the prior one in full,
  and each edition ships with a Bulletin summarising the content changes. Bulletins are issued ad
  hoc, not on a schedule. Every entry below is a live, verified PDF or page URL; entry titles and
  dates are quoted from the tech-guide page, and no change contents are summarised here because the
  bulletins are PDF-only.
scheme: >-
  Guides are identified by effective date; Bulletins by a YY-NN number plus an issue date
  (for example Bulletin 26-03, issued April 21, 2026).
current:
  document: Consolidated Technology Guide
  effective: '2026-04-30'
  url: https://www.fanniemae.com/media/document/pdf/consolidatedtechnologyguidepdf-0
  accompanying_bulletin: Technology Guide Bulletin 26-03 (issued April 21, 2026)
  accompanying_bulletin_url: https://www.fanniemae.com/media/document/pdf/techguidebulletinpdf
cadence: ad hoc, as warranted — no predetermined publication schedule
format: PDF
machine_readable: false
archive: https://www.fanniemae.com/tech-guide
pre_consolidation_archive: https://www.fanniemae.com/pre-consolidation-technology-guide-components-related-bulletins-archive
entry_count: 10
entries:
  - version: Bulletin 26-03
    date: '2026-04-21'
    kind: bulletin
    title: Technology Guide Bulletin 26-03
    url: https://www.fanniemae.com/media/document/pdf/techguidebulletinpdf
    accompanies_guide_effective: '2026-04-30'
  - version: Guide effective 2026-04-01
    date: '2026-04-01'
    kind: guide
    title: Consolidated Technology Guide (effective April 1, 2026)
    url: https://www.fanniemae.com/media/document/pdf/consolidated-technology-guideapril1-2026pdf
  - version: Bulletin 26-02
    date: '2026-03-10'
    kind: bulletin
    title: Technology Guide Bulletin 26-02
    url: https://www.fanniemae.com/media/document/pdf/technologyguidebulletinmarch10-2026pdf
  - version: Guide effective 2026-03-09
    date: '2026-03-09'
    kind: guide
    title: Consolidated Technology Guide (effective March 9, 2026)
    url: https://www.fanniemae.com/media/document/pdf/consolidated-technology-guidemarch9-2026pdf
  - version: Bulletin 26-01
    date: '2026-02-17'
    kind: bulletin
    title: Technology Guide Bulletin 26-01
    url: https://www.fanniemae.com/media/document/pdf/technologyguidebulletinfebruary17-2026pdf
  - version: Bulletin 25-03
    date: '2025-11-25'
    kind: bulletin
    title: Technology Guide Bulletin 25-03
    url: https://www.fanniemae.com/media/document/pdf/technologyguidebulletinnov25-2025pdf
  - version: Guide effective 2025-12-23
    date: '2025-12-23'
    kind: guide
    title: Consolidated Technology Guide (effective December 23, 2025)
    url: https://www.fanniemae.com/media/document/pdf/consolidated-technology-guidedec23-2025pdf
  - version: Guide effective 2025-08-12
    date: '2025-08-12'
    kind: guide
    title: Consolidated Technology Guide (effective August 12, 2025)
    url: https://www.fanniemae.com/media/document/pdf/consolidated-technology-guideaugust12-2025pdf
  - version: Bulletin 25-02
    date: '2025-04-17'
    kind: bulletin
    title: Technology Guide Bulletin 25-02
    url: https://www.fanniemae.com/media/document/pdf/technologyguidebulletinapril17-2025pdf
  - version: Bulletin 25-01
    date: '2025-02-05'
    kind: bulletin
    title: Technology Guide Bulletin 25-01
    url: https://www.fanniemae.com/media/document/pdf/technologyguidebulletinfebruary5-2025pdf
gaps:
  - No per-API changelog, release notes feed, or version history is published for any individual Fannie Mae API.
  - The series is PDF-only; there is no RSS/Atom feed, no HTML changelog, and no machine-readable diff.