generated: '2026-09-17'
method: searched
source: https://developer.seismic.com/seismicsoftware/changelog
description: >-
  Seismic publishes a dated developer changelog on its ReadMe portal, running at roughly two
  release notes per month. Entries are labelled with ReadMe's Added / Improved / Fixed types;
  no entry in the recent window is labelled as breaking.
scheme: dated release notes (calendar month + week), no semantic version tags
current_version: 'integration API v2 (per-route versioning — see lifecycle/seismic-lifecycle.yml)'
url: https://developer.seismic.com/seismicsoftware/changelog
cadence: approximately 2 release notes per month
window: 2026-05 through 2026-09 (recent entries only)
entries:
- title: '2026 September Week 2 release: Updates to existing APIs'
  date: '2026-09'
  type: improved
  breaking: false
- title: '2026 August Week 1 release: Updates to existing APIs'
  date: '2026-08'
  type: improved
  breaking: false
- title: '2026 July Week 4 release: Updates to existing APIs'
  date: '2026-07'
  type: improved
  breaking: false
- title: '2026 July Week 2 release: Updates to existing APIs'
  date: '2026-07'
  type: improved
  breaking: false
- title: '2026 June Week 1 release: New APIs added and updates to existing APIs'
  date: '2026-06'
  type: improved
  breaking: false
  additions: true
- title: '2026 May Week 4 release: New APIs added and updates to existing APIs'
  date: '2026-05'
  type: improved
  breaking: false
  additions: true
- title: '2026 May Week 2 release: New APIs and features added'
  date: '2026-05'
  type: added
  breaking: false
  additions: true
notes:
- >-
  Entry dates are recorded to month precision: the changelog renders relative dates
  ("5 days ago", "about 1 month ago") rather than absolute ones, and the release titles carry the
  month and week. No exact ISO publication date is exposed, so none is asserted here.
- No RSS or JSON feed is offered for the changelog.