generated: '2026-10-09' method: searched source: https://oeapi.eu/v6.0/changelog/CHANGELOG.md docs: https://oeapi.eu/v6.0/#/changelog/CHANGELOG format: Keep a Changelog scheme: semantic MAJOR.MINOR with release candidates (MAJOR.MINOR-rc.#) current_version: 6.0-RC.3 note: Entries are headed "[ ] - <date>"; the 2026-08-25 entry appears several times verbatim in the source. entries: - version: 6.0-RC.3 date: '2026-08-25' breaking: false highlights: ["Fixed vacuum error no-unnecessary-combinator: All specifications with only one option in oneOf or allOf have been eliminated"] - version: 6.0-RC.3 date: '2026-08-24' breaking: false highlights: ["Add errror 409 to all PUT, PATCH and POST endpoints"] - version: 6.0-RC.3 date: '2026-08-19' breaking: false highlights: ["Fixed language description to RFC 5646", "Fixed readonly in ProgrammeOfferingAssociation"] - version: 6.0-RC.3 date: '2026-08-18' breaking: false highlights: ["Fix missing and unused expand", "Fix format of flexibleEntryPeriodEndDateTime", "Fix format in service.yaml"] - version: 6.0-RC.3 date: '2026-07-09' breaking: false highlights: ["Solved filter parameter issue", "Solved content-type issue"] - version: 6.0-RC.2 date: '2026-05-12' breaking: false highlights: ["Solved documentation issue"] - version: 6.0-RC.2 date: '2026-03-13' breaking: false highlights: ["update examples 406"] - version: 6.0-RC.2 date: '2026-02-23' breaking: false highlights: ["minor modifications on associations, attempts and results"] - version: 6.0-RC.2 date: '2026-02-19' breaking: false highlights: ["Fix readonly person in association PUT and readonly state", "Fix required fields in service endpoint"] - version: 6.0.0 date: '2025-12-19' breaking: true highlights: ["make v6 production ready"] note: v6 is a new major version over v5; see https://oeapi.eu/v6.0/#/technical/major-changes