go~mus is continuously developed - the platform releases weekly, larger features quarterly. This page gives an overview of version state and points to the authoritative detail-changelogs.
What is coming next, with concrete dates and codenames, lives on the release roadmap.
API v4 is stable
The go~mus REST API in major version 4 is the stable contract version. Current minor version: 4.5.x.
We actively avoid breaking changes. New features ship additively - existing endpoints and response shapes stay. If a major step becomes foreseeable, we announce it well in advance in the API docs and per existing customer.
The OpenAPI spec of your instance lives publicly at https://<instance>.gomus.<tld>/api-docs/. JSON spec directly at /api-docs/v4/swagger.json for tooling and SDK generation.
Version state per component
| Component | State | Authoritative source |
|---|---|---|
| go~mus platform (system) | 4.2.x | version endpoint GET /api/v4/version on your instance |
| go~mus REST API | 4.5.x stable | OpenAPI spec |
| @gomusdev/web-components | active | npm changelog + storybook |
| go~scanner app | active | App Store and Play Store - version history on the respective store page |
| Annual pass app | active | App Store - version history on the store page |
We do not list patch version numbers here because the external sources keep them authoritative and up-to-date. What you see above is the major/minor version that only changes on larger steps.
Release cadence
- Platform backend - weekly deployments, bug fixes and additive features with rolling patch levels
- Larger features - quarterly, with advance communication to existing customers
- API major bumps - extremely rare, with a long transition window and migration path
- Web components and apps - their own release cycles, see the authoritative sources above
Platform release notes
- 4.2.15 "J. Fred Muggs" - rollout 15 May to 15 June 2026
Where to find detailed release notes
- Existing go~mus customers: detailed release notes per platform release in the go~mus back office
- API changes and migration guidance: support@giantmonkey.de
- Component-specific changelogs: linked per row in the table above
Cultural Index (CIX)
In preparation. First version in 2026. Once the API stabilises, version state and sources will be added here.