See 3.40 release notes for major version changes.
- Admin: Fix issue saving theme
- Styling: Fix invisible/poor contrast buttons in layer manager on some themes
- Dataview: Fix an issue in dataview read when using filter
- Features API: Change PATCH id type from object to int
- Features API: Rename from Data API to fix name collision (fixes predefined areas functionality)
- Swagger: Explicitly set root url (siteurl app setting)
Fixes swagger docs behind proxy where server host name differs from client host name.