Is the SSE 5.3 backwards-compatible with the SSE 5.2?
No, in the sense that if you use interface files (WSDL, XSL and XSD) based on SSE 5.2 (ICD 1.5, schemas 1.4) to register a default interface service, it won’t work. This is because the SSE will generate workflows based on ICD 1.6, schemas 1.6. Yes, in the sense that if you ensure certain conditions you can still use interface files based on ICD 1.5. The migration ensured that services working before it would work also after it but, as explained in the previous item, this is only true until you try to update your service for the first time and you should be very careful when doing so. To use ICD 1.5 based interface files, the workflow also needs to be ICD 1.5 based and thus you need to either develop one or take one which was working previously (normally this is the case when you are transferring a service from the Test Portal to the Operational Portal). It is also mandatory for you to use a Custom interface. Finally, you need to make sure that your backend (e.g. TOOLBOX) is aligned wit
