Webdynpro for ABAP and SAP GUI for HTML use the unified rendering framework as enabler for high performance. Bugs and issues in this framework are solved in unified rendering updates. Also new functions are deployed in this way.
Questions that will be answered in this blog are:
How do I find my current versions for the unified rendering framework?
How to see if there are new patches for the unified rendering framework?
How to execute patches for the unified rendering framework?
Current version of unified rendering framework?
You can get the current version information of the unified rendering framework by starting program WDG_MAINTAIN_UR_MIMES. Then click on the option Show Extended Info:
In case of a webdynpro for ABAP update, you will have to apply the corresponding OSS note from the previous section via the TCI update procedure (see blog on TCI notes). After applying the note, run program WDG_MAINTAIN_UR_MIMES to check the consistency.
The SAP GUI for HTML patches are delivered on kernel level.
After update of a FIORI app UI5 code you will sometimes face issues that the browser or server still holds components from the old app version. This issue is there for both custom developed and for standard SAP UI5 apps. The root cause is the caching at multiple levels to assure highest performance. There are caches on frontend browser, gateway server and backend server.
Questions that will be answered are:
What do I need to do on the browser for refresh?
How do I clear the caches on the gateway frontend server?
How do I clear the caches on the backend server?
Browser cache refresh
After an update of the UI code best to clear the browser cache. In Chrome also: open the application in chrome and use key combination ctrl + shift + R to perform a hard reload.
Or run in Private or Incognito mode.
Best browser for testing is Chrome.
Gateway and backend server cache clearing
Use the following sequence to clear all caches:
1. Execute /IWBEP/CACHE_CLEANUP transaction in ECC system (or other backend system) as well as Gateway system (this is program /IWBEP/R_MGW_MED_CACHE_CLEANUP) .
2. Execute /IWFND/CACHE_CLEANUP transaction in Gateway system with checkbox checked (this is program /IWFND/R_MED_CACHE_CLEANUP).
3. In the gateway system, you need to do the below steps: