Sentinelhub is making a change in the default elevation model used by the process that we expose as sar_backscatter.
If you do not specify an elevation model yourself, you will be affected, and thus may see changes in the output. The change is planned for Monday, December 5th, 2022.
If you want to avoid this change, you can consider setting the elevation model to ‘MAPZEN’, but in general the new default should give better results.
More information can be found here: