 In this video I'm going to show you another workaround to solve this issue with the new dependencies of Saga to use the upslope tool which we need for catchment delineation. In the description of this video you find a link to the GitHub issue which also explains this solution. So we need to find the folder where the Saga descriptive files are stored. So look for the shortcut to the LTR version and open the file location. Then we find this folder with start menu shortcuts and we click right on the one with the LTR version and go to properties to find there the path to executable. Browse to that path, it's in the apps folder and then QGIS LTR, Python, plugins, processing, alks, Saga, description and there you find all the descriptor files. And then it's under TA hydrology, so TA terrain analysis hydrology and then we have the upslope area tool there. And what you need to add there is the pipe symbol and the four. What it does it will point to the correct tool to your hydrology four instead of another version of the two. Save it and open QGIS. Now you'll see you can use the upslope area tool. So let's pick a coordinate of an outlet for which we want to calculate the catchment. Zoom in, click right, copy the coordinate. And then in the upslope tool we add the coordinates and choose the filled DEM and change the method to deterministic D8. And then I can run it, there is the result, if we zoom out we can see the catchment. And the big difference also with the other older version is that we only have the pixels with hundreds, not with zero. So that makes it a little bit easier to create the catchment polygon.