I've been reviewing Esri's documentation in preparation for an ArcGIS Enterprise upgrade and noticed a slight inconsistency with all of the documentation and videos I have been reviewing.
Per Esri's documentation here (https://enterprise.arcgis.com/en/portal/10.9.1/install/windows/upgrade-portal-for-arcgis.htm), it says uninstall the Portal web adaptor before upgrading Portal, then installing the new web adaptor after the Portal upgrade is complete. The same goes for Server.
However, in every other documentation and demo upgrade video I've seen (including this one https://www.youtube.com/watch?v=WZ4PL1dvm3k&ab_channel=EsriEvents), it says to upgrade Portal first, then uninstall and reinstall the web adaptor.
So, my question is why is the documentation inconsistent, and which is the correct order? I've done previous upgrades before and always did portal/server upgrade first, then upgrade (including uninstalling and reinstalling) the corresponding web adaptor afterwards. But, this is the first time I've seen the documentation change the order of upgrade operations.
I'm under the impression that the order doesn't actually matter, as long as the new version of web adaptor is installed after Portal/Server has been upgraded. But, it's still confusing and leaves me doubting what order is "correct" when I see inconsistencies in the documentation.