If you are receiving an error message from PlanSwift 9.5 when attempting to update to PlanSwift 10.0; It is because you need to run a full install of PlanSwift 10.  We have changed the check for updates version to show a link to the download for PlanSwift 10. You should now see a screen that looks like this: 

This should start a download for the PlanSwift 10 installer .exe file.  You can also click here to download PlanSwift 10 as well. 

If you want to install over top of the PlanSwift 9 directory, you can do so. This option will use all your old jobs. Just make sure you have the directory set to where you installed. Below is a screenshot showing the default location that PlanSwift installs to and a prompt asking to over-write. 

If you choose to install to a new directory, you can easily put your jobs in PlanSwift 10 just by copying over your jobs using File Explorer. Navigate to "C:\Program Files (x86)\PlanSwift9\Data\Storages\Local", copy the jobs folder, then you can merge it into the jobs folder on the PlanSwift 10 install, 

"C:\Program Files (x86)\PlanSwift10\Data\Storages\Local"

(Notice the only difference by the default installs are the 9 and the 10 after PlanSwift.) 

Best practice is to back up before updating just in case something does go wrong. If you can, make a copy of your data folder from PlanSwift 9, "
C:\Program Files (x86)\PlanSwift9\Data" and save it somewhere safe!