I was on version 4.1.7, just upgraded to 4.1.8 and now find in my Paypal admin page the following message: "This plugin is currently in BETA testing stage, some functions may work unstable.Please test it carefully before use." I'm concerned. Has something gone wrong with this plugin? I am certainly not using it for testing, because I had no such warning in 4.1.7, I am using it on a live site.
There is nothing wrong, and the plugin has not been changed. We just added this notice for plugins marked as beta and alpha. Once we get enough confirmation that rebills and cancellations are handled correctly, beta status will be removed.