The older version will get replaced yes, but you can always uninstall and go back to a previous version - they're all available under github.com/phw198/Outlo...
Might be worth taking a backup of your settings.xml file first to make rollback easier if you need.

Fantastic! Really pleased Stripe worked - I've spent the last few days setting that up and you're the first to try it out 🥇

Hi and thanks for looking to support with a donation ☺️

I've just been adding the ability to donate via Stripe - take a look and see if that helps! www.outlookgooglecalendarsync.com/donate

Thanks!! Do you have a link to your blog?
Merry Christmas :-)

Are you and to show the issue you are seeing? The Google app is definitely checked and verified; the Microsoft app isn't - is that what you meant?

This blog post has links to it as well as guidance on deploying and running it - www.outlookgooglecalendarsync.com/blog/2025/06...

This blog post has links to it as well as guidance on deploying and running it - www.outlookgooglecalendarsync.com/blog/2025/06...

Have you come across phw198.github.io/OutlookGoogl...? I developed this open source project for over a decade now for the exact reason you describe...

Thanks for asking! PayPal should let you pay in USD (though it does charges a poor foreign exchange rate), but I can only receive donations in the one currency of GBP.
OGCS has an option to start the application on system startup - have you tried that?

At over £100 its more expensive though, so any financial support is appreciated 👍
www.paypal.com/cgi-bin/webs...

Meanwhile, the next alpha release should be coming through shortly...