Older app frequent crashes fixed by creating a new version?

I’ve got a bunch of apps in the App Store and one of the more complicated ones was reported to be crashing quite often. It was released in 2017. I recently released a new version. I couldn’t really find any reason for the crashes, but the new version has eliminated almost all the crashes. Is this just improvements in the compiler or Xojo since 2017?

Aside: I discovered by accident that the Xcode Organizer shows all my apps and I can access crash reports for my apps. Who knew? I tried symbolicating the crash reports with an app named MacSymbolicator but didn’t really have any luck.