I recently built a site using Umbraco 14 and was wondering about the best approach to upgrading to Umbraco 15. Should I always upgrade to the latest version as soon as it's available to stay up-to-date with fixes, or is it better to wait 1–2 versions for stability? I also heard at .NET Conf that Umbraco changed its caching mechanism, and I saw in the breaking changes that model rebuilding (for snapshot types) and precompression were affected. I even ran into some precompression issues in my .NET 8 solution recently. What’s the recommended upgrade path, and are there any potential pitfalls to watch out for when moving from Umbraco 14 to 15? If I'm not using this Snapshot types - is it save to just update the package? Have a great day

You can see some of the breaking changes here: https://umbraco.com/blog/umbraco-15-release-candidate/#breaking

If you are on an sts version (14) you should upgrade. Umbraco 15 is now at 15.2, so a number of bugfixes have been done. The most breaking change is the cache, which in reality means you need to rewrite some code to use a different service here and there. Its decribed in the breaking changes.

General advise on how to upgrade is documented here - https://docs.umbraco.com/umbraco-cms/fundamentals/setup/upgrading It also links to version specific changes, which should help you get to the latest 15. As you're already on 14 I think you will be fine going direct to 15 latest