Understanding the differences between versions helps you choose the right license. The free version imposes several limitations to encourage upgrades:
Lifetime codes never expire, but they only work with the major version you purchased. Major version upgrades (e.g., v2 to v3) may require an upgrade fee.
That's great! We keep your previous purchases on your account page in the store - both nightly and release builds can be found there with the commercial license that you purchased.