I don't know how I feel about free open source version and then a commercial version that locks features. Something inside me prevents me from even trying such software. Logically I'd say I support the model because open source needs to be sustainable and we need good quality developer tools and software but when it comes to adoption, I find myself reaching for purely open source projects. I think it has to do with features locked behind a paywall. I think I'd be far more open to trying out products where the commercial version offered some enterprise level features like compliance reports, FIPS support, professional support etc but didn't lock features.

For most of the history the main locked feature was just a premium web interface(there were a few more but that was the main draw) that's included in free now and I think the locked features are primarily around most specialised job ordering engines. Things that if you need free you almost certainly don't need. Oban has been very good about deciding what features to lock away.

(I've paid for it for years despite not needing any of the pro features)