I don't think you can. But if it's open source and popular, there might be a chance it will have a maintained fork should that happen.
Freemium feature creep might be a sign things are changing for the worst, as in, if more and more features are being added to the premium plan and the free version is stagnating; to the point the target public of the premium version is creeping to average users instead of aiming at commercial or power users.
The post chooses to use Python, where single and double quotes are equivalent and are not a semantic change. In other languages that might be, but that's not the point of the article. A semantic diff is language dependent.
How's this different than a self reflecting agent you can write today? I thought when o1 was announced, while some people were excited, even calling it some sort of proto AGI.
OpenAI is great at raising money and just feeds from the hype.
Same, that's why I stopped using rethink a while ago, even though I loved it.