It would be useful to explain why ZJIT exists given that there's already YJIT.
Also, what's the long-term plan for YJIT.
Also, what's the long-term plan for YJIT.
In isolation, having to switch from YJIT to ZJIT isn't that bad, but this same type of churn happens across so much of the frameworks and technologies that my company uses that in aggregate it becomes quite an annoyance.
With any luck, this performance in the next year or two will be enough to make it a happy change. "Damn, free money" etc
Not only do you get them for free, you get performance improvement for free. And YJIT is still supported and not depreciated. Not only is Ruby on Rails dont have churn anywhere near the order of magnitude of JS world. It is perhaps one of the stablest and non-moving framework and languages, to the point it is moving slowly and boring compared to even modern PHP and Python.
I dont even work on YJIT or ZJIT but I find this entitlement on OSS, even when you are getting newer upgrade and improvement for free, for all the benefits it provides while having so little downside being called "random tech debt busywork" frankly very rude.