Dataverse, and new terms for picklists, fields and more. This has been described in detail by many others in the community like Jukka Niiranen. However Microsoft are saying that there will be no new API, that all API:s will stay the same so this article is just going to discuss this subject briefly.
First of all, they will, of course do exactly what they are saying. The current WebAPI will of course be available for many years to come as we have seen the old 2011 SOAP API still be available and used a lot, still today, often for the reason that there isn’t full functional parity between the API:s.
Some tools allow you to seamlessly choose between the API:s, like Kingswaysoft, and I have asked Daniel Cai, the owner and head developer/architect at Kingswaysoft which API I should use. I don’t know if he has changed his recommendation, but last year, he still recommended, if my memory hasn’t failed me, to use the old SOAP API due to stability and functionality issues. I will let him, on their blog describe their thoughts on this, if they want to.
However, I think this is rather telling of how Microsoft act and will act regarding an older API, that it will be maintained and kept alive for many years.
That brings us to the interesting question if there will be a new API based on these new terms, I frankly do not know, but my deduction would say a definite yes.
It think the easiest way of seeing this is falsifying this and extrapolating it. In other words, what would happen if they didn’t create a new API and we looked at the platform as a whole in 5-7 years without knowing the history? It would look totally crazy. A platform with one set of terms in the UI and another set of terms in the API:s. It would make documentation really complex as there would be need for translations between these two concepts everywhere and the bar for getting developers into the platform would be higher than necessary.
Hence the only reasonable deduction is that they will make a new API with the new terms. It will probably be release in 6 months or so, but the current WebAPI will still continue to work for many years to come.
These are my personal thoughts and are not based on any information from Microsoft, despite the fact that I am an MVP. I urge you to make your own deductions and I think you will find that this seems reasonable. Please share your thoughts disagreements or otherwise in the comment section below.