Are the AF SDK samples really using .NET 4.8 ??

Yes, the AF SDK is .NET Framework based and can only run on Windows. A .NET Core version is being worked on, but there's no release date set.

Yes, presently AF SDK is only supported under .NET Framework. Sometime later this year, we are expecting the first ever version of AF SDK for .NET 8. Understand that when AF SDK was being created in the early 2000's that .NET Framework was all there was. There was no .NET Standard or .NET Core.

Are you looking to just do the development on a Mac? Or are you looking to deploy to unix as well?

You could containerize it currently, but it would have to be a Windows based container, which can only run on Windows OS. When the .NET Core SDK is released, then it would be possible to also use Linux (or Mac for development).

Not many details to give.

Here on PI Square, there is this post by me that tries to keep up:

https://pisquare.osisoft.com/s/question/0D58W00007BtN0ASAV/microsoft-releases-wcf-for-net-core-5-6-does-af-sdk-now-have-a-path-foward-to-net-core

And there is the Feedback Portal with the pertinent question:

https://pisystem.feedback.aveva.com/ideas/PIDEVTECH-I-134

Current update status is: "We are targeting a release date in the second half of 2024, provided there are no interruptions"

One good bit of news is that they are intending to replace WCF with gRPC for better performance. Funny thing is WCF was the hold-up of why they never ported to .NET Core in the first place.

It depends on what you're doing. If you're building a custom application and that's all you need the container for, then you only need the AF SDK DLL. You wouldn't actually need the AF Client installed in that scenario.

Event history depends on the definition. In some PI circles, an event is a recorded piece of data, that is an AFValue with a Timestamp, Value, and IsGood. And event history could mean a list of recorded values.

Your app does not have to be AF SDK. There is cross-platform, language agnostic PI Web API that does not need .NET Framework or .NET. You can use Java, Python, etc., on Linux or Mac if you like.

There is also RTQP for SQL access.

Correct, for retrieving data that's the case. But the AF SDK is also the most performant with the most features. So, it depends on need and use-case. I'm currently building a NodeJS application that uses the AF SDK rather than the PI Web API due to performance issues.

oh.. there's a framework and a core? :). I'm totally out of the loop on .NET so thanks for bearing with me.

I do see a .NET Framework 4.8 docker (https://hub.docker.com/_/microsoft-dotnet-framework-sdk/) so I might be able to move forward with that. I guess I was looking at the .NET core releases which doesn't even have a version 4 (goes from 3 to 5).

Please forgive my lack of .NET and AF SDK knowledge.

Hmm.. an AF SDK for .NET 8?? that would be great. Where can I find more info about the release date of this and possibly get early beta builds?

Thanks.