SignalR dotnet client version doubts

[devshank3]

Hello People

I'm working on a project with an interesting version mismatch scenario and need some clarity on potential compatibility issues:

Server Setup:

• .NET 8 WebAPI project
• Using both WebAPI controllers for data persistance and SignalR hub for notifications
• SignalR is using the built-in version that comes with .NET 8

Client Setup:

• .NET 4.8 WPF/ Console applications
• Using Microsoft.AspNetCore.SignalR.Client version 1.1.0/1.0.0 (yes, the very first .NET Core SignalR client version)
• Due to certain constraints, we're stuck with this older client version for now

Current Status:

• Main functionalities are working fare working fine between .NET 8 server and the Microsoft.AspNetCore.SignalR.Client v1.1.0 client
• Initially assumed client version needed to match server major version, but that doesn't seem to be the case, things work fine

Questions:

1. What potential compatibility issues should I be concerned about using such an old client version with a modern server?
2. Where can I find comprehensive release notes for SignalR .NET client versions? Would like to understand what we're missing out on.
3. Has anyone else successfully maintained this kind of version gap in production? Any gotchas to watch out for?

Any insights or experiences would be greatly appreciated!

[devshank3]

@BrennanConroy
Can you help me on my situation mentioned above please ?

[BrennanConroy]

https://learn.microsoft.com/aspnet/core/signalr/client-features?view=aspnetcore-9.0#versioning-support-and-compatibility

Any supported client can safely connect to any supported server, and any compatibility issues would be considered bugs to be fixed.

We try to keep compatibility between all versions by using the negotiate and handshake parts of the connection startup process.

Release notes are released every year in https://devblogs.microsoft.com/dotnet/category/aspnetcore/
There is also a table listing features and which versions the feature was added for which clients:
https://learn.microsoft.com/aspnet/core/signalr/client-features?view=aspnetcore-9.0#feature-distribution

[devshank3]

Thanks a lot