Testing headless .NET 8 -> .NET 9 update

[Frooxius]

Hello everyone!

I've got another test for you & heads up for upcoming update!

What is being tested

I've updated the headless client from .NET 8 to .NET 9 runtime which has released earlier this month.

This is mostly just a flag change and I don't really expect any breakage to actually happen. However since there's a number of tools in the community, I want to give everyone to give opportunity to prepare for the switch, particularly users hosting events and we might as well use that as opportunity to test this.

#3176

Current build number

2024.11.19.510

IMPORTANT: The build is compatible with current public build as well! You can host sessions with .NET 9 headless already and users will be able to join from the normal non-prelease build.

How to test

• On Steam, switch to the prerelease branch and make sure the build updates before you run it
• Make sure that Steam downloads the new build
• Make sure you have .NET 9 runtime installed
• Run the headless client

What to test

• Make sure your own tooling works with the version change.
• Host sessions, have people join as you'd normally do

What NOT to test & report

• Any pre-existing bugs. If you're unsure, switch back to main build and test it again. Report it only if it occurs on prerelease (otherwise just make a normal bug report)

If you find something that got broken

• Create a GitHub issue for a pre-release bug: https://github.com/Yellow-Dog-Man/Resonite-Issues/issues/new?assignees=shiftyscales&labels=prerelease&projects=&template=prerelease.yml

• Make sure to include the log

• Please include description of what happened. Be succinct, but exact.

• If you find a roadblocker that's not a bug, but something on your end that would disrupt events and you want us to delay this update, please let us know in this discussion with your reasoning

• Similarly if you for some reason cannot update the tooling in time and we'd disrupt your events, let us know and we can see if we can postpone the release to main

If you find that stuff works okay

Please report it too and include details on what you generally tested, so we know things are okay. You don't need to make a new issue for this - just a commend in this Discussion is fine.

This lets us know that a bunch of stuff was tested and get better confidence that stuff won't break with release.

Optional testing

This is not really needed, since it won't change the course of our action in any way, but if you'd like to gather some interesting data, I'd be curious to see how does the performance between .NET 8 headless and .NET 9 headless differ! If you gather some cool data, I'd love to see!

How long will testing go for?

We plan to make the switch to .NET 9 next Monday, which is on November 25th to give you some time to prepare.

UPDATE: The switch is now postponed to the Thursday next week, which is on November 28th.

UPDATE 2: The switch is now postpones to next Monday, which is on December 2nd.

We can re-evaluate if you hit roadblockers, but please give it a test if you can!

[bredo228]

Doing a quick test, the update to .NET 9 seems to be working fine.

[ModernBalloonie]

balls

[ModernBalloonie]

Seriously though we spawned many charactercontroller balls.

[bredo228]

[Frooxius]

Oh awesome! Did you notice any performance difference compared to .NET 8 headless?

[bredo228]

Not noticeably - didn't really have a point of reference to go off.

The headless frame rate remained pretty stable around 60 during most of the testing; unsurprisingly though it struggled with a couple thousand balls.

[jae1911]

Added a small migration guide to the wiki (even though this one is really easy): https://wiki.resonite.com/Headless_Server_Software/Migration_Net9

Headless-wise, no bugs to be reported, everything runs fine.

[jae1911]

Not really... It just says "On Steam, switch to the prerelease branch" That sounds like GUI only explanation. Not CLI

This also applies to the cli as switching branches is done by using -beta.

[gentlecolts]

My personal docker file is based on arch, and executes RUN pacman -Syu --noconfirm steam git lib32-sdl2 base-devel dotnet-runtime lib32-dbus for dependencies, if that helps anyone.

Doesn't seem like that's pinned to any particular dotnet version, here's to hoping things go smoothly

[troyBORG]

I'll mess with it more tonight after work.
One nice thing is mines an LXC container so I can snapshot try stuff if it breaks revert and try other stuff...

[troyBORG]

Well even though I was on Ubuntu 22.04. I ended up using Debian 12 repository to install dotnet9
https://learn.microsoft.com/en-us/dotnet/core/install/linux-debian

Once Ubuntu adds the dotnet9 I'll make it so I'm using the correct repo.
But it worked!

[troyBORG]

@Tulip mentioned that Ubuntu 24.04 so the backports had it.
https://launchpad.net/~dotnet/+archive/ubuntu/backports

[OrionMoonclaw]

I updated my headless (hosted on an arm64 device, had to recompile Resonite.dll)

Everything running good so far!

[Frooxius]

UPDATE: We are postponing the switch until next Monday on December 2nd!

[Alex-2Pi]

Any specific reason for moving the date again?
I ask because I don't see here or on Discord and information that would suggest it.
Especially since we are supposed to go here for more information.

I'm not saying it's a bad thing that it's moved and just curious if people have asked for a little more time and yet maybe you've discovered a problem that you still want to solve before the change.

[Frooxius]

The upcoming event is being hosted on .NET 8 and the stress test was ran with .NET 8, so we're keeping it to eliminate as many variables for things that could go wrong.

[Alex-2Pi]

Oh okey, sorry