Version skew; What happens after 12 hours?

Help
1

Our team is testing Vercel version skew with Sveltekit.

In our test project, we have a form you can submit.

Most things seem to work, but something unclear to me is what exactly is supposed to happen when you submit a form from an old version, after 12 hours.

At the moment, the old version seems to be alive despite being older than 12 hours. I hope you can help clarify what the intended behavior is here, thanks.

1 Like
2

Can you share us more information about what behavior you are seeing? The deployment should indeed remain alive and it shouldn’t just be blocked to remain accessible. Do you have a screencast / logs which we can refer?

Also note that If you are using SvelteKit, you will need to install @sveltejs/adapter-vercel version 5.2.0 or newer in order to enable Skew Protection.

2 Likes
3

Hi @swarnava

I have now updated the project to the newest version of the adapter-vercel, and enabled version skew.

I have recorded what happened when I submitted a form, from an expired deployment. You can view the results here:

So I guess the conclusion is that when a deployment is expired, it will route requests to the current deployment.

1 Like
4

Hi there,

Thank you for sharing the detailed video. I checked with team and this is currently intended behavior.

1 Like
5

This topic was automatically closed 24 hours after the last reply. New replies are no longer allowed.