Debugger / Tester Filter

Hello, thank you for the improvements and the various options on the filter over all these years.

But I have a request on behalf of all filter creators.
Would it be possible to have a filter tester/debugger before the league starts?

After the patch notes and even just before the league, we cannot update the filter and see any errors because the site doesn't account for patch changes (new item base, renames, etc.).
Exemple on my filter today : Line 1472: Unknown rule type Imbued Go to Line

It's always at the league's launch that the filter tells us it doesn't load because we've forgotten "".

Would it be possible to have the updated filter on the site a few hours before the league's start?

Thank you for your response and for your work.