Clear Used CSS after a Theme update about wp-rocket HOT 8 OPEN

Would be nice to clear the Used CSS after a plugin update also
slack: https://wp-media.slack.com/archives/C08N8J6VC/p1697530071237479

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I'd personally prefer it to be manually triggered, but maybe we can show a notice to suggest it if needed (like we do with cache clearing after plugin updates). Regenerating the CSS is too time-consuming of a process and should only be done when absolutely necessary, IMO.

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Extra feature question:
Does the "clear used CSS" get triggered on a automatic theme update?

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I'm running one theme with updates on multiple websites 40+ and I would like to clear the Used CSS after I push a necessary theme update. Now I have to login to every client and press the clear button...

If there is a hook to trigger it from within my theme its also a solution :)

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@DahmaniAdame What do you think about this? Automatically clearing Used CSS after each theme/plugin update seems to be a huge waste of resources.

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@piotrbak CSS is one of the most important parts of a theme. Theme updates should trigger a regenerate of cache & used CSS.

Tor example: The theme developer fixed html of a button and needed to alter the CSS to maintain the styling. Theme update rolls out, Cache is deleted but Used CSS is not. Then you have a button with new html but broken styling. Don't think that's what you want.

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@piotrbak the risk is that if the update has a front-end change. That would result in a broken element.

A notification about the change to the customer with them taking action if necessary will do.

Just like with do when adding/removing a plugin. We prompt a message to ask the customer clear cache if they know there is a change on the frontend. That will reduce the risk of something breaking.

@tatof

CSS is one of the most important parts of a theme.

It's not always the case.

But I agree that we need to provide a clearer way to communicate the risk and help the customer take action.

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@DahmaniAdame So, when the currently used theme is updated, we should display a notice similar to this one?

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