Hi! If you're using Bubble Card pop-ups on your dashboard, I highly recommend not updating to Home Assistant 2026.4. There’s an issue that breaks them, and I’ll release a new version tomorrow! If you’ve already updated (or still want to), I’ve added a link to a temporary fix below.

Here is the fix:

https://github.com/Clooos/Bubble-Card/issues/2301#issuecomment-4150127302

Sorry for the delay! I expected this Home Assistant release to come a bit later, like usual 😅

Edit: This release will be more than just a bug fix. I’ve spent a lot of time on various (major) optimizations and fixing other issues, which is why it took longer. Expect a significant performance boost for pop-ups and complex dashboards with many modules or custom styles/templates, especially on low-end devices!