How to use a UI Library developed by svelte 4 in Svelte 5? such as flowbite svelte.

[sopaco]

How to use a UI Library developed by svelte 4 in Svelte 5? such as flowbite svelte.

[PatrickG]

Svelte 5 is backwards compatible.

[brunnerh]

For the most part, once all the bugs are fixed.
There are some breaking changes but in most cases existing components should just work.

[DiegoBM]

Can runes mode be mixed with the old $ mode?

[dominikg]

Can runes mode be mixed with the old $ mode?

In the same file, no.
In different files of the same project, yes.