$site->multilang() in K3 =?

The CMS Questions
1

In Kirby 2 there is:

$site->multilang()

Checks if there are one or more languages configured in the config.php

    return (boolean)

What can I use with Kirby 3?

2

Like $kirby->languages() it is now also:

$kirby->multilang();
3

Thank you very much.

I missed it at https://getkirby.com/docs/reference/objects/kirby

4

Where can we find a complete list of those changes (old and new in ONE map)?
This would be fine for the migration of all code.

5

https://getkirby.com/docs/cookbook/migration/sites

6

Thank you for the link. I know this page.

But on that page I cannot find the word “multilang” or “multilang()” using firefox search…

I asked for ONE table or map with ALL these changes “old -> new” in one chapter.