Here’s a small but useful improvement in Ulysses 17. You may be aware that there’s a feature to automatically continue lists; you can activate it via “Edit” › “Replacements” › “Smart Lists”.
Now, with the latest version, the lists have become even a little smarter. If you update a list – you add a new item, remove one, or change its hierarchical level – the ordinal numbers of the following items will be updated automatically. Yay!