Turn titles into URL slugs in bulk, with accents folded to their Latin letters rather than dropped, and an optional length limit that cuts on a word.
The result appears hereThey are folded, not dropped: café becomes cafe and Straße becomes strasse. Dropping them is what turns a readable title into an unreadable slug.
Because a slug ending in a half word looks broken and reads worse in a search result. The limit cuts at the last separator before it instead.
Yes, in practice. Paths are case sensitive on most servers, so a mixed-case slug quietly becomes two URLs for one page. The switch is there for the systems that already made the other choice.
Keep the old slug working with a 301 to the new one, or the links and the ranking that pointed at it are lost. Sites that rename often put an id in the path as well, which makes the slug decorative and a rename harmless.