This version introduces a new thesaurus feature with support for more than 20 languages. To look up words, use the "Tools | Thesaurus..." command of the main menu, or press Shift+F7, or right-click in your document and choose the "Thesaurus..." command from the menu. This will bring up a new "Thesaurus" dialog:

To enable the thesaurus tool for your language in Atlantis, download and install the corresponding spellcheck, hyphenation & thesaurus add-on. Or just choose the "Tools | Thesaurus..." command of the main menu, and Atlantis would suggest to download and install the corresponding add-on automatically.

See more release notes.