Hi all how i can update to the new ver 18.9.2 without loss data

hi all how i can update to the new ver 18.9.2 without loss data

i also want to know

Loss of data never happens when updating, but to be on the safe side make a backup copy of your Manager data (see Manager Cloud). Then just install the new version.

yes thank you
Done

But what new in this ver 18.9

That depends on what your old version was. Release notes are here: https://www.manager.io/desktop/releases/. But most releases do not include features noticeable by users, just internal improvements. Only new features or bug fixes are announced on that web page.