Apple has released Safari 13 for macOS. It contains feature improvements as well as privacy, security and compatibility enhancements and is recommended for all users. According to Apple, the update:

° Includes an updated start page with Favorites, frequently visited, and most recently visited websites;

°  Provides a warning if a weak password is typed when signing in to a website and helps to upgrade it to a strong password;

° Adds the ability to enable Picture in Picture from the audio button in a tab;

° Enables jumping directly to an already-open tab from the search completion list when the website address is typed into the Smart Search field;

° Adds support for authentication using USB security keys on supported websites.

You can obtain the update via the Mac App Store in the Updates section.