Jannon was designed 1997–2010 and updated in 2014, comprising Jannon Antiqua (for display sizes), Jannon 10 (for smaller text sizes), the intermediate Jannon Text, and Jannon Ornaments. Supports Latin, Greek, and Cyrillic.

As of 2025, Storm offers two Jannon collections: Jannon Antiqua which covers the same subfamilies as the 20214 version of Jannon with additional weights; and Jannon Neo (2024), which is a more restrained version of Jannon in 32 styles.

A previous version included Jannon Text Moderne, with thickened hairlines and a slightly smaller x-height. These branches seem to have been merged into Jannon 10.