How can I upgrade my genealogy file to a new version of Heredis?

Heredis can convert files from older versions of Heredis.

There’s no need to use a GEDCOM format! In fact, data in GEDCOM format depends on the settings made during GEDCOM export, and does not contain the media directly included (Heredis exports in GEDCOM 5.5.1). The GEDCOM format is designed to exchange data with other software programs. It is useful when transmitting to earlier versions of Heredis, but not when upgrading to a more recent version.

Simplify your life, simply open your usual genealogy file in the new version.

See these articles for more details: What is a GEDCOM? and Open an existing Heredis file.