Hello !
I received an mail which says that Harmony passes of a new version (14 > 15). Having bought him in the middle of year, I would thus like to know how to update him.
Thank you for your future answers 
If you have an active support contract you will automatically be
able to upgrade when Harmony 15 is released.
Contact licenser@toonboom.com to upgrade your license when
the time comes.
All right I see, I am going do that. Thank you !
How will I know if I have an active support contract?
Check your account’s “My Download” section and the
"Manage My Subscription section.