Oticon Firmware Updater lets you update the hearing aids to the newest firmware version released in 2019.1.”and'OpenSound Booster - New OpenSound Navigator profileThe Oticon ON App has a new booster feature for increased on-demand listening assistance. There are two comments in the “What’s New” document that lead me to believe there may be a pending firmware update to the OPN series.“Older versions of Oticon Opn hearing aids need to be updated to support the new fitting features.