For OS upgrade, it requires new 510(k) submission. But yet again, it depends on the risk impact
- whether any new features are added into the OS impacting the performance, speed of programming, printer /network capabilities, etc...
accordingly, you need to take decision.
On the other hand, you can also refer to this EU NB MED 2.5.2/Rec.2 Guidance:
http://www.meddev.info/_documents/R2_5_2-2_rev7.pdf
Section 5.2 Changes to EC-approved medical devices design/type (including software)
(MDD Annexes II, 4.4 and III; IVDD Annexes VI-4.2 and V, respectively):
a) Reportable change:
- Changes to the medical device
included computer software (e.g. new functionalities, new algorithms for
computing) which will change the specifications and / or performances of the
device (e.g. changes of those materials which have to be biocompatible or
changes of main components like power source, Central Processing Unit
(CPU), defibrillator-capacitors etc.)
- new operating systems
are substantial changes.
Hope this helps to understand and analyze your case further!
Regards,
Sreenu