Should I Always Upgrade to the Latest Firmware Version?
When in doubt, yes, you should update to the latest firmware version.
Occasionally we might release a firmware version that has no functional changes for divers. V72 for Perdix, Petrel and NERD 2 is an example of such a release. Upgrading from V71 to V72 will not have any negative effects on your dive computers. However, from the diver’s point of view nothing will change when moving from V71 to V72. There will be no benefit for a diver to upgrade from V71 to V72. Therefore it is not necessary to do so.
Why does Shearwater do this?
The reasons may vary from case to case, but they will probably be related to changes in production processes. We will update release notes accordingly.
Thank you for your understanding