Last night, Apple made available to developers and registered users of its firmware test program iOS 10.3 beta 4 (build number: 14E5260b).
In this update, Apple has only fixed a few bugs reported by users who installed the previous pre-release. There is therefore no significant novelty to put in your mouth. As a reminder, iOS 10.3 beta 3 has arrived with a list of non-functional applications on the future iOS 11 firmware.
For the moment, the Cupertino company has not communicated a date concerning the release of the final version of iOS 10.3 for the general public, but it should intervene during the month of March. As a reminder, Apple released iOS 9.3 on March 21, 2016.
If you installed beta 3 on your iPhone, iPad or iPod Touch, you can very easily go to the 4th pre-release by going to Settings> General> Software update (Apple developer or tester account required).