Sony Mobile has released a small update for the Xperia Z5 range, Xperia Z3+ and Xperia Z4 tablet, which moves the build number from 32.3.A.0.376 to 32.3.A.0.378. It is too early to say what has changed, but it is likely that Sony has taken the opportunity to further quash some Nougat bugs. If you have updated, please let us know any differences that you have noticed in the comments below. We will also shortly include some FTF firmware links.
Thanks Haziq and Vlad!