VP2 Temperature offset not applied

It has come to light that the sensor I replaced late October 2019 requires a -0.5C offset due to different design - this is significant and if corrected there would have been more air frosts recorded for example.
Here's the info:
https://www.manula.com/manuals/pws/davis-kb/1/en/topic/temperature-humidity-general

The previous one was installed about 2014 and was reading correctly.
the newer design is reckoned to be more accurate.
Luckily that's only two months with *wrong* readings and there's no easy way to correct that so will let it go.