Apple has announced that owners of some older iPhones and iPads should update their devices, this is to fix the GPS bug that we heard about previously.
If you own the iPhone 5 or 4th generation iPad then you need to update your device to iOS 10.3.4, if you own the iPhone 4S, 1st gen iPad Mini, iPad 2 or iPad 3 then you need to update to iOS 9.3.6.
Starting just before 12:00 a.m. UTC on November 3, 2019,* some iPhone and iPad models introduced in 2012 and earlier will require an iOS update to maintain accurate GPS location and keep the correct date and time. This is due to the GPS time rollover issue that began affecting GPS-enabled products from other manufacturers on April 6, 2019. Affected Apple devices are not impacted until just before 12:00 a.m. UTC on November 3, 2019.
You can find out more information about the updates over at Apple at the link below, it is recommended you update before the 3rd of November.