I’ve got an FP3 with LOS 17.1 + microG and I’d like to update it to 18.1 + microG. The first install was something of a struggle so I’m hoping for a bit of help. The little documentation I’ve found on is :
Upgrade from LineageOS 15.1 to LineageOS 16.0
To upgrade from LineageOS for microG 15.1 to LineageOS for microG 16.0 it is not necessary to wipe your data, just upgrade your TWRP bootloader and flash manually the latest LineageOS for microG 16.0 zip.
To upgrade from LineageOS 15.1 to LineageOS for microG 16.0, first upgrade your TWRP bootloader, then upgrade to LineageOS 16.0 and finally follow the Migration from LineageOS instructions.
To upgrade from an unofficial LineageOS build to LineageOS for microG 16.0, a factory reset is required, otherwise you can create your own migration zip, and follow the Migration from LineageOS instructions.
The official LOS instruction is a bit different Upgrade LineageOS on FP3 | LineageOS Wiki. Could someone please share a step by step guide how to go about this?