Only try these files out if you like taking risks!

Nothing should be irreversible though. ;)

Configs

config-4.15.4
config-5.8.9

Headers

linux-headers-4.14.18
linux-headers-4.17.3

linux-headers-5.8.9
linux-headers-5.9.16

Images

linux-image-4.14.18
linux-image-4.17.3

linux-image-5.8.9
linux-image-5.9.16

Libraries

linux-libc-dev-4.14.18
linux-libc-dev-4.17.1

linux-libc-dev_5.8.9
linux-libc-dev-5.9.16

WiFi and Bluetooth drivers

(Obsolete for kernels >5 )
rtl8723bs_4.15.4
rtl8723bt_4.15.4