Armbian 26.2 delivers over 150 kernel updates and adds LTS kernel v6.18 support

Armbian 26.2 delivers over 150 improvements, mainly advancing kernel support for Rockchip and Allwinner devices. The release also introduces LTS kernel v6.18 images for new boards such as SpacemiT MusePi Pro, Radxa Rock 4D, Orangepi RV2, and Odroid M2. KDE Neon desktop builds return, and RISC-V XFCE desktop support is included. User tools like Armbian Imager also gain faster decompression and security updates.