Notes:

The RELEASES is the latest stable version. The pre-release is the latest development version.
Use u-boot recovery mode selection: ayufan-rock64/linux-u-boot@ea6efec
To enable upgrading to pre-releases edit nano /etc/apt/sources.list.d/ayufan-rock64.list,
If you look for kernels, u-boots, or packages (.deb), consider reading the: https://github.com/ayufan-rock64/linux-build#components,
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OpenMediaVault:

Bionic / Container Linux:

It has Docker Community Edition / Docker Compose / Kubernetes-admin installed for easy Containers use,

Credentials:

All variants except OMV: rock64/rock64
OMV: admin/openmediavault (for Web), root/openmediavault (for Console). To enable SSH for OMV go to Web > SSH > Permit Root Login > Save > Apply

Upgrade:

sudo apt-get update -y
sudo apt-get install linux-rock64 -y
sudo apt-get install linux-rockpro64 -y

0.7.x

0.7.5: Various stability fixes for kernel and u-boot,
0.7.5: Added memtest to kernels and extlinux,
0.7.5: Show early boot log when booting kernels,
0.7.4: Fix resize_rootfs.sh script to respect boot flags (fixes second boot problem introduced by 0.7.0),
0.7.4: Add rock(pro)64_erase_spi_flash.sh,
0.7.4: Fix cursor on desktop for rockpro64,
0.7.3: Fix generation of extlinux.conf (linux booting),
0.7.2: Pin packages,
0.7.2: Improve performance of build process,
0.7.1: Use GitLab CI for releasing all images,
0.7.0: Introduces heavy refactor splitting all components into separate repos, and separate independent releases (u-boot, kernel, kernel-mainline, compatibility package),
0.7.0: Dry run everything,

0.6.x