I am pushing new kernels after a while but am posting first as there are a lot of changes and want members to read first before upgrading:
linux 5.10.16 is now in the linux-rpi4 package and I will be pushing this package to the testing and unstable branch to get as much testing done on it before the new upcoming images are released.
linux 5.11.0 is now in the linux-rpi4-mainline package and will be pushed to the unstable branch.
The 2 new raspberrypi-bootloader packages I will be pushing to the testing and unstable branch.
As requested to stop custom config.txt and cmdline.txt files in /boot from being over written on every upgrade I have removed them from the kernel initial install phase. The old kernel will remove them before these new kernels get installed but I have made provisions in the .install files to look for these files in their respective .pacsave files in /boot and restore them back otherwise it will create the 2 files with their default values.
So if you have custom config.txt and cmdline.txt and want to keep them do this one time procedure below before upgrading to get past this transition period. If you have not changed these files then do nothing and do a kernel upgrade as normal.
sudo cp /boot/cmdline.txt /boot/cmdline.txt.pacsave
sudo cp /boot/config.txt /boot/config.txt.pacsave
New upgraded files:
linux-rpi4 5.10.16-1
linux-rpi4-headers 5.10.16-1
linux-rpi4-mainline 5.11.0-1
linux-rpi4-mainline headers-5.11.0-1
raspberrypi-bootloader 20210216-1
raspberrypi-bootloader-x 20210216-1