Linus Torvalds announced the Linux Kernel 5.14 after few weeks of development and is available for general usage with new features, improvements, and better hardware support.
As per Linus Torvalds for Kernel 5.14
This tutorial will be helpful for beginners to install Linux kernel 5.14 in Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 18.04 LTS, and LinuxMint 20.1.
How to Install Linux Kernel 5.14 in Ubuntu / Linux Mint?
Step 1: Update the system before proceeding to install kernel 5.14
Step 2: Download the mainline kernel packages for Kernel 5.13 from the Ubuntu kernel Mainline page or use the below commands.
For 64 bit systems
Step 3: Install the Deb files
Step 4:Reboot and Validate
Once the installation succeeded, reboot the system and verify the newly installed kernel by using the below commands.