The latest stable version of the Linux kernel is: 6.18.6 The latest mainline version of the Linux kernel is: 6.19-rc6 The latest stable 6.18 version of the Linux kernel is: 6.18.6 The latest longterm 6.12 version of the Linux kernel is: 6.12.66 The latest longterm 6.6 version of the Linux kernel is: 6.6.121 The latest longterm 6.1 version of the Linux kernel is: 6.1.161 The latest longterm 5.15 version of the Linux kernel is: 5.15.198 The latest longterm 5.10 version of the Linux kernel is: 5.10.248 The latest linux-next version of the Linux kernel is: next-20260121