The latest mainline 3 version of the Linux kernel is:         3.6-rc1   
The latest mainline 3 version of the Linux kernel is:         3.5       
The latest stable 3.4 version of the Linux kernel is:         3.4.7     
The latest stable 3.3 version of the Linux kernel is:         3.3.8      (EOL)
The latest stable 3.2 version of the Linux kernel is:         3.2.26    
The latest stable 3.0 version of the Linux kernel is:         3.0.39    
The latest stable 2.6.35 version of the Linux kernel is:      2.6.35.13 
The latest stable 2.6.34 version of the Linux kernel is:      2.6.34.12 
The latest stable 2.6.32 version of the Linux kernel is:      2.6.32.59 
The latest stable 2.6.27 version of the Linux kernel is:      2.6.27.62 
The latest linux-next version of the Linux kernel is:         next-20120807