The wait between Linux 2.x and 3.x was a long one，" Torvalds said during the LinuxCon conference in San Diego [Wednesday]. "We'll do 4.0 in three years maybe when the sub numbers have grown in the 20's and our feeble brains can't handle it." ， that will only be a matter of three years， but the wait to Linux 4? Well。

according to Linus Torvalds. '"It's just mentally much easier for people to remember the small number，。