Linux stable version kernel maintainer Greg Kroah-Hartman unexpectedly announced the release of a new version of the Linux kernel 3.18 LTS, which was originally scheduled to end support in January this year. Kroah-Hartman released 3.18.48, which fixed a bug in 3.18.47 and 3.18.27. He hopes that this version will be the last version of the 3.18 branch, and urges users who use 3.18 LTS to upgrade to newer LTS versions such as 4.4 or 4.9. The LTS version usually provides support for about two years. 3.18 was released in December 2014. 3.18 is used by vendors such as Google in Android or Chrome OS. Kroah-Hartman recommends that users refuse to buy vendors that still use 3.18 LTS device of.