Linux 5.0.21 is now available, the latest maintenance release of the 5.0 series. Linus Torvalds released Linux 5.0 just two months ago today and has since received, with today's version, a total of 21 updates to fix bugs. Greg Kroah-Hartman, who has been in charge of its maintenance, has released a minor update practically every three days, something that Ubuntu users have not received basically because Canonical is the one in charge of correcting the kernel bugs so that it works best possible on their operating systems.
What X-Buntu users have received today is a new kernel update that has arrived with the numbering 5.0.0-16-generic # 17 and that is already available from the different software centers or updating with the sudo command apt update && sudo apt upgrade. Kroah-Hartman recommends that all users go to Linux 5.1.x, since the one released today is the latest version of the 5.0 series, that is, there will be no more updates.
Kroah-Hartman recommends upgrading to Linux 5.1
Personally, I think we can trust Canonical and it is not urgent for Ubuntu users that we update ourselves to the latest version of the Linux kernel. Whenever there have been any issues, the company that Mark Shuttlewoth runs has responded within hours. If, despite everything, you are interested in updating, you can do it in three different ways: by downloading the tarball, downloading and installing the base packages for Ubuntu or, what I recommend, use the tool Greatness.
Right now, the latest stable version is 5.1.7, while the latest version in testing phase is the 5.2-rc3. Linux 5.1 It includes more notable new features than v5.2, starting with being capable of using persistent memory such as RAM or activating support for the Live Patch that was announced for Disco Dingo. On the other hand, v5.2 will come with other new features, such as a improved support for Logitech wireless hardware.
What version are you going to update to? Or, like me, do you trust Canonical?