E_Blue

@JonathanReez My boss has two servers with CentOS 6.3 running from 2011 or so, with no issues. We are afraid to update it, the servers has no backup server, they work by them self. The bigger one took like 10 minutes to boot.

@Neil I don't use Microsoft Office, I use Open Office since a decade ago or more. There's only 2 apps that I Linux doesn't support, and old Orcad version and Visual NET. For Orcad I already have a VM in VirtualBox because is 16bit App and don't run on Windows x64 OS. For Net I think I'm going to install it in the same VM.

@user535733 I use my PC to work and, as I stated before to another user, I need a lot of time to set the OS and apps as I need, so, I'm not going to get in something that I don't understand how it works. I don't want to get in and then realize that is not what I think, that's why I'm here, to solve doubts.

@user68186 I'm talking about the first 2, and I don't know what's difference between them. Getting a new OS is not an update for me, is just a new OS.

@mchid When the LTS last support day comes I must install and start from scratch or there's any way to keep my configuration and programs? When I change the OS I need like 3 months to set everything has I need. and after some time I forgot how I did some things and need to make all the research again. Is annoying frustrating and a waste of time.

@cocomac I understand the security reason but I like to make my research BEFORE install something. Sometimes updates has regressions and/or make a bigger issue than the one is trying to solve. W10 is specialist in this. They release an update and then an update to solve the issues that the previous update created. I have a Retail Windows but I feel like I'm in the Beta tester channel.