[yuhong]

> which AFAIK depending on how much you pay them they support for 13 years

10 years actually. This is a common misconception from those who do not read the lifecycle page carefully.

[claudex]

It's 13 years with the Extended Life Phase and the Extended Life Cycle Support subscription which provide security fixes https://access.redhat.com/site/support/policy/updates/errata...

[yuhong]

Except ELS applies only to RHEL3/4 (which gets only 7 years of support otherwise) and also covers a limited amount of packages.