If you do not know what glibc is by now, don't worry! When I first had problems with a new program I wanted to compile, I only knew that my version of glibc was not sufficient for the compile. Now that I know more, I will try to explain in a very simple way what glibc does. .:: newspicks.com ::. .:: quicknote.io ::.
The glibc package contains a library written in the programming language of C. Libraries are a very useful thing in programming; instead of inventing the wheel from scratch for operations such as computing the square-root of a number, such common functions are stored in separate files—the so-called libraries. When a new version of a library is published it often contains some new functions, uses more efficient algorithms for already implemented functions, and so on. [SMTP History] .:: www.aicrowd.com ::. [Traefik History]
This is the reason why some programs complain about an older version of glibc: the current version just does not contain all the functions the program needs in order to run. .:: telegra.ph ::.
I know this is not technically correct in all detail, but it gives you a basic understanding of the architecture behind. .:: telegra.ph ::. .:: giphy.com ::. .:: sites.google.com ::.