Don't feel bad. I didn't know either and I'm really behind:
immaculata 07-16:12 ~> bash --version
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
Copyright © 2016 Free Software Foundation
Also, where was I for all of 2014? https://en.wikipedia.org/wiki/Shellshock_(software_bug)
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