Looks like it's in Ubuntu's build: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.3 LTS Release: 12.

Looks like it's in Ubuntu's build: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.3 LTS Release: 12.04 Codename: precise $ dpkg -l bash | tail -1 ii bash 4.2-2ubuntu2.5 GNU Bourne Again SHell $ foo() { echo foo; } $ export -f foo $ env | grep BASH_FUNC BASH_FUNC_foo()=() { echo foo Is this a correct test? Probably as of about 13:27 UTC yesterday, if I'm reading correctly here: https://bazaar.launchpad.net/~ubuntu-branches/ubuntu/precise/bash/precise-security/revision/64 https://bazaar.launchpad.net/~ubuntu-branches/ubuntu/precise...