$ZSH_PATCHLEVEL
–
Basename of the shell command
$ZSH_PATCHLEVEL describes the patch level of the Zsh repository used to compile the binary
and is most useful for developers working on Zsh.
Most users will prefer $ZSH_VERSION.
Links
BashSupport Pro is a Zsh IDE with support for $ZSH_PATCHLEVEL – try it now!