erc-track-list-changed-hook

erc-track-list-changed-hook is a variable defined in `erc-track.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Hook that is run whenever the contents of
`erc-modified-channels-alist' changes.

This is useful for people that don't use the default mode-line
notification but instead use a separate mechanism to provide
notification of channel activity.

You can customize this variable.