After you have read this guide, if you still have questions about ERC, or if you have bugs to report, there are several places you can go.
To upgrade, run M-x list-packages RET. In the
package-menu-mode) buffer, click the
‘erc’ package link for the desired version. If unsure, or if the
version column is too narrow to tell, try the bottom-most candidate.
In the resulting
help-mode buffer, confirm the version and
click ‘Install’. Make sure to restart Emacs before reconnecting
to IRC, and don’t forget that you can roll back to the previous
version by running M-x package-delete RET.
See Packages in the Emacs manual for more information.
In the rare instance you need an emergency fix or have volunteered to
test an edge feature between ERC releases, you can try adding
‘("devel" . "https://elpa.gnu.org/devel/")’ to
package-archives prior to performing the steps above. For
this, you’ll want to instead select a “snapshot” version from the
menu. Please be aware that when going this route, the latest changes
may not yet be available and you run the risk of incurring other bugs
and encountering unstable features.