As of September 2017, keychain is now being maintained by Funtoo Linux developer Ryan Harris (x48rph).
According to manpage of 2.8.5:
Keychain was created and is currently maintained by Daniel Robbins. If you need to report a bug or request an
enhancement, please post to the Funtoo Linux bug tracker http://bugs.funtoo.org. For more information about
keychain, please visit http://www.funtoo.org/Keychain.
According to Funtoo wiki:
According to manpage of 2.8.5: