This file is no longer used. Monotone developers' convention is now to write ChangeLog-format log messages in the commit logs only. Many people were duplicating the same text in both places, and this caused unnecessary merge conflicts for ordering of the serialised ChangeLog file for the non-serialised ancestry graph. "mtn log" will produce the same information, sorted in proper ancestry order, even with the presence of propagates and putbacks of long-running development branches. A copy of this output will overwrite this file for release tarballs. When writing commit log messages in ChangeLog format, you can omit the date and name header, because these will be carried in the author and date certs. Just use the body part, like so: * foo.cc (function): change this to foo more efficiently * cmd_bar.cc: use the more efficient foo * NEWS: tell the users that the bar command is now so much faster.