Folks,

I share the same opinion that an announcements channel should be implemented in OpenSER project.
Since another mailing list could be just another subject for SPAM detectors (sometimes removals) or SPAM senders, perhaps another good approach would be the presence of an RSS feed aggregator on OpenSER website where all the important news alerts could come in (security fixes, new releases) and be read by whoever is interested via RSS. It could be a supplementary effort from a person editing these news but it would benefit from the advantage of a read only channel so a trusted entity for real news.

Cheers,
DanB