The current stable version is Release 16, please also refer to the Download.
Version 17~rc3 is available for testing the upcoming release.
Caution:
ngIRCd-versions previous to 0.10.4 contain a bug which can be used
(also remotely) to crash the daemon. All installations should be
updated to version 0.10.4 or newer!
The SSL/TLS functions prior to 14.1 have a bug which can crash the
daemon as well. If using SSL/TLS you should update to at least
ngIRCd 14.1 (or newer)!
The NEWS-file and the ChangeLog are available online and in the archives.