NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.
ntp-4.2.8p15
was released on 23 June 2020. It addresses 1 medium-severity security issue in ntpd, and provides 13 non-security bugfixes over 4.2.8p13.
Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.
Release Notifications and Information
Notifications
Notifications about new versions of NTP are available in the following ways:
E-mail
Announcements are made through the following mailing-lists:
- Development Releases
- Stable Releases
Facebook
Our
RSS Feed is published on the RSS/Blog tab of the
Network Time Procol Facebook Page. You may subscribe to this app to add our RSS Feed to your News Feed.
Finger
Current version, release date and size are available from the archive.ntp.org finger daemon
-
finger ntp@archive.ntp.org
for the current Stable Release
-
finger rc@archive.ntp.org
for the current Stable Release Candidate
-
finger dev@archive.ntp.org
for the current Development Release
Freshmeat
Freshmeat members may subscribe to the
NTP Project on Freshmeat and receive e-mail release notifications through that site.
IRC
Abbreviated release announcements are made on the NTP Reference Implementation related channels on
irc.freenode.net
- Stable releases are announced on #ntp
- Development releases are announced on #ntp-dev
RSS
The current releases of NTP are listed on the
Current Versions of NTP RSS feed. You will need an
RSS Reader to view this feed; some contemporary web-browsers include an RSS Reader. Please visit the
DMOZ Feed Readers directory for a list of RSS Readers.
Add our releases feed to your web-site using the following JavaScript from www.feedbucket.com:
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Microblogging, IM, and SMS
Abbreviated announcements are posted on the
NTP TWitter page and
NTP Identi.ca page. Users of these micro-blogging services who add NTP as a
friend
will see these announcements on their own pages.
TWitter and
Identi.ca users may choose to receive these abbreviated release announcements through their micro-blogging service's IM gateway. Please check your micro-blogging service provider's web-site for the currently supported IM services and gateway status.
Twitter and Identi.ca users may choose to receive these abbreviated announcements on their mobile phones through their micro-blogging service's
SMS gateway. Please check your micro-blogging service provider's web-site for their SMS gateway status.

Your mobile phone provider may charge for this service.
Usenet
Announcements for Stable releases of NTP are posted on the
comp.protocols.time.ntp and
comp.os.linux.announce news-groups.
Links and Information
The following download links and release information about NTP are available:
Download Links
In addition to the services marked
Download in the Notifications table, download links are published at:
Browsable Release Information
Includable Release Information
Release Information that may be included in your web-page is published as:
Please contact
webmaster@ntp.org if you need our release information in another format.