ISC DHCP 4.2.0a2 is now available!

David W. Hankins dhankins at
Mon Feb 22 22:07:32 UTC 2010

ISC DHCP 4.2.0a2 is now available for download.

This is the SECOND ALPHA of ISC DHCP 4.2.0, a feature release which
contains many new features, as well as a number of bug fixes.

There is a known flaw with failover recovery from 'potential conflict.'
In the event the failover servers disconnect and reconnect during the
recovery transition, the reconnecting servers will reach a stalemate
and fail to transition to normalcy.  This will be addressed in upcoming
releases through beta.

A list of the changes in this release has been appended to the end
of this message.  For a complete list of changes from any previous
release, please consult the RELNOTES file within the source
distribution, or on our website:

This release, and its OpenPGP-signatures are available now from:

ISC's Release Signing Key can be obtained at:

			Changes since 4.2.0a1

- When using 'ignore client-updates;', the FQDN returned to the client
  is no longer truncated to one octet.

- Cleaned up an unused hardware address variable in nak_lease().

- Manpage entries for the ia-pd and ia-prefix options were updated to
  reflect support for prefix delegation.

- Cleaned up some compiler warnings

- An optimization described in the failover protocol draft is now included,
  which permits a DHCP server operating in communications-interrupted state
  to 'rewind' a lease to the state most recently transmitted to its peer,
  greatly increasing a server's endurance in communications-interrupted.
  This is supported using a new 'rewind state' record on the dhcpd.leases
  entry for each lease.

- Fix the trace code which was broken by the changes to the DDNS code.

David W. Hankins	"If you don't do it right the first time,
Software Engineer		     you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins
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