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[20151009] NetBSD 7.0 is released
The NetBSD Project is pleased to announce NetBSD 7.0, the fifteenth major release of the NetBSD operating system. The last release is quite some time ago, but given a philosophy of "it is ready when it is ready" and the amount of work that went into it, this is a very good reason to celebrate!

See the official release announcement for a long list of hilights and harder to notice changes.

Also, there is an article on What to expect in NetBSD 7 which also describes many of the new features, changes and bugfixes in NetBSD 7.

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[20130520] NetBSD 6.1 and 6.0.2 released
Following NetBSD's release scheme, two new releases are available now. NetBSD 6.1 is the next release from the netbsd-6 release, and it contains security fixes, bug fixes and some new feature. NetBSD 6.0.2 is the second stability update for NetBSD 6.0, and it also contains bugfixes and security fixes, but no new features. See the release map graph on the NetBSD website for a visual representation of the relationship between releases. Major news in 6.1 include:
  • Security: prevent kernel panics via userland requests from kqueue, a random number generator update to prevent weak cryptographic keys and a vulnerability in grep.
  • Networking: many updates to NetBSD's new packet filter npf, and improved SMP operations.
  • Embedded: Raspberry Pi now has working USB and ethernet, support for the watchdog timer in some Marvell SoCs, fixes to the Kirkwood IRQ code
  • Platforms: device driver for Hydra and ASDG Zorro2 bus network cards on Amiga, x68k's bootloader can now boot from CD and network, and dtrace support on amd64.
  • Drivers: add LSI Thunderbolt (SAS2208) controllers, Apple's Thunderbolt to Gigabit Ethernet adapter, and improve stability with multiple concurrent file system snapshots.
... plus numerous bugfixes. For more details see the release notes of NetBSD 6.1 and NetBSD 6.0.2. NetBSD is a volunteer project ran by a non-profit organization and with no commercial backing. As such, your donations are very important to the project, and can fund developing in various areas, including:
  • Improving network stack concurrency and performance.
  • Development of modern file systems and improvement of existing ones.
  • Features which are useful in embedded environments, such as high resolution timers and execute in place (XIP) support.
  • Automatic testing and quality assurance.
For more information about donating, visit The NetBSD Foundation is a 501(c)(3) organization in the US, and donations may be tax deductible.

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[20120211] NetBSD 5.1.2 released
Soren Jacobsen from NetBSD's release engineering team announced on the NetBSD blog: ``On behalf of the NetBSD developers, I am pleased to announce that NetBSD 5.1.2 is now available for download. NetBSD 5.1.2 is the second critical/security update of the NetBSD 5.1 release branch. It represents a selected subset of fixes deemed critical for security or stability reasons. All users are encouraged to upgrade. For full details, please see the 5.1.2 release notes. To download 5.1.2, see''

Among the changes are:

  • Fixes from ten Security Advisories: openssl, bind, kernel memory exhaustion, IPCOMP, dhclient, LZW, openpan
  • More security fixes for 3rd party Products: libtelnet, openssl, postfix, dhcpcd, xrdb, glob(3), openssh
  • Improvements of logging in wapbl(4)
  • Improved handling of ECN, NFS
  • Various minor updates and bugfixes
Note that the NetBSD x.x.x releases only contain security and critical bug fixes over the last full release (5.0). The number is kept down to improve stability. More updates and changes are available on the NetBSD x.x releases and their related branches, e.g. netbsd-5. (see also)

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[20100620] NetBSD 5.1_RC3 binaries available for download
NetBSD release-engineer Soren Jacobsen announces: ``The third (and hopefully final) release candidate of NetBSD 5.1 is now available for download at:

Those of you who prefer to build from source can continue to follow the netbsd-5 branch, but the netbsd-5-1-RC3 tag is available as well.

See src/doc/CHANGES-5.1 for the list of changes from RC2 to RC3.

Please help us test this release candidate as much as possible. Remember, any feedback is good feedback. We'd love to hear from you, whether you've got a complaint or a compliment. That said, we hope your feedback is positive, as we would like this to be the final release candidate before 5.1. ''

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[20100528] NetBSD 5.1_RC2 binaries available for download
Soren Jacobsen writes on netbsd-announce: ``The second release candidate of NetBSD 5.1 is now available for download at:

Those of you who prefer to build from source can continue to follow the netbsd-5 branch, but the netbsd-5-1-RC2 tag is available as well.

See src/doc/CHANGES-5.1 for the list of changes from RC1 to RC2.

Please help us test this and any upcoming release candidates as much as possible. Remember, any feedback is good feedback. We'd love to hear from you, whether you've got a complaint or a compliment. ''

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[20090430] NetBSD 5.0: Overview and Benchmarks
Andrew Doran has made an overview of NetBSD 5.0, available as HTML and PDF, which includes a general description of what NetBSD is, what's new in 5.0 and what is important for users of workstations, servers and embedded apps as well as for developers and hobbyists. Besires the lists of features, the most interesting part is a number of benchmarks that show that NetBSD can compare well to FreeBSD and Linux (by usually beating them 8-). A list of possible features for NetBSD 6.0 concludes.

Some details on the benchmarks:

  • hackbench IRC server simulation:

  • sysbench: MySQL OLTP simluation:

  • Compile benchmark:

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[20090430] NetBSD 5.0 release announcement
NetBSD 5.0 is released: ``NetBSD 5.0 features greatly improved performance and scalability on modern multiprocessor (SMP) and multi-core systems. Multi-threaded applications can now efficiently make use of more than one CPU or core, and system performance is much better under I/O and network load.

In addition to scalability and performance improvements, a significant number of major features have been added. Some highlights are: a preview of metadata journaling for FFS file systems (known as WAPBL), the jemalloc memory allocator, X.Org instead of XFree86 on a number of ports, the Power Management Framework, ACPI suspend/resume support on many laptops, write support for UDF file systems, the Automated Testing Framework, the Runnable Userspace Meta Program framework, Xen 3.3 support for both i386 and amd64, POSIX message queues and asynchronous I/O, and many new hardware device drivers. For all the details, see the full release notes. ''

Citing from the release announcement, ``ISO images can be downloaded using BitTorrent, and we encourage users who wish to install via ISO images to take advantage of this, as the images are very well seeded at

Complete source and binaries for NetBSD 5.0 are available for download at many sites around the world. A list of download sites providing FTP, AnonCVS, and other services may be found at:

We are very grateful to all of those who donated during the 2007 fund drive, which brought us many of the great advances found in 5.0. For more information on how you can help NetBSD, see'' See the NetBSD 5.0 release announcement for more details.

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[20090416] NetBSD 5.0 Release Candidate 4 available
Soren Jacobsen writes: ``Today, we have two things to be happy about. First, the fourth release candidate of NetBSD 5.0 is available for download. Second, this announcement, like RC3's, coincides with an important birthday: that of Billy West.

Below are some highlighted changes since RC3:

  • Added the RLIMIT_AS resource, which limits the total address space available to processes.
  • Improved NFS server stability
  • FFS improvements
  • A fix for a pf(4) DoS
  • re(4) now works with the RealTek 8111C, which is found on many current motherboards with Intel chipsets
As usual, src/doc/CHANGES-5.0 has the full details.

Binaries of 5.0_RC4 are available for download at

Those of you tracking by source can either continue following the netbsd-5 branch or use the netbsd-5-0-RC4 tag.

As always, we want your feedback. This time, we are especially interested in hearing from people who are using NFS.''

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[20090322] NetBSD 5.0_RC3 binaries available for download
Soren Jacobsen from the NetBSD release engineering team wrote on Sat, 21st of March 2009: ``Today, on the 16th birthday of NetBSD, I have the pleasure of announcing the availability of NetBSD 5.0_RC3. Below are some highlighted changes since RC2:

  • Considerable improvements to WAPBL.
  • Further X.Org refinements, including switching sgimips to X.Org.
  • Scheduler Activations support is now disabled by default in sysctl.conf.
  • ddb.onpanic is now set to 1 in the kernel by default, but 0 in sysctl.conf. This avoids trying to dump if a crash occurs during the install phase.
  • puffs is now enabled by default on amd64, i386, macppc, and sparc64.
  • SSP kernels should work again.
  • A handful of assorted stability improvements.
As always, see src/doc/CHANGES-5.0 for full details.

Binaries of 5.0_RC3 are available for download at

Those of you tracking by source can either continue following the netbsd-5 branch or use the netbsd-5-0-RC3 tag.

Thanks for all the help and feedback so far. Please keep it up! ''

Happy Birthday, NetBSD!

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[20090205] First Release Candidat for NetBSD 5.0 released
NetBSD 5.0 is progressing towards a release, and a first release candidat was released this week.

Probably the two most significant improvements in NetBSD 5.0 will be journalling for UFS (nore more fsck, yai!) and the move from XFree to Download now, or have a look at the changes in 5.0 if you need more reasons to check it out.

While talking about NetBSD 5, Izumi Tsutsui has updated his Restore CD for MIPS based Cobalt machines, see his email to the port-cobalt@ list for more details.

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Disclaimer: All opinion expressed here is purely my own. No responsibility is taken for anything.

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