Version 1.0.5 is a very minor release. It includes a new build of the Windows
device driver that supports Windows Vista and 2008 Server, and a fix to prevent
an issue that could occur when updating Linux installations from old pre-1.0.3
versions to 1.0.3 or 1.0.4.
It also includes a few very minor fixes and improvements to the controller code,
which doesn't affect most users.
This second commit just bumps version.h. :)
and go ahead and bump version to 1.0.4.
For a while in 1.0.3 -dev I was trying to optimize out repeated network controller
requests by using a ratcheting mechanism. If the client received a network config
that was indeed different from the one it had, it would respond by instantlly
requesting it again.
Not sure what I was thinking. It's fundamentally unsafe to respond to a message
with another message of the same type -- it risks a race condition. In this case
that's exactly what could happen.
It just isn't worth the added complexity to avoid a tiny, tiny amount of network
overhead, so I've taken this whole path out.
A few extra bytes every two minutes isn't worth fretting about, but as I recall
the reason for this optimization was to save CPU on the controller. This can be
achieved by just caching responses in memory *there* and serving those same
responses back out if they haven't changed.
I think I developed that 'ratcheting' stuff before I went full time on this. It's
hard to develop stuff like this without hours of sustained focus.
Version 1.0.2 brings experimental FreeBSD support. It has ONLY been tested
on FreeBSD 10 on an x64 system, and should be considered alpha for this
platform for now.
This version is not going to be pushed out to the entire world via software
update, and the binary version distributed for other platforms via the
zerotier.com web site will remain 1.0.1 as there are no other meaningful
user-facing changes. This is just an interim release to let FreeBSD users
try it out. If you find bugs, please enter them on GitHub or do a pull
request and fix them yourself.
This version is mostly a bug fix release. It fixes a bug that could cause
the service to crash on Windows while running the GUI application. It also
contains a number of fixes to the Linux installer and Linux support for
systemd-based init systems.
It also includes a minor tweak to the multicast algorithm. Version 1.0.0
sent multicasts in a deterministic order, while this version randomizes
the order. The vast majority of users will notice nothing, but this may result
in superior coverage for service announcements on very large networks. It's
a hard variation to test, so we're releasing like this to gather information
from users about the effect. Nothing will change on small networks, and
ordinary multicast functions like ARP and NDP should be unaffected.
The next version will likely focus on additional improvements to Microsoft
Windows support, since there are several known Windows issues in need of
attention. We're working on an NDIS6-based Tap driver that should address
the driver issues experienced by a small number of Windows 7 users.
This version is being tagged and bagged, despite the fact that it's not
going to be released and won't be merged into master until 1.0.0 is ready.
It contains several Linux build fixes, a fix for a unix domain socket resource
leak, and build fixes for the Raspberry Pi.
This version fixes several bugs including an issue with networks that have
EtherType filtering disabled, a file permission issue that affected non-English
versions of Windows, a multicast propagation bug that caused multicasts to
be dropped more often than they should be, and an issue with IP auto-configuration.
It also introduces experimental support for bridging between physical and virtual
networks, a much-requested and powerful ability that's been planned from the start.
ZeroTier One can now replace the functionality of ordinary VPNs, link multiple
offices into a single LAN, and connect virtual machine backplanes in the cloud to
physical networks at home, among other things.
Bridging support isn't "officially" out yet, since the web UI part is still
in development. But when that is done, an official announcement will be
made on the blog and users can try it out. So far bridging has only
been tested under Linux with the Linux kernel's native bridging driver.
YMMV on other platforms. Try it out and let us know by filing bugs at GitHub
or e-mailing them to "contact@zerotier.com".
Version 0.9.0 adds a network-wide toggle for blanket broadcast (ff:ff:ff:ff:ff:ff), contains changes for compatibility with the new web site and netconf server code, and most importantly introduces unique non-conflicting MAC address schemes on a per-virtual-network basis.
The MAC address change is necessary to support bridging, which is the next major feature to be added. It's not absolutely required, but it makes sure that things work properly in the (probably very rare) case that two virtual networks happen to be directly or indirectly bridged together.
The MAC change means that 0.9.0 is a required update. Clients not updating will find themselves unable to communicate with older versions. The underlying protocol is the same, but MAC address resolution and routing will not work properly. Those running binary releases will be updated automatically, while those running from source must download and rebuild.
This version also fixes two minor security issues, including one involving file permissions on non-English Windows versions.
This version fixes a few more issues with TCP tunneling including GitHub issue #63.
It also adds automatic announcement and location of peers on physical LANs (GitHub
issue #56) which should greatly improve performance if you happen to be on the same
LAN or WiFi network as another peer. It can take 60 seconds or so for this to occur,
but it should.
This, quick on the heels of 0.8.0, fixes the fact that TCP tunneling was
broken. :)
There was a bug that only manifested in some cases, and not on my testnet.
I took the opportunity to clean up some of that logic generally. I need a
better testnet, but that will have to wait until we exit beta and hopefully
I can earn a little bit of money off this. A better testnet will require
a big beefy virtualization box or two to run hundreds to thousands of KVMs.
Also fixed a tiny cosmetic issue on Windows. Other than that no changes.
This version introduces a major new feature requested by several users,
both via the user survey and otherwise: TCP tunneling.
If you are not able to communicate over UDP/9993, ZeroTier One will switch to
TCP connections to ZeroTier's supernodes. This is always slower than UDP, but
will allow you to communicate behind all but the most extremely restrictive
firewalls. This TCP traffic travels over port 443 and looks like HTTPS (SSL)
traffic (though it isn't), since that port is almost always open.
This also fixes several minor bugs and attempts to improve the robustness of
Windows tap driver management. Several users have reported spurious issues
with the Windows tap device, though I was unable to reproduce any of these with
clean VMs. (Tried Windows 7 and 8.1, both x86 and x64. No luck.) But I tried
to beef up the tap code anyway in the hopes of catching it. It now tries a lot
harder to make sure the tap is up and running.
There was some significant under the hood refactoring in support of TCP, so
this was a non-trivial change.
I bumped the version to 0.8 to indicate that more and more features are being
crossed off the list as we approach 1.0 and exit from beta. After this, the next
major feature will be LAN announcement to find direct paths to peers on the
same physical LAN. But assuming that 0.8.0 goes smoothly, I am going to divert
attention to the web site. A new design is coming that is much cleaner, sharper,
and easier to use.
Thank you all for all your excellent feedback! We're well on the way to a killer
product that makes conventional VPNs and other kludges obsolete.
Version 0.7.2 marks the first release of ZeroTier One for Windows. Binaries will be
released to a few select testers at first, then to the whole world. Installation from
MSI and auto-update appear to be working. So far Windows 7 and 8 and Windows Server
2008 or newer are supported. Vista has issues so it's not supported at the moment,
and may not be since nobody seems to use it (according to Google Analytics).
This version contains fixes to Linux installation and deployment and adds a
new supernode in Tokyo, Japan. It also has a working Windows installer, though
a bit more testing is going to take place before Windows binaries are
actually released.
Version 0.7.0 commemorates public beta binaries now being in the wild for Mac
and Linux platforms, though this actually happened a few days ago with 0.6.14.
This version fixes two bugs. First, the Linux installer/updater now supports
both systemd and regular SysV init. It will detect which your distro uses at
install/update time and install the zerotier-one service accordingly.
Secondly, this fixes an issue that caused the service to always show ONLINE
in the GUI or 'zerotier-cli info' even if there was no net connection. The
online status should be more reliably reported now.
This version adds persistence of *nix device names (where possible), and fixes
a possible crash in Topology.cpp that was introduced in a previous revision.
It also adds a new supernode located in Singapore!
This version ties up some stuff that remains in the core before binary release.
It adds support for direct interface IP enumeration on *nix systems, as well
as a fix for IPv6 link-local addresses on OSX. This also contains some cleanup
in Peer and some improvements to help detect and route around dead or unreachable
supernodes.
Getting close!
This version fixes a minor NAT traversal issue. In the past, NAT-t links had a timeout
but otherwise were preserved. This version makes them more ephemeral and invalidates
them on sleep/wake or changes in network configuration or environment.
This is because many NAT setups are very fragile with regard to hole punches, so the
past stickiness of links caused dead links to persist too long and break connectivity
between peers.
This is about 75% of what needs to be done to greatly improve robustness. The other 25%
involves detecting failed links or failed relays.
This version is also almost done for the Windows platform, moving us even closer to
binary release.
Not a significant release for OSS users, but this version marks a significant
increase in workitude on the Windows platform. A properly and officially
signed x64 driver is also included. x86 drivers and more Windows work including
Qt UI are coming soon.
Another release leading up to official binary releases... not much to the core,
but quite a bit of work on the UI, installation, and such.
This version will build and run on OSX 10.6 while previous versions would fail
due to a missing getifmaddrs() function.
This version contains no significant changes to the engine itself, just to
the installer, the GUI, and packaging and such. It's all stuff for prep for
the big release, which is fast approaching!
Adam Ierymenko
Adam Ierymenko