We have completed our first releases at Eclipse Temurin and will be
updating this FAQ as and when things are completed and available. If
you want to talk to us or ask additional questions the best place is
our slack instance or
via an issue in the
channel if your question is not covered by one of the entries
Most of the Eclipse Temurin builds with HotSpot for
JDK8, 11 and 17 are now available on this site.
Short answer: The project got so big that we chose to
move under the Eclipse
announced last year to provide us some additional stability for the future!
Longer answer: The builds you know as AdoptOpenJDK are now
"Eclipse Temurin by Adoptium"
blog post) Don't worry though - despite the branding changes it
is the same open build processes, AQAvit test suites and primarily the same team
producing them as before, but there are
more larger companies
now involved in the working group.
Two reasons. Firstly: Since users are still transitioning we
have left the old site working as it did before with the same layout
and buttons as before. The links on the old site will give you the
latest Temurin builds, but this should not be relied on and users
should begin to migrate over to using the Adoptium API and website to download
Temurin binaries. There are some variants which are not yet available
at Adoptium, and these can
still be obtained through the old site, so
we are not removing the old site as this would result in some
functionality disappearing with no warning. It's not ideal, and
causes some SEO confusion, but we feel it is the right option for
now. In the future the Adoptium web site will be more than just
Temurin so a pure redirect at between the domains would not ba appropriate.
Secondly: As alluded to at the end of the previous
paragraph, some things are not available at Adoptium.net and so a
the old web site is retained without an explicit redirect in order to
continue hosting them at present. This
includes things like the
JDK Mission control
installers (We're working on this - see
later FAQ entry) and we
would expect to get lots of complaints if this stuff just disappeared
from view and that would not be the best option for our customers..
This is the project and brand name for the binaries that the Eclipse
Foundation produces. You can think of these as the successor
binaries to AdoptOpenJDK. However, it is important to note that
these binaries are just one of many that will eventually be in the
Eclipse Adoptium Marketplace. While we appreciate that the
Adoptium/Temurin name split is more confusing that just “Adoptium”,
this is similar to how other vendors brand their binaries, e.g.
Amazon has Corretto, Azul has Zulu (and others). The “Adoptium”
project and working group will deal with more than just Temurin so
the distinction is important to maintain.
The transition to Adoptium means we have unfortunately not been able
to continue to distribute builds of Eclipse OpenJ9. IBM has now
taken them over and they are now available as "IBM
Semeru". There is no need to be concerned about the change - it
is still free.
Due to the limited amount of people we have working on the project,
maintaining the wide variety of docker images that we provided from
AdoptOpenJDK was becoming unsustainable. For that reason we are
releasing a cut down set of docker images for Temurin. For those
users who want a containerized Linux distribution that we don't
provide an image for, use
We are working on a solution for that at the moment with
issue as an umbrella for the work
The agreements that we have since moving under the Eclipse Foundation
mean that we can no longer include IcedTea-Web in our installers.
However, you can still add the functionality if you require it using the
There is a
new download API
provided by Adoptium for downloading Eclipse Temurin builds.
The good news is that it looks very like the AdoptOpenJDK one did so
migration isn't too difficult for anyone currently using it.￼
At present the AdoptOpenJDK API will redirect to
Temurin (or Semeru) if available when you request the latest release
builds. We have done this because we haven't had time to encourage
the community to fully migrate and because we haven't released
everything yet so there are missing builds in the Adoptium API. Note
that this will be a temporary measure and the
AdoptOpenJDK API is not expected to be retained forever to do this
although the timescale for removing the redirection is still to be
The people involved in the project are passionate about promoting it
and we are keen to find ways to promote the work we do at Adoptium
and with the Temurin binaries so feel free to get in touch with us if
you have a forum you wish us to participate in and we will see what
we can do. In general contacting the team via Slack is the best way
to engage with us.