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Anaconda installer archive download page.
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Please also, check out
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The Anaconda Distribution installer is subject to our Terms of Service.
The primary Anaconda, Inc. channel and the top-priority channel in the defaults grouping. Main is actively maintained and supported -- packages receive ongoing updates and security fixes. See https://www.anaconda.com/docs/reference/policies-practices/main and https://www.anaconda.com/docs/reference/policies-practices/security.
End of Support -- Anaconda stopped maintaining the free channel in July 2019, when support for the old compiler stack ended. As of September 2026, the channel is formally End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided. The channel and its contents remain available for historical reference, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. Actively maintained packages are published to the main channel, built with Anaconda's current compiler stack. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- As of November 4, 2025, the Anaconda R channel is no longer actively maintained; it is End of Support under Anaconda's Support Policy. No new R versions, package updates, or security fixes will be provided. The channel and its contents remain available for historical reference, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. See our announcement for more information: https://www.anaconda.com/blog/changes-to-anacondas-r-channel-support. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- The mro channel has been empty since December 2017, when its contents were moved to the mro-archive channel. As of September 2026, it is formally End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided, and the channel remains available for historical reference. Microsoft R Open is no longer maintained upstream, so there is no successor channel; historical MRO packages remain in the mro-archive channel for reference only. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- Anaconda stopped updating the pro channel in February 2017. As of September 2026, the channel is formally End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided. The channel and its contents remain available for historical reference, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. The commercial packages formerly hosted here (MKL optimizations, IOPro, Accelerate) are now open source and available on the main channel. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- The archive channel holds packages that were removed from other channels and is provided for historical reference only; it has never been an actively maintained channel. As of September 2026, it is formally recorded as End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided. The channel and its contents remain available, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. There is no successor channel. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- The mro-archive channel is a static snapshot of the mro channel taken in December 2017, containing outdated versions of Microsoft R Open and MRAN. As of September 2026, it is formally End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided. The channel and its contents remain available for historical reference, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. Microsoft R Open is no longer maintained upstream; there is no successor channel. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
End of Support -- Anaconda stopped publishing new packages to the msys2 channel in December 2025. As of September 2026, the channel is formally End of Support under Anaconda's Support Policy. No new package versions, updates, or security fixes will be provided for this channel. The channel and its contents remain available for historical reference, and existing environments will continue to function. These packages do not receive updates and may contain known, unpatched vulnerabilities, so assess them against your own security requirements before use. New msys2-related build tooling is published to the main channel, which is already enabled in the default configuration. Customers with a written agreement with Anaconda should refer to that agreement and the Support Policy for the support terms that apply to them.
What is Anaconda's defaults channel?
The "defaults" channel is actually three distinct channels, specified in an order that ensures dependencies are solved correctly. These channels are: pkgs/main, pkgs/r, and pkgs/msys2. These channels are automatically configured in your .condarc configuration file when you install Anaconda Distribution or Miniconda.
What about the 'anaconda' channel on anaconda.org at https://anaconda.org/anaconda?
The Anaconda channel on anaconda.org is a mirror of the packages in pkgs/main. If you are using conda's 'defaults' channel, you do not need the 'anaconda' channel.
Using the 'anaconda' channel alone, however, will not provide everything in 'defaults' as the 'defaults' channel also includes packages from both pkgs/r (all platforms) and pkgs/msys2 (Windows only).