Update: We’re revising our Windows support timeline announced in December 2025. After reviewing Microsoft’s Enterprise and Education support schedules, we’re extending Windows 11 version 23H2 support through November 10, 2026, to align with Microsoft’s enterprise lifecycle and provide our customers with additional planning time.

In accordance with Microsoft’s support timelines, Anaconda will discontinue support for new package releases on Windows 10 (effective June 30, 2026) and Windows 11 versions 23H2 and earlier (effective November 10, 2026).

Background

This decision follows Microsoft’s discontinuation of Windows 10 support on October 14, 2025, and the end of support for Windows 11 version 23H2 on November 11, 2025 (Home/Pro editions) and November 10, 2026 (Enterprise/Education editions). At Anaconda, we recognize that planning for operating system upgrades can take time. That’s why Anaconda is maintaining support for Windows 10 beyond Microsoft’s support timeline and aligning Windows 11 23H2 support with Microsoft’s Enterprise/Education lifecycle.

What This Means

After June 30, 2026 (Windows 10):

  • Anaconda will no longer verify that new package releases function correctly on Windows 10
  • Bug reports specific to Windows 10 will not be addressed
  • New packages may continue to work on Windows 10, but Anaconda will not test or validate compatibility

After November 10, 2026 (Windows 11 version 23H2 and earlier):

  • Anaconda will no longer verify that new package releases function correctly on Windows 11 version 23H2 and earlier
  • Bug reports specific to Windows 11 version 23H2 and earlier will not be addressed
  • New packages may continue to work on these operating systems, but Anaconda will not test or validate compatibility

Note for Windows 11 Home/Pro users: Microsoft ended support for Windows 11 Home and Pro version 23H2 on November 11, 2025. While Anaconda will continue support through November 10, 2026, we strongly recommend upgrading to a Windows version that has active vendor support from Microsoft.

Important: Previously built packages will remain available in our repositories and are not affected by these changes. Your existing environments will continue to function as they do today, and you can continue to download any packages we have previously built.  

Understanding Anaconda’s Current Support

Anaconda performs quality assurance testing on Windows operating systems we support to validate our package distribution, but we do not guarantee that all packages will be able to work on specific operating systems. If an upstream package maintainer introduces changes that break compatibility, Anaconda may not be able to fix the issue directly, though we will make best efforts to work with upstream maintainers on problems affecting operating systems we support and test.

Why We Made This Decision

This decision reflects:

  • Microsoft’s discontinuation of Windows 10 support on October 14, 2025
  • Microsoft’s discontinuation of Windows 11 version 23H2 support on November 11, 2025 (Home/Pro editions) and November 10, 2026 (Enterprise/Education editions)
  • Increasing difficulty of obtaining test infrastructure for operating systems without vendor support

Anaconda’s package building infrastructure targets Windows Software Development Kit (SDK) versions rather than specific Windows releases. While most packages built against our current SDK will likely continue to function on these older operating systems, Microsoft’s discontinuation of support makes it increasingly difficult to acquire the test infrastructure needed to validate compatibility.

Recommended Actions

For Systems Able to Upgrade:

Upgrade to a Windows version that has active vendor support from Microsoft (Enterprise and Education support dates) (Home and Pro support dates):

  • Windows 10 (all editions): Support ended October 14, 2025
  • Windows 11 23H2 (Home/Pro): Support ended November 11, 2025
  • Windows 11 23H2 (Enterprise/Education): Support ends November 10, 2026
  • Windows 11 24H2 (Home/Pro): Support ends October 13, 2026
  • Windows 11 24H2 (Enterprise/Education): Support ends October 12, 2027
  • Windows 11 25H2 (Home/Pro): Support ends October 12, 2027
  • Windows 11 25H2 (Enterprise/Education): Support ends October 10, 2028

For Systems Unable to Upgrade:

We recommend taking one of these actions:

  • Evaluate hardware replacement to enable upgrading to a vendor-supported operating system
  • Continue using new Anaconda packages on operating systems without vendor support with the understanding that operating system-specific issues will not be addressed

Timeline

  • December 30, 2025: Announcement of Windows 10 and Windows 11 23H2 and earlier end of support
  • June 30, 2026: Anaconda discontinues Windows 10 support
  • November 10, 2026: Anaconda discontinues Windows 11 version 23H2 and earlier support

Going forward, Anaconda will continue to align our Windows operating system support with Microsoft’s Enterprise and Education support timelines. We recommend staying current with Windows 11 updates to maintain both Anaconda compatibility and vendor support from Microsoft.

For questions regarding this transition, please do not hesitate to reach out to your Anaconda representative or contact our support team.