Latest Releases

Download our latest releases below - or use the left-menu to browse the release notes, bug fix list, and other release-related material.

  • DynamicWeb 9 minors are released biannually
  • Hotfixes are released on a need-to basis between major releases, usually on tuesdays

If you're upgrading a custom solution please consult this section first.

19/1-2026: Severity: Critical CVSS v3.1: 10.0 Affected product: Dynamicweb 9 and Dynamicweb 8 Affected versions: All Dynamicweb 9.* and 8.* versions
(DynamicwebSoftware.Security.DevOps27005.dll) Reported by: External security researcher

All solutions (Dynamicweb 8 and 9) hosted on Dynamicweb Cloud have received the fix. The fix was fully rolled out to our cloud by 19 January 2026.

The fix is included in the following versions:

Dynamicweb 9.19.6
Dynamicweb 9.20.3
Dynamicweb 9.21.0
DynamicwebSoftware.Security.DevOps27005.dll (stand-alone hotfix for Dynamicweb 8 and 9)

Customers running other Dynamicweb 9 versions and customers running any Dynamicweb 8 version can apply the stand-alone hotfix, delivered as a DLL, which mitigates the vulnerability.

Custom solutions and 9.10+

Dynamicweb 9.10 contains minor breaking changes related to the journey towards .NET standard. Small parts of Dynamicweb.Rendering namespace in Dynamicweb.dll has been moved to the seperate Dynamicweb.Rendering.Providers package/dll. Just add a reference to that package and the code works as usual.

Custom solutions and 9.9+

Dynamicweb 9.9 and up contains assemblies build for .NET Standard - it does not require any additional changes to projects to use these assemblies.

Custom solutions and 9.7+

Dynamicweb 9.7 requires .NET Framework 4.7.2. This is a necessary step towards making the application .NET Core compatible. Please ensure all self-hosted solutions have .NET 4.7.2 installed before upgrading to DW 9.7.

Custom solutions and 9.6+

When upgrading to 9.6+ for the first time, please delete the following dlls from the /bin folder:

  • Dynamicweb.Content.Social.Adapters.FacebookAdapter.dll
  • Dynamicweb.Content.Social.Adapters.GooglePlusAdapter.dll
  • Dynamicweb.Content.Social.Adapters.LinkedInAdapter.dll
  • Dynamicweb.Content.Social.Adapters.TwitterAdapter.dll

You must also overwrite web.config (or merge non-standard content with the released version).

As always, stop the application pool before upgraing - if not, dlls which are in use (e.g. ABCpdf or ImageGlue) may not be properly overwritten.