Release Candidate for Newsletter Studio on Umbraco 17

Today we're excited to announce the first Release Candidate of Newsletter Studio for Umbraco 17!

Umbraco 17 is the next LTS (Long Term Support) version of Umbraco, scheduled for release on November 27th 2025, and we’ve been working hard to ensure that Newsletter Studio is ready from day one.

What’s new?

With this RC we’re introducing full support for Umbraco 17 along with a set of improvements that we think you'll really appreciate.

New folders for themes

We've added support for themes stored in two new folders in App_Plugins: newsletterStudio and newsletterStudioExtensions. This gives you more flexibility when organizing and extending your themes.

Rich text editor improvements

We're improved the styles in the rich text editor and added support for inserting HTML from a Merge Field. This is useful e.g. when inserting unsubscribe links.

Solid support for compiled Razor views

Due to the upcoming deprecation of Razor Runtime Compilation, we've ensured a solid support for compiled Razor views, this also fixes some issues with Macros when Umbraco was configured to run in Production Mode.

Local time handling for all dates

All dates are now stored in UTC and automatically displayed in the user’s local time zone. A migration will kick in during upgrade to normalize any existing dates in your database.

Try it today!

Just install using your favorite NuGet tool:

dotnet add package NewsletterStudio --version 17.0.0-rc1

As always, please make sure to back up your files and database before installing or upgrading. If you run into any issues, don’t hesitate to reach out.

We’ve been testing extensively on Windows, Linux, and Mac—and this is shaping up to be one of our best releases yet.

Links

Release notes
http://newsletterstudio.org/versions/17/

NuGet
https://www.nuget.org/packages/NewsletterStudio/17.0.0-rc1 

Documentation
https://www.newsletterstudio.org/documentation/package/getting-started/installation/