Archived Optimizely documentation

3 Articles

Released functionality

8 min

Updated17 Sep 2026

The following table shows when features were introduced or updated (so you can see the features that await you if you upgrade). Dictionaries.

Obsolete functionality

1 min

Updated07 Aug 2026

From time to time, information about features that are no longer available, are replaced by new functionality, or are removed. The table in this section shows user guide versions that contain functionality from previous versions of the software.

Versioned user guides and release notes (2021 and older)

10 min

Updated17 Sep 2026

This page shows links to documentation that is specific to your Optimizely implementation if you have CMS Core 12, CMS UI 12, Commerce 14, or Search & Navigation 14 that was versioned before September 2021. For example, suppose you have Optimizely Content Management System (CMS) Core version 11.