History

The change history logs actions taken in Optimizely Feature Experimentation projects and flags.

Optimizely Feature Experimentation logs actions performed for a project and for a flag, such as creating an event, modifying a rule, and adding and removing audiences. These actions are listed in the change history, which displays the record of user activity for each of your projects and flags.

If an experiment starts to behave strangely or stops working correctly, you can troubleshoot by checking the change history to see which changes were made, when, and by which collaborator. The detailed change history creates an activity trail that provides additional security to individuals and teams with multiple collaborators.

Project history

Each project's change history is listed on the History tab.

Use the drop-down lists to filter by change Type, Date, and Source (change through the API or Feature Experimentation UI).

Change details

The change history details display information about each change, along with the original (before changes) in red on the left side and the updated code (after changes) in green on the right side. The change history details are structured the same way as the Optimizely Feature Experimentation REST APIs. See About the Feature Experimentation APIs for information.

For a specific change, click Show details to see a description of the update. To collapse the change details, click Hide details.

Press Alt (Windows) or Option ⌥ (Mac) + click Show details or Hide details to show or collapse all change details.

Project changes that are tracked

Attributes

Creation
Key update
Description update

Audiences

Creation
Name update
Description update
Condition update

Environments

Creation
Name update
Key update
Description update
Restricted access
Archive or unarchive

Events

Creation
Name update
Key update
Description update
Event property updates

Flags

Creation
Deletion
Archive or unarchive

Mutual exclusion groups

Create
Name
Description
Experiment
Traffic allocation

Project settings

Create
Update project name
Update project description
Update statistical significance percentage
Create webhook
Rename webhook
Update a webhook's URL

Rules

Create **
Update rule name
Update audience conditions
Update traffic allocation
Add metric
Delete metric
Re-order metric
Update distribution method
Update variation delivered
Update variation traffic allocation
Add variation
Delete variation
Add, update, or delete allowlist
Duplicate rule **
Delete rule **

Rulesets

Run or pause a flag in an environment
Change rule priority
Add, delete, or duplicate a rule **

Variations

Create
Update existing variation name
Delete variation

** Create, delete, and duplicate rule history is listed in both the ruleset updates and the rule updates.

Project changes that are not tracked

Account

Any changes

Environments

Secure

Project settings

Regenerate webhook secret
Delete webhook
Anything update in the Integrations tab
Anything updated in in the Collaborators tab
Default time zone update
Display currency update
IP anonymization
Bot filtering

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Note
Default environments do not have corresponding change history with project creation.

Flag history

To see a flag's history, go to a flag, then click History.

The flag's change history works similarly to the project's change history. Use the drop-down lists to filter by Type, Date, and Source (change through the API or Feature Experimentation UI).

For a specific change, click Show details to see a description of the update. To collapse the change details, click Hide details. Press Alt (Windows) or Option ⌥ (Mac) + click Show details or Hide details to show or collapse all change details.