---
title: Optimizely Changelog
sidebar_position: 100
description: All notable changes to the Optimizely plugin will be documented in this file.
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pagination_prev: plugins-ext/episerver/docs/upgrading
section: Plugins
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---

# Changelog

All notable changes to this project will be documented in this file.

## [4.1.4]

Mark `ZipCode` and `PostalCode` properties as obsolete. Fixed an issue in express address mapping.
Polling uses same logic as fallback for order processing.

## [4.1.3]

Fix error in polling service.

## [4.1.2]

Upgrade log4net to 2.0.10 due to vulnerability.

## [4.1.1]

Addressed an issue with thread synchronization.

## [4.1.0]

Upgraded to .NET Framework 4.7.2 and fixed an issue with Azure load balanced servers.

## [4.0.1]

Fixed issue with Edit Purchase Order in Commerce Manager not finding correct `UserControl` for `VippsOrderId` property.

## [4.0.0]

First version released on Optimizely NUGET.

[Upgrading from previous versions](https://developer.vippsmobilepay.com/docs/plugins-ext/episerver/docs/upgrading.md)

## [1.0.0]

Initial release.

> **Full site overview:** For every page in this documentation, read [https://developer.vippsmobilepay.com/llms.txt](https://developer.vippsmobilepay.com/llms.txt).