--- title: "Version Change Notes" slug: "version-change-notes" updated: 2023-04-26T07:11:06Z published: 2023-04-26T07:11:06Z canonical: "developer.comm100.com/version-change-notes" --- > ## Documentation Index > Fetch the complete documentation index at: https://developer.comm100.com/llms.txt > Use this file to discover all available pages before exploring further. # Version Change Notes This guide can be used in conjunction with API version and version documentation for clear identification and understanding of the upgrades. Incorporating all the changes or modifications enlisted in this guide updates your API to the latest APIs version. ## API version 4.0(2021-06-07) - **New Features** The following are the newly added objects in the API v4.0. Click on the objects to see their details. [Action Type](/server-api-global-setting-action-type) [Credit Card Masking Config](/server-api-global-setting-credit-card-masking-config) [Custom Away Status Config](/server-api-global-setting-custom-agent-away-status) [Department Config](/server-api-global-setting-department-config) [Login IP Allowlist Config](/server-api-global-setting-login-ip-allowlist) [Module](/server-api-global-setting-module) [Password Policy Config](/server-api-global-setting-password-policy-config) [Restricted Words Config](/server-api-global-setting-restricted-words-config) [Role Config](/server-api-global-setting-role-config) [System Avatar](/server-api-global-setting-system-avatar) - **Feature Enhancements and Changes** 1. API_key Authentication When using API key to call the interface, you need to bring the parameter siteId. For Example: GET https://api11.comm100.io/v4/livechat/campaigns?siteId=10000 - **Bug Fixes**