Azure AD Connect v184.108.40.206 was the first v2.x to be announced with Automatic Upgrades functionality, on July 6th 2022. However, Azure AD Connect installations with custom synchronization rules fell out of scope for this feature, as were v1.x installations in the past. Azure AD Connect v220.127.116.11 offers to correct this oversight. Actually, this version is available for Automatic Upgrades only.
Azure AD Connect v18.104.22.168 offers functional changes and bug fixes.
Automatic Upgrades with custom synchronization rules
Microsoft has enabled the Automatic Upgrades feature for Azure AD tenants with custom synchronization rules.
Deleted (not disabled) default rules will be re-created and enabled upon Auto Upgrade.
Agent Updater is now part of the installation
Microsoft has added the Microsoft Azure AD Connect Agent Updater service to the install.
WebService Connector Config is no longer part of the installation
Microsoft has removed the Synchronization Service WebService Connector Config program from the install.
Microsoft has made improvements to accessibility. Additionally, Microsoft has made the Microsoft Privacy Statement accessible in more places
Version 22.214.171.124 of Azure AD Connect was made available for Automatic Upgrade on May 23rd, 2023.
You can download the latest version of Azure AD Connect here.
This link is to download version 126.96.36.199, not version 188.8.131.52.