# Document revisions
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| Change | Description | Date | 
| --- |--- |--- |
| [Whitepaper updated](#document-revisions) | Added AWS Cloud WAN and Transit Gateway connect attachment options, updated diagrams and information throughout. | April 5, 2023 | 
| [Whitepaper updated](#document-revisions) | Added AWS Transit Gateway and AWS Client VPN options, updated diagrams and information throughout. | June 6, 2020 | 
| [Minor update](#document-revisions) | Minor change to fix reference to software VPN appliance. | May 20, 2020 | 
| [Whitepaper updated](#document-revisions) | Updated information throughout. Focus on the following designs/features: transit VPC, Direct Connect gateway, and AWS PrivateLink. | January 1, 2018 | 
| [Initial publication](#document-revisions) | Amazon Virtual Private Cloud Connectivity Options published. | July 1, 2014 |