PLAXIS 2D 2023 and PLAXIS 3D 2023 can be downloaded via the Bentley Software Downloads pages: https://softwaredownloads.bentley.com/
General download and installation directions are available here.If you want to see what's new, read the Release notes*) You can also find the PLAXIS CONNECT Edition downloads on these download pages
All dongle/hardware lock (HWL) based versions of PLAXIS 2D/3D are treated as "V8i SELECTseries 10" according to Bentley's Support Policy. This means that Bentley will discontinue support for hardware lock based versions of PLAXIS after December 31, 2021. This includes PLAXIS 2D 2019 and older, and PLAXIS 3D 2018 and older.
To see the benefits of the latest versions and how to get the latest version, please see PLAXIS CONNECT Edition: upgrade from Hardware lock to Flexible licensing
Older PLAXIS versions, prior to the CONNECT Edition can be obtained upon request by submitting a Service Request: https://apps.bentley.com/srmanager/ProductSupport
How to create a deployment image for PLAXIS 2D/3D [PLAXIS]