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Announcement
August 2, 2019

UPDATED We have produced a short YouTube video by Darin Green, to more clearly explain what these changes are and who will be affected.  That video can be viewed here.
Please note, not ALL customers are affected by this TLS update.  Please read this blog in its entirety and click the links to see EXACTLY which software and version will be affected.  If you don’t have those versions, you will not be affected.
 
If you are running 2014, 2015, 2016, or 2017 versions of Autodesk software, this information pertains to you.
You have until AUGUST 3, 2019 to act.
Issue:
Transport Layer Security (TLS) 1.0/1.1 is vulnerable to main-in-the-middle (MITM) attack that can compromise data exchanges.  This applies to single-user subscribers using the following products – customers using software or versions not listed and customers using perpetual or multi-user (network) licenses will not be affected.  This also impacts some cloud-connected features of products such as Revit, Dynamo Studio, etc.
Environment:
Since user subscribers are impacted with a selection of Autodesk software used on Windows, Mac, and Linux versions 2014, 2015, 2016, and/or 2017.  For products such as Revit, all versions (2014-2020) are potentially impacted, depending on the cloud-connected features used.
Solution:
To align with industry best practices for security and data integrity, Autodesk Identity Services will move to Transport Layer Security (TLS) 1.2 and stop supporting TLS 1.0 and TLS 1.1. on AUGUST 3, 2019.
The best solution to avoid connectivity issues is to download and install a newer version of your software through your Autodesk Account.  Failing to apply these patches may result in interrupted software access and connectivity.
Autodesk Knowledge Network Article