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Important Update for ArcGIS and TLS


Esri is committed to providing strong security for the ArcGIS platform by using the latest industry standards and best practices for security protocols. To meet these requirements, starting April 16, 2019, Esri is updating ArcGIS Online to enforce the use of TLS (Transport Layer Security) version 1.2 only.

This update is likely to affect most ArcGIS software and customer solutions. If you have not updated and validated your system's support for TLS v1.2 only, you may lose your ability to connect to ArcGIS Online.

More details about Esri's support for TLS, including patches and instructions for updating software, can be found by visiting https://support.esri.com/en/tls.

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Important Update for ArcGIS and TLS

Esri is committed to providing strong security for the ArcGIS platform by using the latest industry standards and best practices for security protocols. To meet these requirements, starting April 16, 2019, Esri is updating ArcGIS Online to enforce the use of TLS (Transport Layer Security) version 1.2 only.

This update is likely to affect most ArcGIS software and customer solutions. If you have not updated and validated your system's support for TLS v1.2 only, you may lose your ability to connect to ArcGIS Online.

More details about Esri's support for TLS, including patches and instructions for updating software, can be found by visiting https://support.esri.com/en/tls.

Who Is Affected?
Users of most ArcGIS software or custom solutions using Esri technology may be affected by this planned update to TLS protocol v1.2.

What Do I Need to Do?
Go to the Esri TLS Support page for information, patches, and instructions for updating software for TLS v1.2. Patches for all versions of ArcGIS Desktop back to 10.2.1 are now available.

How Do I Validate My Systems Beforehand?
Esri is providing a validation web service that can be used to quickly verify that ArcGIS Desktop will work when TLS v1.2 only is enforced. Esri is also providing validation services for customers utilizing third-party apps and custom components including map services, geocoding services, and basemap services. Information about these validation services is available on the support site link above.

If this email is not applicable to you, please forward it to the one who manages your ArcGIS software or custom solutions using Esri technology.