TLS 1.0 and 1.1 are deprecated for use with Azure Cache for Redis

  • To resolve the issue, consider one of the following options:
    • Upgrade your instance to SC XP 9.0 Initial Release or higher.
      Higher Sitecore versions target higher framework versions that use TLS 1.2 by default.
    • Upgrade the StackExchange.Redis.StrongName.dll V1.0.488 to StackExchange.Redis.dll V1.2.6 as defined below.
      1. Download StackExchange.Redis.StrongName Version 1.2.6 from
      2. Replace existing dll of StackExchange.Redis.StrongName with the downloaded one under the instance bin folder.
      3. Add binding redirect to the Web.config file:
           <assemblyIdentity name="StackExchange.Redis.StrongName" publicKeyToken="c219ff1ca8c2ce46" xmlns="urn:schemas-microsoft-com:asm.v1" />
           <bindingRedirect oldVersion="" newVersion="" xmlns="urn:schemas-microsoft-com:asm.v1" />
      4. Update a connection string to the Redis cache with additional parameter SslProtocols=Tls12, e.g:
        <add name="redis.sessions",password=your-redis-password=,ssl=True,abortConnect=False,SslProtocols=Tls12" />
      5. Restart the Sitecore instance.

Applies to:

CMS 8.0 Initial Release - 8.2 Update-7

March 30, 2020
March 31, 2020

Reference number: