Deprecated features in 12.4.0/12.4.1 firmware.

The Deprecated features in 12.4.0/12.4.1 firmware. 

These features are deprecated on all SMA appliances in SMA 12.4:

======================================================

• TLS 1.0 and TLS 1.1 TLS 1.0 and TLS 1.1 are no longer supported for user sessions and supported only for outgoing connections to internal resources.
  If you have configured TLS transport protocol as “Any TLS version” or “TLS version 1.2 or 1.1” in prior version of SMA, upgrading to SMA 12.4 is prevented. To upgrade to SMA 12.4, select “TLS version 1.2 only” in AMC and proceed with the upgrade process.
  
  
• Legacy SSO Legacy SSO is deprecated and enhanced with Dynamic Single Sign On feature.
  If you wish to use the Legacy SSO, you can still use by enabling the CEM setting to AMC_SHOW_LEGACY_SSO_PROFILES=true.
  
  
• Connect Tunnel Legacy Connect Tunnel Legacy and Connect Tunnel Service are deprecated from 12.4.1 onwards.
  For more information, refer to the Connect Tunnel User Guide.

NOTE: Please refer the 12.4 admin guide for more details and always before upgrading check the unsupported/deprecated/new features of the firmware you are planning for upgrade.