Starting from 4D V16R5, the default minimum supported TLS version is 1.2.
The old TLS versions were kept for compatibility purposes in order to give users a possibility to connect to old browsers using one of the following :
TLSv1_0 (TLS 1.0, introduced in 1999)
TLSv1_1 (TLS 1.1, introduced in 2006)
TLSv1_2 (TLS 1.2, introduced in 2008)
To switch back to one of the old protocols, execute the command SET DATABASE PARAMETER with a new selector Min TLS version.
- The 4D Internet Commands plugin uses a different network layer, therefore this selector will have no impact on its TLS version.
- This setting is ignored for your client server connections if your 4D Server uses the legacy network layer.