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The default is "0", which means we no longer attach the server sessions to the client by default. This is a change from previous versions of Apache Traffic Server, but it's a reasonable change since it changes what should be considered a broken behavior. Changing this configuration to "1" will not restore the old behavior, but will instead always attach the server sessions regardless of what proxy.config.http.server_max_connections is set to.
TLS
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1.1 and 1.2 Configurations
There are two new options to turn off or on TLS 1.1 and TLS 1.2. By default TLS 1.2 is off, for now, because of a problem with TLS 1.2 crashing in openssl 1.0.1a and 1.0.1e. There is an open issue with openssl http://rt.openssl.org/Ticket/Display.html?id=3200.
CONFIG proxy.config.ssl.TLSv1_1 INT 1 CONFIG proxy.config.ssl.TLSv1_2 INT 0