security.tls.version.min specifies the minimum required protocol version (thus, the lowest version allowed to fall back to when higher versions are not available).
security.tls.version.max specifies the maximum supported protocol version (thus, the highest version to initiate a connection with before falling back to lower versions).

0
SSL 3.0 is the minimum required / maximum supported encryption protocol. (Default up to FF/TB 33.0 and SM 2.30 for minimum version.)

1
TLS 1.0 is the minimum required / maximum supported encryption protocol. (This is the current default for the minimum required version.)

2
TLS 1.1 is the minimum required / maximum supported encryption protocol.

3
TLS 1.2 is the minimum required / maximum supported encryption protocol. (This is the current default for the maximum supported version.)

As we can see the default Linux disk encryption implementation has a significant impact on our cache latency in worst case scenarios, whereas the patched implementation is indistinguishable from not using encryption at all. In other words the improved encryption implementation does not have any impact at all on our cache response speed, so we basically get it for free! That’s a win!