Does Matomo Support Redis using Encryption in Transit (TLS)

General questions
1

Through modifying my Matomo instance’s config.ini.php file to include details about redis like so:

[Cache] 
backend = redis 
 
[ChainedCache] 
backends[] = array 
backends[] = redis 
 
[RedisCache] 
; Redis server configuration. 
host = "some.host" 
port = 6379 
; instead of host and port a unix socket path can be configured 
unix_socket = "" 
database = 14 
; In case you are using queued tracking: Make sure to configure a different database! Otherwise queued requests might 
; be flushed

In trial 1:

I attempt to connect Matomo to a redis cluster using encryption in transit over TLS. This fails.

In trial 2:

I attempt to connect Matomo to a redis cluster that is not using encryption in transit. This succeeds.

This leads me to believe that Matomo does not support encryption in transit when connecting to redis. Is that true?