DPMA 3.6.3 has been published to the testing repo. Until just now, 3.6.3 RC1 was the latest version available.
# yum list asterisk16-res_digium_phone
Loaded plugins: fastestmirror, versionlock
Loading mirror speeds from cached hostfile
Installed Packages
asterisk16-res_digium_phone.x86_64
[root@uc-51459655 ~]# yum list asterisk16-res_digium_phone
Loaded plugins: fastestmirror, versionlock
Loading mirror speeds from cached hostfile
Installed Packages
asterisk16-res_digium_phone.x86_64 3.6.3-2.sng7 @sng7-testing
> digium_phones show version
Digium Phone Module for Asterisk Version 16.0_3.6.3
Thanks @wmoon