NiFi Media server size in 12.12.0 is much smaller than the one in release 12.8

The media server in IDOL release 12.12.0 is much more smaller than the one in IDOL release 12.8.0:

-rw-r--r-- 1 root root 1.8G Mar 1 2021 ../../IDOL12.8.0/LINUX/
-rw-r--r-- 1 root root 407M Jul 20 10:10

I wondered if we can use to replace original media server?

Is there any functional regression?