what changed from libopus 1.5.2-73 to 1.5.2-320 quality wise?

[geextahslex]

Hi, I have noticed that libopus gives a slightly different result (simple music convert) between 7.1.1 (opus v1.5.2-73-gc79a9bd1) and 8.0.1 (opus v1.5.2-320-g2c0b1187)
Null test doesn't pass, so the difference is not cosmetic. And also the size is smaller by 2 bytes or something. There are no oficial patch notes, so there is not much insight.

Thanks for any help :)

[GyanD]

This is specific to libopus and not the build so try asking here: https://hydrogenaudio.org/index.php/board,71.0.html