Sony Mobile has released new firmware for the Xperia XZ and XZs, which moves the build number from 41.3.A.2.184 to version 41.3.A.2.192. The latest update adds the October 2018 Android security patches, but there seem to be few other changes. By now, it does look like the Xperia X Performance is not receiving anymore updates, as it used to be on the same software track, but hasn’t received an update since June. Let us know if you’ve noticed any other changes on the comments below.
Thanks Diogo and Ivan!