32.2.A.0.224 firmware has been uploaded as open source archive on Sony Developer site recently which could mean it will land very soon.
32.2.A.0.224 firmware update coming soon
Sony Community support staff confirmed recently that a new update is scheduled to release in June which could mean 32.2.A.0.224 firmware (not said explicitly).
[UPDATE] Xperia Z5 32.2.A.0.224 firmware rolling – Android 6.0.1 Marshmallow update, Check here.
Check out the statement made by Sony support staff below.
We will keep you updated once 32.2.A.0.224 firmware roll out begins.
Let us know if you are facing any issues with the Android 6.0.1 Marshmallow firmware on your device.
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