We can say commercially delivered since it's still at TLS
Just to nitpick, the final registration being applied may only mean that the customer has technically accepted the aircraft. The transfer of property may still have to be completed (= final payment to be made and papers to be signed).
In this case, I take note that K confirms that the handover has happened.
02 Oct 2018 Male (MLE) Doha (DOH) QR673 02 Oct 2018 Doha (DOH) Male (MLE) QR672 01 Oct 2018 Muscat (MCT) Doha (DOH) QR1137 01 Oct 2018 Doha (DOH) Muscat (MCT) QR1136 01 Oct 2018 Kuwait City (KWI) Doha (DOH) QR1075 01 Oct 2018 Doha (DOH) Kuwait City (KWI) QR1074 29 Sep 2018 Toulouse (TLS) Doha (DOH) QR3352