Qantas Frequent Flyer - Minor Domestic Schedule Changes

Some minor domestic schedule changes effective late-March:
BNE/PER/BNE - becoming 3x daily 763 and 1x daily 73H, up from 2x daily 763 and 2x daily 73H.
BNE/ISA/BNE - new 734 service on Wednesdays
BNE/MEL/BNE - increase in 763 flying
PER/DRW/PER - new 73H service on Mondays
MEL/CBR/MEL - 763s operating some services again
MEL/LST/MEL - double daily DH3
From June onwards:

SYD/PER/SYD - 747-300s are being replaced with 737-800s and 767-300s on some QF583 SYD/PER 19.20/22.25 and QF568 PER/SYD 00.15/06.15 services. Looking around August, there appears to be no more PER/SYD 747-300 redeye flights.

Please let me know if you see anymore...

Cheers

When did the PER/SYD redeye change flight number from QF 518 to QF 568? Or is this something which has come about as a result of the new season schedules?