WHY:

* Jackie Trad resigns from cabinet and her roles as deputy premier and treasurer following allegations she interfered in the selection process for the principal of a new high school in her South Brisbane seat.

* The Crime and Corruption Commission on Saturday confirms it is investigating the claims.

* It is the second integrity probe into Ms Trad in 12 months.

* The first related to her failure to properly declare a $695,500 home she bought in March 2019, located near the Cross River Rail project she was overseeing at the time.

* Queensland's corruption watchdog looked into the matter but found no evidence to support a reasonable suspicion of corrupt conduct.

* However, it did push for changes to the way conflicts of interest are dealt with, including criminal penalties if MPs fail to declare such conflicts and don't update their register of interests.

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WHO:

* Health Minister Steven Miles is promoted to deputy premier

* State Development, Manufacturing, Infrastructure and Planning Minister Cameron Dick also appointed treasurer

* Tourism Minister Kate Jones to take on state development portfolio

* Fire and Emergency Services Minister Craig Crawford to handle Aboriginal and Torres Strait Islander portfolio

* Assistant minister and Member for Mackay Glenn Butcher promoted to cabinet as the minister for regional development and manufacturing

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WHEN:

* Queensland's new cabinet will be sworn in on Monday

* The permanent appointments will remain in place until the next state election, slated for October.

Australian Associated Press