contract PrelaunchPoints {

     ...

+    address public newOwner;

     ...

-    event OwnerUpdated(address newOwner);
+    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
+    event NewOwnerProposed(address indexed proposedOwner);

...

-    function setOwner(address _owner) external onlyAuthorized {
-        owner = _owner;
-        emit OwnerUpdated(_owner);
-    }


+    // Step 1: Propose a new owner
+    function proposeNewOwner(address _newOwner) external onlyAuthorized {
+        newOwner = _newOwner;
+        emit NewOwnerProposed(_newOwner);
+    }

+    // Step 2: New owner accepts the ownership
+    function acceptOwnership() external {
+        require(msg.sender == newOwner, "Not the proposed owner");
+        emit OwnershipTransferred(owner, newOwner);
+        owner = newOwner;
+        newOwner = address(0);
+    }

     ...
}
