It is a worry when the software in the sim you train in for a single seat aircraft (no trainer) will always be at least 1 to 2 generations behind that in the aircraft......
The simulator is treated as the first aircraft after the Proof Installation; both in hardware and software terms. If the sim isn't at the same build standard, then you can't demonstrate you are the requisite maturity level, so can't get money to enter production. You are only allowed a lag during development. Any lag is a huge red flag.