For what it's worth, I'll share my experience with my (first ever) rejection notice here.
Once the update had been applied, all I had to do was re-transmit my return(s). I had an "Accepted" email within 5 minutes. I will say, though, that the update that fixed my issue wasn't released until late in the evening on the promised date. That said, you may want to wait until the following day (in this case, May 1) to re-submit your rejected return.
Here's hoping that this update will make your re-submission smooth as silk. By the way, TurboTax decided a year or two ago to no longer release the content of the updates. I'm not sure of the logic, but it's my understanding that this policy will remain in force.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
