Here's a quick update for anyone following this thread. I got an email this morning (April 3rd) telling me the issue had been solved. I filed my Netfile without any issues.

@aperezv We are glad to hear that. Thanks for the update.

Hi there, not fixed yet for me. Although now there is a message when you try to file that turbo tax is working to fix the issue with CRA, and to come back after April 14. I am surprised it took that long to put up that message given the community signalled there was an issue months ago.

Why is no one from TurboTax informing the community on these forums. The customers are having to investigate and inform others of the current situations.  Whether It's the CRA  or TurboTax  problem is irrelevant when it comes to customer support. 

This is the notice I now get before I try to file.

Alert:
If you see one of the following error codes, it's due to a CRA issue affecting all tax software in Canada. We're working with the CRA to get this resolved. Please come back after April 14 to file. Error codes: 2508, 2515, 45555, 90228, 90308, 95031, 95033, 95034, 95365 or 99915.

@ka777 We were attempting to resolve this error in collaboration with CRA. We hope to have this resolved by or on April 14th, and our development team is working on it. For our customers' awareness, we have placed a banner in the TurboTax filing section. Thank you for your patience.