The only issue identified on the CRA website link is a change to the Capital Gains Inclusion Rate and we have no Capital Gains in our returns.
The link to TurboTax locked forms page has been updated 6 hours ago but the links to see which forms are locked do not work in my Safari browser.
In any case I previously checked and non of the forms listed at that time would affect us. Our returns are very simple with no investments or employment income, only basis pension income. If forms are locked TurboTax should be able to show me which one(s).
As others have said, this appears to be a software glitch, but TurboTax is not acknowledging the problem or providing a firm update schedule. When I first opened the software about a week ago there was an update, but nothing since then (TurboTax desktop checks automatically when it is launched). The error message refers to the software being updated by the end of January but we are long past that.
