Passwords
A new password now needs at least 10 characters. This applies when you create an account, reset your password or change it, and each form tells you before you submit. An existing password still signs you in; the new minimum applies the next time you set one.
Sign-in
The sign-in and sign-up pages no longer show a "Sign in with Google" button. Google sign-in is not available, so the button could not work. Sign in with your email address and password.
Trials
Each person gets one 3-day trial, whichever workspace they start it in. If you have already used yours, the billing page says so and shows the plans without a trial, so checkout matches what the page offered. Online checkout is still not open.