RMD waiver in 2020

I inherited an IRA from my father in early 2020 and it falls under the 10 year rule.  He was already taking RMDs before he passed away.  The IRS waived the RMD requirement for 2020 and I didn't make an RMD that year.  Does the RMD waiver in 2020 expand my withdrawal window from 10 years to 11 years?  Do I have until 12/31/31 to drain the account?