https://www.thaivisa.com/forum/topic/10 ... from-2019/
The part significant to most of us is in the third portion of the immigration announcement. Here is a copy of that portion of the announcement, pertaining to the retirement visa:

I have moved the other two retirement visa topics off the Announcements and now they reside among the standard topics in case you wish to refer to them or add posts to them.
My own plan remains the same. When the time comes to renew my retirement visa I will bring the documents specified in the announcement above, but I will also bring along proof of 800,000 baht in a Thai bank account for three or more months - just in case.
I believe immigration's interest is mainly to be certain, via evidence, foreign retirees in Thailand who say they have the means to support themselves financially really do have the means to support themselves financially.
If there are issues and/or complications in your own case, I suggest going to immigration, explain your situation, and see what they tell you - and do so well before your visa is due for renewal.
Meanwhile, I think for most of us - problem solved for retirement visa renewals and also first-time applicants, but don't forget - you must have a Thai bank account.