ATTENTION: RUSSIAN PASSPORT HOLDERZ
The promotion the thai government had where Russian passport holders received a 90 day entry stamp which started back on Nov 1, 2023 runs out April 30, 2024.
That means IF you want a final 90 day entry you need to exit/re-enter on or before Apr 30th. :)
It was just announced that effective May 1 until July 31, Russian passport holders will now get 60 day entry stamp.
TLDR : Answer Summary
The promotion allowing Russian passport holders to receive a 90-day entry stamp into Thailand, which started on November 1, 2023, will end on April 30, 2024. After this date, from May 1 to July 31, Russian passport holders will be issued a 60-day entry stamp. There is a question regarding the possibility of extending the 60-day stamp, as the previous 90-day stamp could not be extended.