On the museum's website:
"On the occasion of the Holy Father’s greeting to employees of the Holy See, on Saturday 24 May 2025, the Vatican Museums will open to the public at 01.00 p.m., while the Castel Gandolfo Museum Complex will remain closed for the entire day.
Furthermore, on the occasion of the Jubilee of the Holy See, on Monday 9 June 2025, the Vatican Museums and the Castel Gandolfo Museum Complex will be closed to the public."
Thought I'd post in case people with bookings had not been given the heads up or had reason to check back to the website.