Starting August 15th, Bethesda Library (7400 Arlington Rd, Bethesda, MD) will be open on Sundays from 1-4pm. Not long ago I wrote about parking no longer being free, so this is an improvement.
It is part of a larger initiative to keep some libraries open on Sunday year round. Bethesda, Germantown, Marilyn J. Praisner, Rockville Memorial, Silver Spring and Wheaton will now have year round Sunday hours. I seem to recall that all library used to be closed on Sundays in the Summer but open on Sundays during the school year. I didn't see any mention of opening the rest of the libraries in the system on Sundays this fall so it isn't as much of an improvement as it seems.