What
Long-running sessions now receive automatic notifications when the date changes at midnight.
Details
- Claude is informed of the new date without user intervention
- Helps maintain accurate context for date-sensitive operations
- The message instructs Claude not to mention the date change explicitly to users
Evidence
Date change handler (search for "The date has changed. Today's date is now")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.