ArcGIS Web App Builder Deprecation Schedule

[ScottHansen__MDP_]

Our agency is working to update and transition applications from Web App Builder to either Instant App's or Experience Builder. According to Esri’s official deprecation notice (Esri Support Article😞

• You will no longer be able to create new Web AppBuilder apps after the Q1 2026 ArcGIS Online update.
  

• Existing apps will stop being accessible by the Q2 2027 update.

What is the expected date of the Q1 2026 ArcGIS Online update? If a date is not available, what about a month?  Also, although it says you cannot create new Web App Builder apps after that date, can they still be updated through Q2 2027?  Clarification in this area is greatly appreciated.