Are you traveling to/from CDG over the next 2 weekends?

Just a quick notification for anyone who may not be aware, but they are doing engineering work on the RER line leading to CDG Airport for the next two weekends. That means no trains are running to the airport, and you need to take the RER to Mitry-Claye and then a bus from there to Terminal 3 or find an alternate means of transport. We got caught by surprise with this one last Sunday. Although the Mitry-Claye and the airport stops are well signed with information about the engineering works, the other RER stops in Paris don't have clearly posted notifications.