I see on your page the REC train did not run between Versailles and Paris from July 2022 - August 20, 2022, I am coming In August 2023 do you know if that was just last year or is it shut down again this year.
Thank you for your question. I've updated the Paris Versailles RER C train page with updated service interruption information for the summer of 2023.
There will be no RER C service between Paris and Versailles on July 15 & July 16 2023, but otherwise normal service for the RER C west of Paris towards Chateau de Versailles.
Within central Paris RER C train line will be disrupted for a long period between July 15 and August 26, 2023 (inclusive). No RER C trains will run between Javel (central Paris west) and Austerlitz (central Paris east) stations between July 15 - Aug 26, 2023.
If you're beginning your Paris-Versailles train trip on RER C, ensure you start your trip west of Javel station as there is no RER C train service between Javel & Austerlitz July 15 through to August 26, 2023.