Dear colleagues, We have just received an updated maintenance window for the work initially planned on 25 July. The web server that distributes RIS files (data.ris.ripe.net), as well as ftp.ripe.net and data-store.ripe.net, will be down for maintenance on 4 September from 11:00-12:00 UTC. BGP sessions with RIS collectors will not be affected, and no data will be lost. However, downloads from https://data.ris.ripe.net will not be available. Other RIS services are not affected. Start: Thursday, 4 September 2025 11:00 UTC End: Thursday, 4 September 2025, 12:00 UTC Affected: * data.ris.ripe.net * ftp.ripe.net * data-store.ripe.net We expect service to be unavailable for the full maintenance window. Our apologies for the late notification. Kind regards, Ties de Kock RIPE NCC