Future of CephFS discusses improvements to Ceph's distributed file system (CephFS) including dynamic subtree partitioning to balance metadata load, replication of hot metadata, and migration of metadata between servers. It describes how CephFS stores metadata in RADOS objects to improve locality and reduce seeks compared to legacy systems. Snapshots can be taken of subdirectories without special tools. Multiple client implementations include kernel, FUSE, and libraries. The path forward includes more testing, automation, and integration with other projects.