About garbage collection, there is some research done in that direction: Logoot [0] is a collaborative text editor that doesn't depend on tombstones. [0]: http

About garbage collection, there is some research done in that direction: Logoot [0] is a collaborative text editor that doesn't depend on tombstones. [0]: https://hal.archives-ouvertes.fr/inria-00336191/ https://hal.archives-ouvertes.fr/inria-00336191/