diff --git a/rust/automerge/src/automerge.rs b/rust/automerge/src/automerge.rs
index bd1930e8..0dd82253 100644
--- a/rust/automerge/src/automerge.rs
+++ b/rust/automerge/src/automerge.rs
@@ -792,11 +792,6 @@ impl Automerge {
         bytes
     }
 
-    /// Mark the document as saved
-    pub fn mark_saved(&mut self) {
-        self.saved = self.get_heads();
-    }
-
     /// Save the changes since the last call to [Self::save`]
     ///
     /// The output of this will not be a compressed document format, but a series of individual
diff --git a/rust/automerge/src/change.rs b/rust/automerge/src/change.rs
index 3595e353..be467a84 100644
--- a/rust/automerge/src/change.rs
+++ b/rust/automerge/src/change.rs
@@ -112,17 +112,6 @@ impl Change {
         self.stored.iter_ops()
     }
 
-    pub fn difference(&self) -> (u32, u32) {
-        self.iter_ops()
-            .map(|op| match op.action {
-                1 => (1, 0),
-                3 => (0, 1),
-                _ => (0, 0),
-            })
-            .reduce(|acc, x| (acc.0 + x.0, acc.1 + x.1))
-            .unwrap_or_default()
-    }
-
     pub fn extra_bytes(&self) -> &[u8] {
         self.stored.extra_bytes()
     }