diff --git a/src/index.js b/src/index.js
index c402b968..eb0f5fa0 100644
--- a/src/index.js
+++ b/src/index.js
@@ -118,13 +118,11 @@ export {
   getPathTo,
   Attributions,
   filterIdMap,
-  undoContentIds,
-  createContentIds,
-  createContentMap,
-  createContentIdsFromContentMap,
-  createContentMapFromContentIds
+  undoContentIds
 } from './internals.js'
 
+export * from './utils/meta.js'
+
 const glo = /** @type {any} */ (typeof globalThis !== 'undefined'
   ? globalThis
   : typeof window !== 'undefined'
diff --git a/src/utils/IdSet.js b/src/utils/IdSet.js
index 39930cfe..8b42c6b5 100644
--- a/src/utils/IdSet.js
+++ b/src/utils/IdSet.js
@@ -443,6 +443,8 @@ export const _insertIntoIdSet = (dest, src) => {
 export const insertIntoIdSet = _insertIntoIdSet
 
 /**
+ * @todo rename to excludeIdSet | excludeIdMap
+ *
  * Remove all ranges from `exclude` from `ds`. The result is a fresh IdSet containing all ranges from `idSet` that are not
  * in `exclude`.
  *
diff --git a/src/utils/UndoManager.js b/src/utils/UndoManager.js
index d2aa15b8..85a18d04 100644
--- a/src/utils/UndoManager.js
+++ b/src/utils/UndoManager.js
@@ -393,7 +393,7 @@ export class UndoManager extends ObservableV2 {
 
 /**
  * @experimental
- * 
+ *
  * This is not guaranteed to work on documents with gc enabled!
  *
  * @param {Doc} ydoc
diff --git a/src/utils/meta.js b/src/utils/meta.js
index 28e4e954..420183c0 100644
--- a/src/utils/meta.js
+++ b/src/utils/meta.js
@@ -28,6 +28,28 @@ export const createContentIdsFromContentMap = contentMap => createContentIds(
   idmap.createIdSetFromIdMap(contentMap.deletes)
 )
 
+/**
+ * @param {import('./Doc.js').Doc} ydoc
+ */
+export const createContentIdsFromDoc = ydoc => createContentIds(
+  idset.createInsertSetFromStructStore(ydoc.store, false),
+  idset.createDeleteSetFromStructStore(ydoc.store)
+)
+
+/**
+ * @param {import('./Doc.js').Doc} ydocPrev
+ * @param {import('./Doc.js').Doc} ydocNext
+ */
+export const createContentIdsFromDocDiff = (ydocPrev, ydocNext) =>
+  excludeContentIds(createContentIdsFromDoc(ydocPrev), createContentIdsFromDoc(ydocNext))
+
+/**
+ * @param {ContentIds} content
+ * @param {ContentIds} excludeContent
+ */
+export const excludeContentIds = (content, excludeContent) =>
+  createContentIds(idset.diffIdSet(content.inserts, excludeContent.inserts), idset.diffIdSet(content.deletes, excludeContent.deletes))
+
 /**
  * @param {import('./IdMap.js').IdMap<any>} inserts
  * @param {import('./IdMap.js').IdMap<any>} deletes
diff --git a/tests/y-text.tests.js b/tests/y-text.tests.js
index 10df582b..2f1e09aa 100644
--- a/tests/y-text.tests.js
+++ b/tests/y-text.tests.js
@@ -2164,7 +2164,7 @@ const qChanges = [
  */
 const checkResult = result => {
   for (let i = 1; i < result.testObjects.length; i++) {
-    t.info('length of text = ' + result.users[i - 1].get('text').length)
+    // t.info('length of text = ' + result.users[i - 1].get('text').length)
     const p1 = result.users[i - 1].get('text').toDeltaDeep().children
     const p2 = result.users[i].get('text').toDeltaDeep().children
     t.compare(p1, p2)