diff --git a/History.md b/History.md
index c2a6d80e2a..1d4bb3b575 100644
--- a/History.md
+++ b/History.md
@@ -5,6 +5,9 @@
 * `meteor-tool@2.4`
   - `meteor show` now reports if a package is deprecated
 
+* `mongo@1.13.0`
+  - Add `createIndex` as a collection function. This is a new name for `_ensureIndex` which MongoDB has deprecated and removed in MongoDB 5.0. Use of `_ensureIndex` will show a deprecation warning on development.
+
 #### Independent Releases
 
 * `minifier-js@2.6.1`
@@ -20,9 +23,6 @@
   - Modernized the code
   - Fixed a variable assignment bug in `dontBindEnvironment` function
   
-* `mongo@1.12.1`
-  - Add `_createIndex` as a collection function. This is a new name for `_ensureIndex` which MongoDB has deprecated and removed in MongoDB 5.0.
-  
 ## v2.3.2, 2021-07-13
 
 #### Meteor Version Release
diff --git a/packages/mongo/collection.js b/packages/mongo/collection.js
index 4781176da4..6ea7c3757c 100644
--- a/packages/mongo/collection.js
+++ b/packages/mongo/collection.js
@@ -671,14 +671,21 @@ Object.assign(Mongo.Collection.prototype, {
     var self = this;
     if (!self._collection._ensureIndex)
       throw new Error("Can only call _ensureIndex on server collections");
-    self._collection._ensureIndex(index, options);
+    if (self._collection.createIndex) {
+      import { Log } from 'logging';
+
+      Log.debug('_ensureIndex has been deprecated, please use the new `createIndex` instead')
+      self._collection.createIndex(index, options);
+    } else {
+      self._collection._ensureIndex(index, options);
+    }
   },
 
-  _createIndex(index, options) {
+  createIndex(index, options) {
     var self = this;
-    if (!self._collection._createIndex)
-      throw new Error("Can only call _createIndex on server collections");
-    self._collection._createIndex(index, options);
+    if (!self._collection.createIndex)
+      throw new Error("Can only call createIndex on server collections");
+    self._collection.createIndex(index, options);
   },
 
   _dropIndex(index) {
diff --git a/packages/mongo/mongo_driver.js b/packages/mongo/mongo_driver.js
index 720b96a580..7997ddec73 100644
--- a/packages/mongo/mongo_driver.js
+++ b/packages/mongo/mongo_driver.js
@@ -829,7 +829,7 @@ MongoConnection.prototype.findOne = function (collection_name, selector,
 
 // We'll actually design an index API later. For now, we just pass through to
 // Mongo's, but make it synchronous.
-MongoConnection.prototype._createIndex = function (collectionName, index,
+MongoConnection.prototype.createIndex = function (collectionName, index,
                                                    options) {
   var self = this;
 
@@ -841,7 +841,7 @@ MongoConnection.prototype._createIndex = function (collectionName, index,
   future.wait();
 };
 
-MongoConnection.prototype._ensureIndex = MongoConnection.prototype._createIndex;
+MongoConnection.prototype._ensureIndex = MongoConnection.prototype.createIndex;
 
 MongoConnection.prototype._dropIndex = function (collectionName, index) {
   var self = this;
diff --git a/packages/mongo/oplog_tests.js b/packages/mongo/oplog_tests.js
index cbe14baf9b..7789f54a9f 100644
--- a/packages/mongo/oplog_tests.js
+++ b/packages/mongo/oplog_tests.js
@@ -59,7 +59,7 @@ process.env.MONGO_OPLOG_URL && testAsyncMulti(
       var self = this;
       self.collectionName = Random.id();
       self.collection = new Mongo.Collection(self.collectionName);
-      self.collection._createIndex({species: 1});
+      self.collection.createIndex({species: 1});
 
       // Fill collection with lots of irrelevant objects (red cats) and some
       // relevant ones (blue dogs).
diff --git a/packages/mongo/package.js b/packages/mongo/package.js
index 3522c4d669..f1a2820370 100644
--- a/packages/mongo/package.js
+++ b/packages/mongo/package.js
@@ -9,7 +9,7 @@
 
 Package.describe({
   summary: "Adaptor for using MongoDB and Minimongo over DDP",
-  version: '1.12.0'
+  version: '1.12.0-beta240.2'
 });
 
 Npm.depends({
@@ -35,6 +35,7 @@ Package.onUse(function (api) {
     'check',
     'ecmascript',
     'mongo-dev-server',
+    'logging'
   ]);
 
   // Make weak use of Decimal type on client
diff --git a/packages/mongo/remote_collection_driver.js b/packages/mongo/remote_collection_driver.js
index 1ecbf54146..97379a43a1 100644
--- a/packages/mongo/remote_collection_driver.js
+++ b/packages/mongo/remote_collection_driver.js
@@ -9,7 +9,7 @@ Object.assign(MongoInternals.RemoteCollectionDriver.prototype, {
     var self = this;
     var ret = {};
     ['find', 'findOne', 'insert', 'update', 'upsert',
-      'remove', '_ensureIndex', '_createIndex', '_dropIndex', '_createCappedCollection',
+      'remove', '_ensureIndex', 'createIndex', '_dropIndex', '_createCappedCollection',
       'dropCollection', 'rawCollection'].forEach(
       function (m) {
         ret[m] = _.bind(self.mongo[m], self.mongo, name);