diff --git a/externs/olx.js b/externs/olx.js
index 13083d582a..bb7b5d9075 100644
--- a/externs/olx.js
+++ b/externs/olx.js
@@ -4639,7 +4639,7 @@ olx.source.TileWMSOptions.prototype.urls;
  *     logo: (string|olx.LogoOptions|undefined),
  *     projection: ol.proj.ProjectionLike,
  *     state: (ol.source.State|string|undefined)}}
- * @api
+ * @api stable
  */
 olx.source.VectorOptions;
 
diff --git a/src/ol/source/vectorsource.js b/src/ol/source/vectorsource.js
index e2852fb7ac..aa2723274a 100644
--- a/src/ol/source/vectorsource.js
+++ b/src/ol/source/vectorsource.js
@@ -25,13 +25,13 @@ ol.source.VectorEventType = {
   /**
    * Triggered when a feature is added to the source.
    * @event ol.source.VectorEvent#addfeature
-   * @api
+   * @api stable
    */
   ADDFEATURE: 'addfeature',
   /**
    * Triggered when a feature is removed from the source.
    * @event ol.source.VectorEvent#removefeature
-   * @api
+   * @api stable
    */
   REMOVEFEATURE: 'removefeature'
 };
@@ -46,7 +46,7 @@ ol.source.VectorEventType = {
  * @extends {ol.source.Source}
  * @fires ol.source.VectorEvent
  * @param {olx.source.VectorOptions=} opt_options Vector source options.
- * @api
+ * @api stable
  */
 ol.source.Vector = function(opt_options) {
 
@@ -102,7 +102,7 @@ goog.inherits(ol.source.Vector, ol.source.Source);
 
 /**
  * @param {ol.Feature} feature Feature.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.addFeature = function(feature) {
   this.addFeatureInternal(feature);
@@ -148,7 +148,7 @@ ol.source.Vector.prototype.addFeatureInternal = function(feature) {
 
 /**
  * @param {Array.<ol.Feature>} features Features.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.addFeatures = function(features) {
   this.addFeaturesInternal(features);
@@ -172,7 +172,7 @@ ol.source.Vector.prototype.addFeaturesInternal = function(features) {
 
 /**
  * Remove all features.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.clear = function() {
   this.rBush_.forEach(this.removeFeatureInternal, this);
@@ -190,7 +190,7 @@ ol.source.Vector.prototype.clear = function() {
  * @param {T=} opt_this The object to use as `this` in `f`.
  * @return {S|undefined}
  * @template T,S
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.forEachFeature = function(f, opt_this) {
   return this.rBush_.forEach(f, opt_this);
@@ -249,7 +249,7 @@ ol.source.Vector.prototype.forEachFeatureInExtentAtResolution =
 
 /**
  * @return {Array.<ol.Feature>} Features.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.getFeatures = function() {
   var features = this.rBush_.getAll();
@@ -264,7 +264,7 @@ ol.source.Vector.prototype.getFeatures = function() {
 /**
  * @param {ol.Coordinate} coordinate Coordinate.
  * @return {Array.<ol.Feature>} Features.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.getFeaturesAtCoordinate = function(coordinate) {
   var features = [];
@@ -287,7 +287,7 @@ ol.source.Vector.prototype.getFeaturesInExtent = function(extent) {
 /**
  * @param {ol.Coordinate} coordinate Coordinate.
  * @return {ol.Feature} Closest feature.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.getClosestFeatureToCoordinate =
     function(coordinate) {
@@ -334,7 +334,7 @@ ol.source.Vector.prototype.getClosestFeatureToCoordinate =
 /**
  * Get the extent of the features currently in the source.
  * @return {ol.Extent} Extent.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.getExtent = function() {
   return this.rBush_.getExtent();
@@ -348,7 +348,7 @@ ol.source.Vector.prototype.getExtent = function() {
  *
  * @param {string|number} id Feature identifier.
  * @return {ol.Feature} The feature (or `null` if not found).
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.getFeatureById = function(id) {
   var feature = this.idIndex_[id.toString()];
@@ -426,7 +426,7 @@ ol.source.Vector.prototype.loadFeatures = goog.nullFunction;
 
 /**
  * @param {ol.Feature} feature Feature.
- * @api
+ * @api stable
  */
 ol.source.Vector.prototype.removeFeature = function(feature) {
   var featureKey = goog.getUid(feature).toString();
@@ -501,7 +501,7 @@ ol.source.VectorEvent = function(type, opt_feature) {
   /**
    * The feature being added or removed.
    * @type {ol.Feature|undefined}
-   * @api
+   * @api stable
    */
   this.feature = opt_feature;