diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45f0026..13aaef3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # smplr
 
+## 0.16.x
+
+#### DrumMachine sample groups
+
+DrumMachines group different samples with same prefix under the same group. For example `tom-1.ogg` and `tom-2.ogg` forms the `tom` group:
+
+```js
+const drums = new DrumMachine(context, { instrument: "TR-808" });
+drum.sampleNames; // => ['kick-1', 'kick-2', 'snare-1', 'snare-2', ...]
+drum.sampleGroups; // => ['kick', 'snare']
+drum.getGroupVariations('kick') => // => ['kick-1', 'kick-2']
+```
+
+⚠️ This is a breaking change: before `sampleNames` returns `sampleGroups`. Now `sampleNames` return all sample names.
+
+Also, before 0.16.0 `getGroupVariations` was `getVariations`. Now `getVariations` is deprecated.
+
 ## 0.15.x
 
 #### Disable scheduler with `disableScheduler` option
diff --git a/package.json b/package.json
index e69321c..d4cc849 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "smplr",
-  "version": "0.15.1",
+  "version": "0.16.0",
   "homepage": "https://github.com/danigb/smplr#readme",
   "description": "A Sampled collection of instruments",
   "main": "dist/index.js",