diff --git a/README.md b/README.md
index 5b82027..a94c687 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,10 @@ freely modulating time and pitch independently. Try extreme slow-downs (0.01x) f
 - Includes equal power cross-fade looping with separate attack and release sample portions.
 - Supports pitch bend and fine-tuning.
 
+#### This fork's additions
+- Ping-pong loop playback mode.
+- UI control for crossfade length (the underlying support already existed in the code, but the control was missing from the UI in the original version).
+
 #### Extras
 - Disable antialiasing for a gritty LoFi effect.
 - Record samples directly into the sampler.