diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d0b19f..427f654 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 - 3-operator FM synthesis words: `fm2` (operator 2 depth), `fm2h` (operator 2 harmonic ratio), `fmalgo` (algorithm: 0=cascade, 1=parallel, 2=branch), `fmfb` (feedback amount). Extends the existing 2-OP FM engine to a full 3-OP architecture with configurable routing and operator feedback.
+- Background head-preload for sample libraries. At startup, a background thread decodes the first 4096 frames (~93ms) of every sample into RAM. Short samples (most percussion/drums) are fully captured and play instantly on first trigger. Eliminates first-hit misses for live performance.
 
 ### Fixed
 - Code editor now scrolls vertically to keep the cursor visible. Previously, lines beyond the visible area were clipped and the cursor could move off-screen.