Fix: update docs about snd

CHANGELOG.md

@@ -2,6 +2,34 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.1.2]
+
+### Forth Language
+- Single-letter envelope aliases: `a` (attack), `d` (decay), `s` (sustain), `r` (release).
+- `sound` alias changed from `s` to `snd` (frees `s` for sustain).
+- New `partials` word: set number of active harmonics for additive oscillator.
+- Velocity parameter normalized to 0–1 float range (was 0–127 integer).
+
+### UI / UX
+- **Sample Explorer as dedicated page**: the side panel is now a full page (Tab key), with keyboard navigation (j/k, search with `/`, preview with Enter), replacing the old collapsible side panel.
+- **Pulsing armed-changes bar** on patterns page: staged play/stop/mute/solo changes shown in a launch bar with animated feedback ("c to launch").
+- Pulsing highlight on banks and patterns with staged changes.
+- Sample browser shows child count on collapsed folders and uses `+`/`-` tree icons.
+- File browser modal: shows audio file counts per directory, colored path segments, and hint bar.
+- Audio devices refreshed automatically when entering the Engine page.
+- Bank prelude field added to data model (foundation for bank-level Forth scripts).
+
+### Engine
+- Audio timing switched from float seconds to integer tick-based scheduling, improving timing precision.
+- Stream error handling refined: only `DeviceNotAvailable` and `StreamInvalidated` trigger device-lost recovery (non-fatal errors no longer restart the stream).
+- Step traces use `Arc` for cheaper cloning between threads.
+
+### Packaging
+- **Windows: NSIS installer** replaces cargo-wix MSI. Includes optional PATH registration, Start Menu shortcut, and proper Add/Remove Programs entry with uninstaller.
+- Improved Windows cross-compilation from Unix hosts (MinGW toolchain detection).
+- CI build timeouts increased to 60 minutes across all platforms.
+- Website download matrix updated.
+
 ## [0.1.1]
 
 ### Forth Language