diff --git a/.planning/PROJECT.md b/.planning/PROJECT.md
index 2706956..1f5405b 100644
--- a/.planning/PROJECT.md
+++ b/.planning/PROJECT.md
@@ -16,6 +16,8 @@ Tech stack: gopacket/gopacket v1.5.0, packetcap/go-pcap (pure Go capture), sjzar
 
 All 16 v1 requirements validated. Full pipeline working: capture -> classify -> aggregate -> synthesize -> MP3.
 
+**Phase 5 complete 2026-03-26:** Waveform types (sine, square, sawtooth, triangle) with bandlimited synthesis added. OscillatorBank decoupled from global config — NewBank now accepts injected config maps with dynamic gain scaling.
+
 ## Requirements
 
 ### Validated (v1.0)