# QNE Shadow Session Transition Note V1

Date: 2026-06-10

`qne-node-v00544` and `qne-scene-renderer-skia-v00524` are the transition baseline for browser shadows before the light shadow-session abstraction.

- `qne-node-v00544.zip` and `qne-scene-renderer-skia-v00524.zip` are the last direct route-owned browser-shadow state versions.
- `qne-node-v00545` and `qne-scene-renderer-skia-v00525` begin the light `QNEShadowSession` boundary.
- Current persistence remains file-backed under `browser-shadows`.
- Future high-scale shadows should move hot state into an in-memory active session manager with debounced snapshot persistence, TTL cleanup, frame caching, and per-session backpressure.
