diff --git a/CONTEXT.md b/CONTEXT.md
index 673815f..950f629 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -163,21 +163,19 @@ In dev, the host serves the original `.ts` sources at `/Interop/...` for source-
 
 Recent commits (newest first):
 
-- `docs: archive play-state icon normalization; update DeepDrftPublic.Client CLAUDE.md`
-- `Consolidate play/pause icon logic into PlaybackIcons mapper and PlayStateIcon component`
-- `Reflect real playback state on gallery cards and toggle pause/resume`
-- `WASM State Fixes`
-- `CMS Home autoredirect to /tracks`
-- `WaveformSeeker Improvements` / WaveformSeeker waves 1–3
-- (earlier: AudioPlayerBar responsive unification, CMS build-out, the two-app split, deployment infrastructure)
+- `docs: update CLAUDE.md files to reflect Range header seek, remove WavOffsetService references`
+- `chore: remove WavOffsetService and ?offset= seek path, superseded by Range header (Phase 4.1)`
+- `feat: replace ?offset= seek with HTTP Range streaming across API, proxy, and client`
+- `refactor: extract StreamNowButton component shared by hero and nav menu`
+- (earlier: WaveformSeeker improvements, play-state icon normalization, CMS build-out, the two-app split, deployment infrastructure)
 
 Observations:
 
 1. **The big structural moves have landed.** Since the last revision of this doc, three large initiatives shipped: the **two-app split** (public/CMS separation with `DeepDrftAPI` as the dual-database authority), the **browser CMS** replacing the CLI (auth via AuthBlocks, stealth-routed `/cms/*`, full add/list/edit/delete parity), and **CD infrastructure** (Gitea workflows + host installer + systemd/nginx templates). The substrate is no longer the frontier — the product and presentation layers are.
-2. **The recent arc is player UX polish.** The latest wave of work is the WaveformSeeker (loudness-profile seekbar), AudioPlayerBar responsive unification, and play-state icon normalization (a single `PlaybackIcons` resolver + `PlayStateIcon` component, gallery cards reflecting real playback state with pause/resume). Presentation iteration on a stable streaming core.
-3. **The "Track Gallery" is still the only real public content page.** `/tracks` is the working listening surface; `/` is the (reskinned) marketing home. Nav (in `Layout/Pages.cs`) is still essentially `Home` + `Track Gallery`. The CMS adds admin surfaces under `/cms` but those are not public.
-4. **The metadata/streaming surface is consolidated on `DeepDrftAPI`.** It exposes seven track endpoints (stream, vault write, upload, delete, paged list, single-metadata read, metadata update) plus waveform endpoints. `DeepDrftPublic` is a thin browser-facing proxy in front of it; the browser never reaches `DeepDrftAPI` or the databases directly.
-5. **In flight (working tree, not yet committed):** an **embeddable iframe player** (`EmbedLayout.razor`, `FramePlayer.razor`, a new `ITrackDataService` seam) — a chrome-free single-track play surface for embedding off-site. Partial and not yet compiling; see `PLAN.md` "In-flight — Embeddable iframe player" for the open questions.
+2. **Phase 4 streaming work is complete.** HTTP Range header seek (`Range: bytes=X-`) is now the sole seek mechanism; `WavOffsetService` and the `?offset=` path have been removed (Phase 4.1, merged 2026-06-09). `StreamDecoder.reinitializeForRangeContinuation` handles Range continuations by retaining the parsed WAV header. The streaming substrate is solid.
+3. **The embeddable iframe player has landed** (commit `c83b132`, 2026-06-07). The presentation layer now includes a chrome-free single-track embed surface for off-site use, completing the Phase 4 feature set.
+4. **The "Track Gallery" is still the only real public content page.** `/tracks` is the working listening surface; `/` is the (reskinned) marketing home. Nav (in `Layout/Pages.cs`) is still essentially `Home` + `Track Gallery`. The CMS adds admin surfaces under `/cms` but those are not public.
+5. **The metadata/streaming surface is consolidated on `DeepDrftAPI`.** It exposes seven track endpoints (stream, vault write, upload, delete, paged list, single-metadata read, metadata update) plus waveform endpoints. `DeepDrftPublic` is a thin browser-facing proxy in front of it; the browser never reaches `DeepDrftAPI` or the databases directly.
 
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