diff --git a/plans/hs-conformance-scoreboard.md b/plans/hs-conformance-scoreboard.md
index 3aeee022..e081b61b 100644
--- a/plans/hs-conformance-scoreboard.md
+++ b/plans/hs-conformance-scoreboard.md
@@ -4,7 +4,7 @@ Live tally for `plans/hs-conformance-to-100.md`. Update after every cluster comm
 
 ```
 Baseline:   1213/1496 (81.1%)
-Merged:     1302/1496 (87.0%)   delta +89
+Merged:     1303/1496 (87.1%)   delta +90
 Worktree:   all landed
 Target:     1496/1496 (100.0%)
 Remaining:  ~194 tests (clusters 17/29(partial)/31 blocked; 33/34 partial)
diff --git a/plans/hs-conformance-to-100.md b/plans/hs-conformance-to-100.md
index 891d6b16..2e078de9 100644
--- a/plans/hs-conformance-to-100.md
+++ b/plans/hs-conformance-to-100.md
@@ -177,6 +177,9 @@ Many tests are `SKIP (untranslated)` because `tests/playwright/generate-sx-tests
 
 (Reverse chronological — newest at top.)
 
+### 2026-04-25 — Bucket F: in-expression filter semantics (+1)
+- **67a5f137** — `HS: in-expression filter semantics (+1 test)`. `1 in [1, 2, 3]` was returning boolean `true` instead of the filtered list `(list 1)`. Root cause: `in?` compiled to `hs-contains?` which returns boolean for scalar items. Fix: (a) `runtime.sx` adds `hs-in?` returning filtered list for all cases, plus `hs-in-bool?` which wraps with `(not (hs-falsy? ...))` for boolean contexts; (b) `compiler.sx` changes `in?` clause to emit `(hs-in? collection item)` and adds new `in-bool?` clause emitting `(hs-in-bool? collection item)`; (c) `parser.sx` changes `is in` and `am in` comparison forms to produce `in-bool?` so those stay boolean. Suite hs-upstream-expressions/in: 8/9 → 9/9. Smoke 0-195: 173/195 unchanged.
+
 ### 2026-04-25 — cluster 22 window global fn fallback (+1)
 - **d31565d5** — `HS cluster 22: simplify win-call emit + def→window + init-blocks test (+1)`. Two-part change building on 337c8265 (host-call-fn FFI + hs-win-call runtime). (a) `compiler.sx` removes the guard wrapper from bare-call and method-call `hs-win-call` emit paths — direct `(hs-win-call name (list args))` is sufficient since hs-win-call returns nil for unknown names; `def` compilation now also emits `(host-set! (host-global "window") name fn)` so every HS-defined function is reachable via window lookup. (b) `generate-sx-tests.py` fixes a quoting bug: `\"here\"` was being embedded as three SX nodes (`""` + symbol + `""`) instead of a single escaped-quote string; fixed with `\\\"` escaping. Hand-rolled deftest for `can refer to function in init blocks` now passes. Suite hs-upstream-core/regressions: 13/16 → 14/16. Smoke 0-195: 172/195 → 173/195.