diff --git a/TODO.md b/TODO.md
index d1b0c2a..cab1f9d 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1511,6 +1511,26 @@ What is on the screen and where. Split out of Other 2026-08-22; the rules are el
 
 Doesn't fit the above.
 
+- [ ] **THE 0.4.9 PLAYTEST LINE IS BEHIND ON A RULES RULING, and that was checked rather than
+      assumed.** Recorded 2026-08-23, when Jesse asked whether any of v0.7.0 needed porting to the
+      `playtest` branch. Almost none of it does — that line has no lobby and no server, and the
+      `undo()` config fix is inert there because its `GameConfig` carries no victory dials, so
+      `configWith` only ever varies the house rules the save already restores.
+
+      **But one v0.5.0 ruling is a CODE difference the testers do not have.** §A.4, the Local's
+      coach: `main`'s `apply.ts` reads `if (dropRules.coachStaysOnStationTrack && cut.some(coach) &&
+      !atOffice)`, and `playtest`'s is the same line **without `&& !atOffice`** — so on that build a
+      coach still may not be set out at the Office. The other two questions the 0.4.9 README calls
+      open are documentation-only there (Poling is already at 0 copies; Heavy Grade behaves
+      identically and even deals the Mainline deck without replacement, so the correction applies
+      word for word).
+
+      **Jesse's call, 2026-08-23: do not port it now.** A settled rules change is not a playtest bug
+      fix, and pushing one into the build people are mid-playtest on would invalidate the feedback
+      that build exists to collect. Recorded so the divergence is a decision rather than a surprise —
+      and so the 0.4.9 README is not "corrected" to match `main`'s wording, which would then describe
+      behaviour that build does not have.
+
 - [ ] **Documentation generated from the implementation, not written alongside it.** Raised by Jesse
       2026-08-22, immediately after Gitea#7 changed the coach counts on four train cards and the
       answer to "where do we keep track of that?" turned out to be **five places of three different