diff --git a/agent/BACKLOG.md b/agent/BACKLOG.md
index 9659b3d..a176b3a 100644
--- a/agent/BACKLOG.md
+++ b/agent/BACKLOG.md
@@ -128,6 +128,26 @@ v1+ polish, not a v1 blocker.
 
 ### 146. `[watch]` hypridle hangs instead of exiting when its compositor vanishes
 
+**Re-measured 2026-07-20 (dev box; user journal is persistent back to 2026-05-01,
+so this is the full window, not a fragment).** The linger fix landed between 17:25
+and 20:13 on 2026-07-16: the last zombie-shaped disconnect is the known one
+(17:25:39, PID 1698 — logout→greeter with **no** following `Stopped hypridle`), and
+**every** `Disconnected from pollfd id 1` since is a clean teardown bracketed by both
+a logind `Session N logged out` and a systemd `Stopped hypridle` within ≤11s
+(07-16 20:13:04, 07-17 17:04:38, 07-18 13:35:25, 07-19 16:46:49). **Genuine zombies
+post-fix: 0.** The live daemon is healthy too — PID 1707: `active`, `NRestarts=0`,
+`ExecMainPID`==pid, `ss` Recv-Q 0 on its D-Bus socket (reading, not the 48 KB-unread
+wedge), `WCHAN futex_do_wait`, logged activity <10 min before inspection. **Why this
+stays open a little longer, not closed today:** all four post-fix disconnects were
+*deliberate* logouts — no Hyprland *crash* (the zombie's actual trigger; the nearby
+coredumps were xdg-desktop-portal/swww/swayosd during teardown, not the compositor)
+has occurred since the fix, so the crash path is confirmed by argument (a crash ends
+the logind session too → no-linger manager teardown reaps hypridle) but not yet by an
+observed crash, and ~4 days is under the "few weeks" bar. **Close condition:** if
+genuine zombies stay 0 by ~2026-08-10 (≈3 weeks post-fix), close unbuilt; one wedged
+process (`ps` alive + `ss` Recv-Q high + `NRestarts=0` while `active`) reopens it as
+real work. Everything below is prior context, unchanged.
+
 **Rewritten 2026-07-16, hours after filing: the premise was disproven and almost
 nothing survives.** As filed it said hypridle "dies silently ~2×/week — 19 times
 in 11 days", with Jul 14 as the clean example ("`CRITICAL` at 13:08:17, then