diff --git a/agents/webby/work/queue-198/REVIEW-build-r3.md b/agents/webby/work/queue-198/REVIEW-build-r3.md
index 29275b3da..fd859a52c 100644
--- a/agents/webby/work/queue-198/REVIEW-build-r3.md
+++ b/agents/webby/work/queue-198/REVIEW-build-r3.md
@@ -82,3 +82,18 @@ clause saying an activate to a pre-198 copy has no board either.
 
 I check B1-B3, re-read stack-release.sh `console_for_target` and both print sites, and confirm that the
 M12 and M13 expectations match sage-2837's reason text.
+
+## Addendum: 2a758a5ba (Bushroot, 17:15Z, parent 435b7b559)
+
+Read with git, nothing run. Four files: stack-release.sh, stack-release.test.mjs, the webui README and
+BUILD.md.
+
+- B1 met. `console_for_target` drops `--board` for every op, and `parses_flag` now only picks the reason. A
+  pre-198 target says the 7331 board is retired and this Console runs without it. A post-198 target says the
+  board runs in the Console. The README paragraph covers activate and rollback, so N3 is met too.
+- B2 open. Both M13 tests (activate and rollback) still run `--plan` only. sage-2834 asked for an argv
+  assertion on the install. Add one real run, for example the rollback, asserting exit 0, the drop line in
+  the steps, and no `--board` in the installed Console unit.
+- B3 open. BUILD.md's table still has no `reply()` join mutant, and board.test.mjs is unchanged.
+
+Verdict stands: CHANGES, B2 and B3.
diff --git a/docs/SESSIONS.md b/docs/SESSIONS.md
index 87c4579cd..b4f9972d7 100644
--- a/docs/SESSIONS.md
+++ b/docs/SESSIONS.md
@@ -1487,3 +1487,4 @@ are never rewritten or removed; corrections are new entries.
 2026-10-22T16:50Z | Webby (Opus 5.5, reviewer seat) | row 198 build early read 4b036e632 (webby-0150) | CHANGES B1-B5: rebase (cli/serve conflicts), stack-release --board guard unbuilt, designed tests missing, keep stale-pid refusal, port test passes for the wrong reason; local
 2026-10-22T17:10Z | Webby (Opus 5.5, reviewer seat) | Case 2 Q226 rework review, design af3349f00 and briefs 965dec0ee (gosalyn-0161, mos-1309, mos-1320) | CHANGES R1-R3 (too-long cited reply dropped, unreadable file lifts requireCitation, fetch fallback to library-gitea after a revoke), N1-N5, webby-0151
 2026-10-22T17:15Z | Webby (Opus 5.5, reviewer seat) | row 198 build r3 read, b42d9cf36 and 435b7b559 (webby-0152) | CHANGES B1-B3: drop --board on every op (sage-2837), M13 checks a real install, reply() join case; N1-N3
+2026-10-22T17:16Z | Webby (Opus 5.5, reviewer seat) | row 198 r3 addendum on 2a758a5ba (webby-0153) | B1 and N3 met; B2 (real install run for M13) and B3 (reply() join case) still open