Next steps: nodes released, D-139 execution list replaced, LP draft written ...

(1) TEST NODES RELEASED. t7ymp6 / fg6gxm -> Ready / owner=None, released
individually and read back. Nothing stranded. G19 was run live before the window
closed, which was the whole reason for holding them.

(2) D-139 GAINS A CORRECTION NOTE REPLACING ITS EXECUTION LIST. Neither ruling is
touched. The original list is preserved verbatim inside the note rather than
silently overwritten -- same reason the struck RFC 6724 rationale was kept: a
later reader must be able to see what was wrong or they will re-derive it.

  SILENT FAILURE (why this could not wait): dc-node-v6-carve.py assigns v6 "on
  every plane WHERE IT ALREADY CARRIES IPv4", keys the subnet off the same MAAS
  vlan as that v4 link, derives the host part from the v4 octet, and its loop body
  is `if not v4: continue`. Run after v4 removal it carves FOUR FEWER PLANES PER
  NODE AND EXITS CLEAN -- and the original list's "remove v4 LAST" wording
  actively invited that ordering.
  UNSATISFIABLE: "remove v4 LAST, after each is proven" -- per-plane conversion is
  atomic, so no such state exists.
  UNSAFE STEP FUSION: apex CREATE and RETIRE in one step, with 52 dependent
  ip-addresses (the v6 VIP legs) inside the retiring ULA /64s.

  Replacement is 7 steps: CREATE-only apex push; MAAS GUA carve ALONGSIDE the ULA;
  node statics re-carved WHILE v4 IS STILL PRESENT; Octavia SAN reissue +
  lib-net.sh; lb-mgmt carve; re-home the 52 VIPs THEN retire; and v4 removal as a
  SEPARATE experimental step scoped to storage + replication TOGETHER per "B plus
  C" (together because ceph-osd's prefer-ipv6 sets ms_bind_ipv4=False globally).
  Step 7's prerequisite -- network-get on a v6-only bound space -- is stated unmet.

(3) LP DRAFT WRITTEN, NOT FILED: docs/audit/lp-draft-20260801-ceph-osd-ipv6-
static.md. The "C" half of the ruling. A COMMENT on the EXISTING LP #2061836, not
a new bug -- the ceph-mon task is already Fix Committed and only ceph-osd remains
New. Every code claim quoted from the downloaded rev-953 artifact. Claude does not
post to Launchpad; the operator files it (lp-draft-20260721 precedent).

Two things written INTO the draft's operator notes rather than left implicit: do
NOT cite LP #1590598 (Fix Released, a different defect -- the inverted-citation
class); and this bug does NOT block us locally, since setting ceph-public-network
/ ceph-cluster-network to the v6 CIDRs bypasses the buggy call. Overstating our
dependence on an upstream fix would be a bad-faith way to raise its priority.

OWNED: first push attempt went red on L1 -- I used em-dashes in the changelog and
this repo is ASCII-only. Caught by lint before commit, fixed, re-run 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf