diff --git a/breakout-rooms/leanConsensus/pq-interop/README.md b/breakout-rooms/leanConsensus/pq-interop/README.md
index b00aae5..33cd529 100644
--- a/breakout-rooms/leanConsensus/pq-interop/README.md
+++ b/breakout-rooms/leanConsensus/pq-interop/README.md
@@ -10,11 +10,15 @@ By fostering rapid feedback between researchers and developers, the devnet accel
 
 ## PQ Interop Devnet Plans
 
-| devnet #                        | Main objectives   | Status      | Date completed  |
-| ------------------------------- | ----------------- | ----------- | --------------- |
-| [pq-devnet-0](./pq-devnet-0.md) | - Minimal consensus<br /> - No PQ signatures | Completed   | October 6, 2025 |
-| [pq-devnet-1](./pq-devnet-1.md) | - PQ signature signining & verification<br />- Naive aggregation (signature concatenation) | In progress | TBD (estimated: Q4 2025) |
-| [pq-devnet-2](./pq-devnet-2.md) | - PQ signature aggregation<br />- No recursive aggregation | Not started | TBD (estimated: Q1 2026) |
+| devnet #                        | Main objectives   | Status      | Checklist | Date completed  |
+| ------------------------------- | ----------------- | ----------- | --------- | --------------- |
+| [pq-devnet-0](./pq-devnet-0.md) | - Minimal consensus<br /> - No PQ signatures | Completed   | - | October 6, 2025 |
+| [pq-devnet-1](./pq-devnet-1.md) | - PQ signature signining & verification<br />- Naive aggregation (signature concatenation) | In progress | - | TBD (estimated: Q4 2025) |
+| [pq-devnet-2](./pq-devnet-2.md) | - PQ signature aggregation<br />- No recursive aggregation | Started | [Checklist](./pq-devnet-2-checklist.md) | TBD (estimated: Q1 2026) |
+| [pq-devnet-3](./pq-devnet-3.md) | - Decouple aggregation from block production<br />- Aggregated signature propagation | Not started | [Checklist](./pq-devnet-3-checklist.md) | TBD (estimated: Q1 2026) |
+| pq-devnet-4 | - Multiple aggregation subnets<br />- Dynamic validator set | Not started | [Checklist](./pq-devnet-4-checklist.md) | TBD |
+
+See also: [Decision Log](./decision-log.md) for cross-devnet deferrals and references | [Readiness Checklists (HackMD)](https://hackmd.io/@bomanaps/rJjEPTjBWx)
 
 ## Breakout Room Meetings
 
diff --git a/breakout-rooms/leanConsensus/pq-interop/decision-log.md b/breakout-rooms/leanConsensus/pq-interop/decision-log.md
new file mode 100644
index 0000000..ac42de1
--- /dev/null
+++ b/breakout-rooms/leanConsensus/pq-interop/decision-log.md
@@ -0,0 +1,26 @@
+# PQ Interop Decision Log
+
+Records when features are deferred or moved between DevNets.
+
+## Deferrals & Moves
+
+| Date | Item | From | To | Reason |
+| ---- | ---- | ---- | -- | ------ |
+| 2026-01-14 | Dynamic validator set | DevNet 3 | DevNet 4 | Adds complexity while devnets aren't stable; defer until checkpoint sync improves stability |
+| 2026-01-14 | Multiple aggregation subnets | DevNet 3 | DevNet 4 | Derisk complexity; focus on single subnet first |
+
+## References
+
+### Repositories
+
+- [leanSpec](https://github.com/leanEthereum/leanSpec)
+- [leanMetrics](https://github.com/leanEthereum/leanMetrics)
+- [leanSig](https://github.com/leanEthereum/leanSig)
+- [leanMultisig](https://github.com/leanEthereum/leanMultisig)
+- [lean-quickstart](https://github.com/blockblaz/lean-quickstart)
+- [pm repo](https://github.com/leanEthereum/pm/tree/main/breakout-rooms/leanConsensus/pq-interop)
+
+### DevNet Specs
+
+- [pq-devnet-2.md](https://github.com/leanEthereum/pm/blob/main/breakout-rooms/leanConsensus/pq-interop/pq-devnet-2.md)
+- [pq-devnet-3.md](https://github.com/leanEthereum/pm/blob/main/breakout-rooms/leanConsensus/pq-interop/pq-devnet-3.md)
diff --git a/breakout-rooms/leanConsensus/pq-interop/pq-devnet-2-checklist.md b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-2-checklist.md
new file mode 100644
index 0000000..b431e07
--- /dev/null
+++ b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-2-checklist.md
@@ -0,0 +1,77 @@
+# pq-devnet-2: Readiness Checklist
+
+> **Target Date:** 2026-01-28
+> **High Level Plan:** [pq-devnet-2.md](./pq-devnet-2.md)
+> **Source of Truth:** [HackMD](https://hackmd.io/@bomanaps/rJjEPTjBWx)
+
+## Specification Readiness
+
+- [x] leanSpec: All pq-devnet-2 PRs merged [Devnet 2 Commit Hash](https://github.com/leanEthereum/leanSpec/tree/4edcf7bc9271e6a70ded8aff17710d68beac4266)
+- [ ] leanSig: Target commit validated and compatible [Devnet 2 Commit Hash](https://github.com/leanEthereum/leanSig/tree/73bedc26ed961b110df7ac2e234dc11361a4bf25)
+- [ ] [leanMultisig](https://github.com/leanEthereum/leanMultisig/tree/e4474138487eeb1ed7c2e1013674fe80ac9f3165): Compatible with leanSig (**BLOCKER**)
+- [x] [Justification compression PR merged](https://github.com/leanEthereum/leanSpec/pull/273)
+- [x] [Checkpoint sync spec finalized](https://github.com/leanEthereum/leanSpec/pull/279)
+- [x] [Zero hash in justification roots refactor](https://github.com/leanEthereum/leanSpec/pull/305)
+- [ ] Block-by-root syncing spec finalized
+- [ ] Lean VM aggregation integrated
+- [x] Lean Metrics: [DevNet 2 branch](https://github.com/leanEthereum/leanMetrics/tree/3b32b300cca5ed7a7a2b3f142273fae9dbc171bf)
+
+## Metrics Readiness
+
+- [PR #18](https://github.com/leanEthereum/leanMetrics/pull/18)
+- [PR #16](https://github.com/leanEthereum/leanMetrics/pull/16)
+- [PR #13](https://github.com/leanEthereum/leanMetrics/pull/13)
+
+## Bug Fixes Required (from DevNet 1)
+
+- [ ] Node syncing (graceful recovery without full restart)
+- [ ] Genesis block checkpoint alignment
+- [ ] Memory leak fixes
+- [ ] Peer connection fixes
+- [ ] SSZ implementation alignment
+
+## Client Implementation Readiness
+
+*Status as of Jan 28, 2026*
+
+| Client     | Status   | Docker Tag | Notes |
+| ---------- | -------- | ---------- | ----- |
+| EthLambda  | ✅ Ready | `ghcr.io/lambdaclass/ethlambda:latest` | Gossip layer done, STF added |
+| Grandine   | ✅ Ready | `sifrai/lean:latest` | Open-sourced, DevNet-1 interop ongoing |
+| Lantern    | ✅ Ready | `piertwo/lantern:latest` | Full DevNet-2 support, all tests passing |
+| Lighthouse | ✅ Ready | `hopinheimer/lighthouse:latest` | - |
+| Qlean      | ✅ Ready | `qdrvm/qlean-mini:latest` | OOM fix PR open, GossipSub predicates WIP |
+| Ream       | ✅ Ready | `ghcr.io/reamlabs/ream:latest` | Checkpoint sync API pending, DB pruning done |
+| Zeam       | ✅ Ready | `blockblaz/zeam:latest` | Block-by-root syncing working |
+| Gean       | 🆕 New   | TBD | Go + Lean based client |
+
+## Infrastructure Readiness
+
+- [x] lean-quickstart updated
+- [ ] Grafana dashboards ready
+- [x] All client Docker images submitted to [readiness issue](https://github.com/blockblaz/lean-quickstart/issues/87)
+- [ ] Docker images include [commit hash metadata](https://github.com/blockblaz/lean-quickstart/issues/91)
+- [x] Default Docker image configuration ([Issue #94](https://github.com/blockblaz/lean-quickstart/issues/94))
+
+## Go/No-Go Criteria
+
+- [ ] leanMultisig <-> leanSig compatibility resolved
+- [ ] All clients pass spec tests
+- [ ] Network runs 1+ hour without finality loss
+- [ ] Node can rejoin after disconnect
+
+## May Defer to DevNet 3
+
+- [ ] Committee-based aggregation ([PR #282](https://github.com/leanEthereum/leanSpec/pull/282))
+- [ ] Multiple aggregation subnets
+- [ ] Recursive aggregation
+
+## Open Items
+
+| Item | Type | Relevance |
+| ---- | ---- | --------- |
+| leanMultisig compatibility | Blocker | leanSig compatibility |
+| [PR #299](https://github.com/leanEthereum/leanSpec/pull/299) | Merged | Interop testing |
+| [Issue #87](https://github.com/blockblaz/lean-quickstart/issues/87) | Open | Client Docker images submission |
+| [Issue #91](https://github.com/blockblaz/lean-quickstart/issues/91) | Open | Docker commit hash metadata |
+| [Issue #94](https://github.com/blockblaz/lean-quickstart/issues/94) | Closed | Default Docker image config |
diff --git a/breakout-rooms/leanConsensus/pq-interop/pq-devnet-3-checklist.md b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-3-checklist.md
new file mode 100644
index 0000000..e21b3fd
--- /dev/null
+++ b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-3-checklist.md
@@ -0,0 +1,77 @@
+# pq-devnet-3: Readiness Checklist
+
+> **Target Date:** 2026-02-25
+> **High Level Plan:** [pq-devnet-3.md](./pq-devnet-3.md)
+> **Source of Truth:** [HackMD](https://hackmd.io/@bomanaps/rJjEPTjBWx)
+
+## Specification Readiness
+
+- [ ] High-level plan [PR #56](https://github.com/leanEthereum/pm/pull/56) merged
+- [ ] leanSpec: Committee aggregation [PR #282](https://github.com/leanEthereum/leanSpec/pull/282) merged
+- [ ] compute_subnet_id() function [PR #58](https://github.com/leanEthereum/pm/pull/58) merged
+- [ ] Aggregator role fully specified
+- [ ] New gossipsub topics defined (`attestation_{subnet_id}`, `aggregated_attestation`)
+- [ ] GossipSub propagation predicates for topic message acceptance/rejection
+
+## PR #282 Remaining Work
+
+- [ ] Handle aggregators not observing sufficient signatures by interval 2
+- [ ] Add gossipsub propagation predicates
+- [ ] Rebase to latest main
+
+## Client Implementation Readiness
+
+| Client     | Aggregator Role | Subnet Topics | Interop |
+| ---------- | --------------- | ------------- | ------- |
+| Lantern    | ⏳              | ⏳            | ⏳      |
+| Ream       | ⏳              | ⏳            | ⏳      |
+| Zeam       | ⏳              | ⏳            | ⏳      |
+| Qlean      | ⏳              | ⏳            | ⏳      |
+| Lighthouse | ⏳              | ⏳            | ⏳      |
+| Grandine   | ⏳              | ⏳            | ⏳      |
+| EthLambda  | ⏳              | ⏳            | ⏳      |
+| Gean       | ⏳              | ⏳            | ⏳      |
+
+## New Functionality
+
+### Aggregator Role
+
+- [ ] Collect attestations from subnet topic
+- [ ] Aggregate signatures (no recursive aggregation)
+- [ ] Propagate to `aggregated_attestation` topic
+
+### Proposer Updates
+
+- [ ] Listen to `aggregated_attestation` topic
+- [ ] Include aggregations in block
+
+## Infrastructure Readiness
+
+- [ ] validator-config.yaml with `is_aggregator` field
+- [ ] lean-quickstart updated for subnet topology
+- [ ] Grafana dashboards for subnets
+
+## Go/No-Go Criteria
+
+- [ ] PR #282 merged
+- [ ] All clients implement aggregator role
+- [ ] Aggregated signatures included in blocks
+- [ ] No regression in finality
+
+## Out of Scope
+
+- Multiple aggregation subnets → DevNet 4
+- Recursive aggregation → Future
+- Random validator-to-subnet assignment → Future
+- Dynamic validator set (deposit/exit) → DevNet 4+
+
+## Deferred from DevNet 2
+
+- [ ] (To be filled based on DevNet 2 outcome)
+
+## Open Items
+
+| Item | Type | Relevance |
+| ---- | ---- | --------- |
+| [PR #282](https://github.com/leanEthereum/leanSpec/pull/282) | WIP | Committee aggregation |
+| [PR #56](https://github.com/leanEthereum/pm/pull/56), [PR #58](https://github.com/leanEthereum/pm/pull/58) | Merged | High-level DevNet 3 plan |
diff --git a/breakout-rooms/leanConsensus/pq-interop/pq-devnet-4-checklist.md b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-4-checklist.md
new file mode 100644
index 0000000..ee9862d
--- /dev/null
+++ b/breakout-rooms/leanConsensus/pq-interop/pq-devnet-4-checklist.md
@@ -0,0 +1,44 @@
+# pq-devnet-4: Readiness Checklist
+
+> **Target Date:** TBD
+> **High Level Plan:** TBD (no plan file yet)
+> **Source of Truth:** [HackMD](https://hackmd.io/@bomanaps/rJjEPTjBWx)
+
+## Specification Readiness
+
+- [ ] Multiple aggregation subnets spec
+- [ ] Dynamic validator set spec ([PR from Zepturo](https://github.com/leanEthereum/leanSpec))
+- [ ] Random validator-to-subnet assignment
+
+## Planned Features (from earlier deferrals)
+
+- [ ] Multiple aggregation subnets (from DevNet 3)
+- [ ] Dynamic validator set - deposit/exit (from DevNet 3)
+
+## May Include (pending research)
+
+- [ ] Recursive aggregation (if performance targets met)
+- [ ] Full Beacon spec parity items (DAS, execution, etc.)
+
+## Client Implementation Readiness
+
+| Client     | Multi-subnet | Dynamic Validators | Interop |
+| ---------- | ------------ | ------------------ | ------- |
+| Lantern    | ⏳           | ⏳                 | ⏳      |
+| Ream       | ⏳           | ⏳                 | ⏳      |
+| Zeam       | ⏳           | ⏳                 | ⏳      |
+| Qlean      | ⏳           | ⏳                 | ⏳      |
+| Lighthouse | ⏳           | ⏳                 | ⏳      |
+| Grandine   | ⏳           | ⏳                 | ⏳      |
+| EthLambda  | ⏳           | ⏳                 | ⏳      |
+| Gean       | ⏳           | ⏳                 | ⏳      |
+
+## Deferred from DevNet 3
+
+- [ ] (To be filled based on DevNet 3 outcome)
+
+## Open Items
+
+| Item | Type | Relevance |
+| ---- | ---- | --------- |
+| Dynamic validator set | Deferred | Deposit/exit interface |