changelog: mark v3 (uqv6) DEPLOYED

CHANGELOG.md

@@ -13,7 +13,7 @@ Newest release on top.
 
 ---
 
-## v3 — uq-v6 — *PLANNED (not yet deployed)*
+## v3 — uq-v6 — *DEPLOYED 2026-06-26*
 
 - All 18 foundation models rebuilt with the **uqv6** UQ feature (schema 6:
   L2-normalized basis direction `(B/‖B‖)@R` + log-norm density channels).
@@ -34,10 +34,13 @@ Newest release on top.
   `bin/upload_v3_{uqv6,kokkos}_hf.sh` written + dry-run-validated; schema-6-aware kk
   `pair_style grace` C++ build **shipped** (kk-vs-TF validated 18/18 OK for E/F/stress
   fp64 GPU + gamma fp64 GPU / fp32 CPU).
-- Remaining before deploy: run `upload_v3_*_hf.sh --push` (public push) + commit
-  `foundation_models.py`. No blockers left.
+- Deployed (2026-06-26): pushed to HF `AMS-ICAMS-RUB/grace-foundation-models` —
+  models+checkpoints (72 archives, 10.2 GB) at commit `4aff666` (tags `model-v3-uq-v6`,
+  `checkpoint-v3-uq-v6`); kokkos (18 npz, 3.28 GB) at commit `75456fa` (tag `kk-v3-uq-v6`);
+  CHANGELOG.md uploaded. Client (`foundation_models.py`/`grace_models.py`) committed `ef000a2`
+  already resolves these tags. No blockers left.
 
-## v2 — *currently deployed*
+## v2 — *superseded by v3 (2026-06-26)*
 
 - Previous generation, live on the legacy HF tags `kk` (model archives, kokkos
   bundled) and `uq-v1` (original 8 OMAT-UQ checkpoints). UQ = uqv2/uqv3-era.