diff --git a/policyengine_uk_data/tests/test_release_manifest.py b/policyengine_uk_data/tests/test_release_manifest.py
index 244c79095..e42e95dc8 100644
--- a/policyengine_uk_data/tests/test_release_manifest.py
+++ b/policyengine_uk_data/tests/test_release_manifest.py
@@ -1,11 +1,18 @@
 import hashlib
 from io import BytesIO
+from importlib import metadata
 from pathlib import Path
 from unittest.mock import MagicMock, patch
 
+import pytest
 from huggingface_hub import CommitOperationAdd
+from huggingface_hub.errors import EntryNotFoundError
 
-from policyengine_uk_data.utils.data_upload import upload_files_to_hf
+from policyengine_uk_data.utils.data_upload import (
+    _get_model_package_version,
+    load_release_manifest_from_hf,
+    upload_files_to_hf,
+)
 from policyengine_uk_data.utils.release_manifest import (
     RELEASE_MANIFEST_SCHEMA_VERSION,
     build_release_manifest,
@@ -81,6 +88,89 @@ def test_build_release_manifest_tracks_uk_release_artifacts(tmp_path):
     assert manifest["artifacts"]["local_authority_weights"]["kind"] == "weights"
 
 
+def test_build_release_manifest_refreshes_compatible_model_packages_for_draft_retry(
+    tmp_path,
+):
+    dataset_path = _write_file(
+        tmp_path / "enhanced_frs_2023_24.h5",
+        b"enhanced-frs",
+    )
+
+    manifest = build_release_manifest(
+        files_with_repo_paths=[(dataset_path, "enhanced_frs_2023_24.h5")],
+        version="1.40.4",
+        repo_id="policyengine/policyengine-uk-data-private",
+        model_package_version="9.99.9",
+        existing_manifest={
+            "schema_version": RELEASE_MANIFEST_SCHEMA_VERSION,
+            "data_package": {
+                "name": "policyengine-uk-data",
+                "version": "1.40.4",
+            },
+            "compatible_model_packages": [
+                {
+                    "name": "policyengine-uk",
+                    "specifier": "==1.0.0",
+                }
+            ],
+            "default_datasets": {},
+            "created_at": "2026-04-10T12:00:00Z",
+            "artifacts": {},
+        },
+    )
+
+    assert manifest["compatible_model_packages"] == [
+        {"name": "policyengine-uk", "specifier": "==9.99.9"}
+    ]
+
+
+def test_load_release_manifest_from_hf_raises_non_missing_download_errors():
+    with patch(
+        "policyengine_uk_data.utils.data_upload.hf_hub_download",
+        side_effect=RuntimeError("boom"),
+    ):
+        with pytest.raises(RuntimeError, match="boom"):
+            load_release_manifest_from_hf(version="1.40.4")
+
+
+def test_load_release_manifest_from_hf_continues_on_missing_entry(tmp_path):
+    manifest_path = tmp_path / "release_manifest.json"
+    manifest_path.write_text('{"data_package": {"version": "1.40.4"}}')
+
+    with patch(
+        "policyengine_uk_data.utils.data_upload.hf_hub_download",
+        side_effect=[
+            EntryNotFoundError("missing"),
+            str(manifest_path),
+        ],
+    ):
+        manifest = load_release_manifest_from_hf(version="1.40.4")
+
+    assert manifest["data_package"]["version"] == "1.40.4"
+
+
+def test_get_model_package_version_prefers_imported_checkout(tmp_path):
+    package_root = tmp_path / "policyengine_uk"
+    package_root.mkdir()
+    (package_root / "__init__.py").write_text("")
+    pyproject_path = tmp_path / "pyproject.toml"
+    pyproject_path.write_text(
+        '[project]\nname = "policyengine-uk"\nversion = "2.78.0"\n'
+    )
+    fake_spec = MagicMock(origin=str(package_root / "__init__.py"))
+
+    with (
+        patch(
+            "policyengine_uk_data.utils.data_upload.find_spec", return_value=fake_spec
+        ),
+        patch(
+            "policyengine_uk_data.utils.data_upload.metadata.version",
+            side_effect=metadata.PackageNotFoundError,
+        ),
+    ):
+        assert _get_model_package_version() == "2.78.0"
+
+
 def test_upload_files_to_hf_adds_uk_release_manifest_operations(tmp_path):
     dataset_path = _write_file(
         tmp_path / "enhanced_frs_2023_24.h5",
diff --git a/policyengine_uk_data/utils/data_upload.py b/policyengine_uk_data/utils/data_upload.py
index 67939f6b8..03040d518 100644
--- a/policyengine_uk_data/utils/data_upload.py
+++ b/policyengine_uk_data/utils/data_upload.py
@@ -1,14 +1,16 @@
 from io import BytesIO
 from typing import Dict, List, Optional, Tuple
 from huggingface_hub import HfApi, CommitOperationAdd, hf_hub_download
-from huggingface_hub.errors import RevisionNotFoundError
+from huggingface_hub.errors import EntryNotFoundError, RevisionNotFoundError
 from google.cloud import storage
 from pathlib import Path
 from importlib import metadata
+from importlib.util import find_spec
 import google.auth
 import json
 import logging
 import os
+import tomllib
 
 from policyengine_uk_data.utils.release_manifest import (
     build_release_manifest,
@@ -21,6 +23,20 @@
 def _get_model_package_version(
     package_name: str = "policyengine-uk",
 ) -> Optional[str]:
+    module_name = package_name.replace("-", "_")
+    spec = find_spec(module_name)
+    module_origin = getattr(spec, "origin", None) if spec is not None else None
+    if module_origin is not None:
+        package_root = Path(module_origin).resolve().parent
+        for parent in [package_root, *package_root.parents]:
+            pyproject_path = parent / "pyproject.toml"
+            if not pyproject_path.exists():
+                continue
+            with open(pyproject_path, "rb") as f:
+                pyproject = tomllib.load(f)
+            project = pyproject.get("project", {})
+            if project.get("name") == package_name and project.get("version"):
+                return project["version"]
     try:
         return metadata.version(package_name)
     except metadata.PackageNotFoundError:
@@ -87,7 +103,7 @@ def load_release_manifest_from_hf(
             )
         except RevisionNotFoundError:
             raise
-        except Exception:
+        except EntryNotFoundError:
             continue
 
         with open(manifest_path) as f: