diff --git a/CHANGES.txt b/CHANGES.txt
index 3366f7d4..41a56fff 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1 +1,2 @@
 Oct 16 2019 v2.0.0: Complete change of IndicoIo API through the Indico IPA platform. For IPA Platform API use only.
+Mar 13 2026 Unreleased: Support matching release tags that include dotted PEP 440 suffixes (for example `7.9.0.post1`) in dynamic versioning.
diff --git a/pyproject.toml b/pyproject.toml
index 0cbfed9a..5d487430 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ source = "uv-dynamic-versioning"
 [tool.uv-dynamic-versioning]
 fallback-version = "0.0.0"
 vcs = "git"
-pattern = "^(?P<base>\\d+(?:\\.\\d+)*)(?:-(?P<stage>[a-zA-Z]+)(?P<revision>\\d+)?)?"
+pattern = "^(?P<base>\\d+(?:\\.\\d+)*)(?:(?:[-\\.])(?P<stage>[a-zA-Z]+)(?P<revision>\\d+)?)?$"
 
 [tool.uv]
 cache-keys = [{ file = "pyproject.toml" }, { git = { commit = true, tags = true } }]
diff --git a/tests/unit/test_release_version_pattern.py b/tests/unit/test_release_version_pattern.py
new file mode 100644
index 00000000..1ec35ca6
--- /dev/null
+++ b/tests/unit/test_release_version_pattern.py
@@ -0,0 +1,31 @@
+import re
+import tomllib
+from pathlib import Path
+
+
+def _load_release_pattern() -> str:
+    pyproject_path = Path(__file__).resolve().parents[2] / "pyproject.toml"
+    with pyproject_path.open("rb") as f:
+        pyproject = tomllib.load(f)
+    return pyproject["tool"]["uv-dynamic-versioning"]["pattern"]
+
+
+def test_release_pattern_matches_standard_tag() -> None:
+    pattern = re.compile(_load_release_pattern())
+    match = pattern.match("7.9.0")
+    assert match is not None
+    assert match.groupdict() == {"base": "7.9.0", "stage": None, "revision": None}
+
+
+def test_release_pattern_matches_hyphen_prerelease_tag() -> None:
+    pattern = re.compile(_load_release_pattern())
+    match = pattern.match("7.9.0-rc1")
+    assert match is not None
+    assert match.groupdict() == {"base": "7.9.0", "stage": "rc", "revision": "1"}
+
+
+def test_release_pattern_matches_post_release_tag() -> None:
+    pattern = re.compile(_load_release_pattern())
+    match = pattern.match("7.9.0.post1")
+    assert match is not None
+    assert match.groupdict() == {"base": "7.9.0", "stage": "post", "revision": "1"}
diff --git a/tests/unit/test_storage_compat.py b/tests/unit/test_storage_compat.py
new file mode 100644
index 00000000..807f62dd
--- /dev/null
+++ b/tests/unit/test_storage_compat.py
@@ -0,0 +1,181 @@
+"""
+Storage-service compatibility unit tests.
+
+Validates that Python SDK storage query classes remain compatible with the
+response shapes produced by storage-service (the Rainbow replacement).  These
+tests mock at the HTTP level and require no running service.
+
+Covered flows:
+  * UploadDocument: POST /storage/files/store, LegacyUploadResponseItem shape
+  * CreateStorageURLs: indico-file:///storage<path> URI construction
+  * RetrieveStorageObject: indico-file:// prefix stripping and GET path
+"""
+
+import io
+import json
+
+import pytest
+
+from indico.client import IndicoClient
+from indico.client.request import HTTPMethod
+from indico.config import IndicoConfig
+from indico.queries.storage import (
+    CreateStorageURLs,
+    RetrieveStorageObject,
+    UploadDocument,
+)
+
+# ---------------------------------------------------------------------------
+# Response shape produced by storage-service /files/store endpoint
+# (mirrors LegacyUploadResponseItem from storage_service/routes/blob_routes.py)
+# ---------------------------------------------------------------------------
+STORAGE_SERVICE_UPLOAD_RESPONSE = [
+    {
+        "path": "/uploads/42/abc-uuid",
+        "name": "document.pdf",
+        "size": 12345,
+        "upload_type": "user",
+    }
+]
+
+
+# ---------------------------------------------------------------------------
+# Fixtures
+# ---------------------------------------------------------------------------
+
+
+@pytest.fixture
+def cfg():
+    return IndicoConfig(protocol="mock", host="mock")
+
+
+@pytest.fixture
+def mock_request(requests_mock, cfg):
+    """Register a URL on requests_mock using the test config base URL."""
+
+    def _register(method, path, **kwargs):
+        url = f"{cfg.protocol}://{cfg.host}{path}"
+        getattr(requests_mock, method)(
+            url, **kwargs, headers={"Content-Type": "application/json"}
+        )
+
+    return _register
+
+
+@pytest.fixture
+def client(mock_request, cfg):
+    mock_request("post", "/auth/users/refresh_token", json={"auth_token": "tok"})
+    return IndicoClient(config=cfg)
+
+
+# ---------------------------------------------------------------------------
+# UploadDocument — request shape and response parsing
+# ---------------------------------------------------------------------------
+
+
+def test_upload_document_posts_to_storage_files_store(mock_request, client):
+    """UploadDocument sends POST to /storage/files/store."""
+    captured = []
+
+    def capture(request, context):
+        captured.append(request.path)
+        context.status_code = 200
+        context.headers["Content-Type"] = "application/json"
+        import json as _json
+
+        return _json.dumps(STORAGE_SERVICE_UPLOAD_RESPONSE)
+
+    mock_request("post", "/storage/files/store", text=capture)
+    client.call(UploadDocument(streams={"test.pdf": io.BytesIO(b"data")}))
+    assert captured == ["/storage/files/store"]
+
+
+def test_upload_document_processes_path_name_upload_type(mock_request, client):
+    """UploadDocument.process_response reads path/name/upload_type from storage-service."""
+    mock_request("post", "/storage/files/store", json=STORAGE_SERVICE_UPLOAD_RESPONSE)
+    result = client.call(UploadDocument(streams={"test.pdf": io.BytesIO(b"data")}))
+
+    assert len(result) == 1
+    assert result[0]["filename"] == "document.pdf"
+    meta = json.loads(result[0]["filemeta"])
+    assert meta["path"] == "/uploads/42/abc-uuid"
+    assert meta["name"] == "document.pdf"
+    assert meta["uploadType"] == "user"
+
+
+def test_upload_document_handles_multiple_files(mock_request, client):
+    """Multiple files in one upload are each parsed correctly."""
+    multi_response = [
+        {
+            "path": "/uploads/42/uuid-1",
+            "name": "a.pdf",
+            "size": 100,
+            "upload_type": "user",
+        },
+        {
+            "path": "/uploads/42/uuid-2",
+            "name": "b.pdf",
+            "size": 200,
+            "upload_type": "user",
+        },
+    ]
+    mock_request("post", "/storage/files/store", json=multi_response)
+    result = client.call(
+        UploadDocument(
+            streams={
+                "a.pdf": io.BytesIO(b"aaa"),
+                "b.pdf": io.BytesIO(b"bbb"),
+            }
+        )
+    )
+    assert len(result) == 2
+    assert result[0]["filename"] == "a.pdf"
+    assert result[1]["filename"] == "b.pdf"
+
+
+# ---------------------------------------------------------------------------
+# CreateStorageURLs — indico-file URI construction
+# ---------------------------------------------------------------------------
+
+
+def test_create_storage_urls_builds_indico_file_uris(mock_request, client):
+    """CreateStorageURLs returns indico-file:///storage<path> from storage-service response."""
+    mock_request("post", "/storage/files/store", json=STORAGE_SERVICE_UPLOAD_RESPONSE)
+    result = client.call(CreateStorageURLs(streams={"test.pdf": io.BytesIO(b"data")}))
+    assert result == ["indico-file:///storage/uploads/42/abc-uuid"]
+
+
+def test_create_storage_urls_round_trips_through_retrieve(mock_request, client):
+    """A URI from CreateStorageURLs can be fed directly into RetrieveStorageObject."""
+    uri = "indico-file:///storage/uploads/42/abc-uuid"
+    req = RetrieveStorageObject(uri)
+    assert req.path == "/storage/uploads/42/abc-uuid"
+    assert req.method == HTTPMethod.GET
+
+
+# ---------------------------------------------------------------------------
+# RetrieveStorageObject — path construction
+# ---------------------------------------------------------------------------
+
+
+def test_retrieve_storage_object_strips_indico_file_scheme():
+    """indico-file:// prefix is stripped; remaining path becomes the GET path."""
+    req = RetrieveStorageObject("indico-file:///storage/submissions/1/2/result.json")
+    assert req.path == "/storage/submissions/1/2/result.json"
+    assert req.method == HTTPMethod.GET
+
+
+def test_retrieve_storage_object_accepts_dict_with_url_key():
+    """Accepts a dict with 'url' key (as returned by GraphQL result objects)."""
+    req = RetrieveStorageObject({"url": "indico-file:///storage/extractions/99.json"})
+    assert req.path == "/storage/extractions/99.json"
+
+
+def test_retrieve_storage_object_fetches_content(mock_request, client):
+    """GET /storage/<path> is issued and the response body is returned."""
+    payload = {"status": "complete", "results": [{"text": "hello"}]}
+    mock_request("get", "/storage/submissions/1/2/result.json", json=payload)
+    result = client.call(
+        RetrieveStorageObject("indico-file:///storage/submissions/1/2/result.json")
+    )
+    assert result == payload