diff --git a/lib/charms/grafana_agent/v0/cos_agent.py b/lib/charms/grafana_agent/v0/cos_agent.py
index b18c271..d3617b3 100644
--- a/lib/charms/grafana_agent/v0/cos_agent.py
+++ b/lib/charms/grafana_agent/v0/cos_agent.py
@@ -254,7 +254,7 @@ class _MetricsEndpointDict(TypedDict):
 
 LIBID = "dc15fa84cef84ce58155fb84f6c6213a"
 LIBAPI = 0
-LIBPATCH = 20
+LIBPATCH = 21
 
 PYDEPS = ["cosl >= 0.0.50", "pydantic"]
 
@@ -472,7 +472,7 @@ def dump(self, databag: Optional[MutableMapping] = None, clear: bool = True):
             return databag
 
 
-class CosAgentProviderUnitData(DatabagModel):
+class CosAgentProviderUnitData(DatabagModel):  # type: ignore
     """Unit databag model for `cos-agent` relation."""
 
     # The following entries are the same for all units of the same principal.
@@ -499,7 +499,7 @@ class CosAgentProviderUnitData(DatabagModel):
     KEY: ClassVar[str] = "config"
 
 
-class CosAgentPeersUnitData(DatabagModel):
+class CosAgentPeersUnitData(DatabagModel):  # type: ignore
     """Unit databag model for `peers` cos-agent machine charm peer relation."""
 
     # We need the principal unit name and relation metadata to be able to render identifiers
@@ -598,7 +598,7 @@ class Receiver(pydantic.BaseModel):
     )
 
 
-class CosAgentRequirerUnitData(DatabagModel):  # noqa: D101
+class CosAgentRequirerUnitData(DatabagModel):  # type: ignore
     """Application databag model for the COS-agent requirer."""
 
     receivers: List[Receiver] = pydantic.Field(
diff --git a/lib/charms/operator_libs_linux/v2/snap.py b/lib/charms/operator_libs_linux/v2/snap.py
index 4370eb1..a706c16 100644
--- a/lib/charms/operator_libs_linux/v2/snap.py
+++ b/lib/charms/operator_libs_linux/v2/snap.py
@@ -109,7 +109,7 @@
 
 # Increment this PATCH version before using `charmcraft publish-lib` or reset
 # to 0 if you are raising the major API version
-LIBPATCH = 13
+LIBPATCH = 14
 
 PYDEPS = ["opentelemetry-api"]
 
@@ -149,6 +149,7 @@ class _SnapDict(TypedDict, total=True):
     name: str
     channel: str
     revision: str
+    version: str
     confinement: str
     apps: NotRequired[list[dict[str, JSONType]] | None]
 
@@ -309,6 +310,7 @@ class Snap:
       - channel: "stable", "candidate", "beta", and "edge" are common
       - revision: a string representing the snap's revision
       - confinement: "classic", "strict", or "devmode"
+      - version: a string representing the snap's version, if set by the snap author
     """
 
     def __init__(
@@ -320,6 +322,8 @@ def __init__(
         confinement: str,
         apps: list[dict[str, JSONType]] | None = None,
         cohort: str | None = None,
+        *,
+        version: str | None = None,
     ) -> None:
         self._name = name
         self._state = state
@@ -328,6 +332,7 @@ def __init__(
         self._confinement = confinement
         self._cohort = cohort or ""
         self._apps = apps or []
+        self._version = version
         self._snap_client = SnapClient()
 
     def __eq__(self, other: object) -> bool:
@@ -783,6 +788,11 @@ def held(self) -> bool:
         info = self._snap("info")
         return "hold:" in info
 
+    @property
+    def version(self) -> str | None:
+        """Returns the version for a snap."""
+        return self._version
+
 
 class _UnixSocketConnection(http.client.HTTPConnection):
     """Implementation of HTTPConnection that connects to a named Unix socket."""
@@ -1048,6 +1058,7 @@ def _load_installed_snaps(self) -> None:
                 revision=i["revision"],
                 confinement=i["confinement"],
                 apps=i.get("apps"),
+                version=i.get("version"),
             )
             self._snap_map[snap.name] = snap
 
@@ -1067,6 +1078,7 @@ def _load_info(self, name: str) -> Snap:
             revision=info["revision"],
             confinement=info["confinement"],
             apps=None,
+            version=info.get("version"),
         )