diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32988f1..71d6de1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2.0.1
+* Fix backward compatibility for client resource/resources
+
 ## 2.0.0
 * Add typehints for all methods
 * Add pluggable data model #126
diff --git a/fhirpy/__init__.py b/fhirpy/__init__.py
index 7221683..56ba443 100644
--- a/fhirpy/__init__.py
+++ b/fhirpy/__init__.py
@@ -1,7 +1,7 @@
 from .lib import AsyncFHIRClient, SyncFHIRClient
 
 __title__ = "fhir-py"
-__version__ = "2.0.0"
+__version__ = "2.0.1"
 __author__ = "beda.software"
 __license__ = "None"
 __copyright__ = "Copyright 2024 beda.software"
diff --git a/fhirpy/base/client.py b/fhirpy/base/client.py
index 2bc53f3..db2f74e 100644
--- a/fhirpy/base/client.py
+++ b/fhirpy/base/client.py
@@ -1,3 +1,4 @@
+import warnings
 from abc import ABC, abstractmethod
 from typing import Any, TypeVar, Union
 
@@ -14,6 +15,16 @@ class AbstractClient(ABC):
     authorization: Union[str, None]
     extra_headers: Union[dict, None]
 
+    # Deprecated
+    @property  # pragma: no cover
+    def searchset_class(self):
+        raise NotImplementedError()
+
+    # Deprecated
+    @property  # pragma: no cover
+    def resource_class(self):
+        raise NotImplementedError()
+
     def __init__(
         self,
         url: str,
@@ -34,13 +45,27 @@ def __repr__(self):
     def reference(self, resource_type=None, id=None, reference=None, **kwargs):  # noqa: A002
         pass
 
-    @abstractmethod
-    def resource(self, resource_type, **kwargs):
-        pass
-
-    @abstractmethod
-    def resources(self, resource_type):
-        pass
+    def resource(self, resource_type, **kwargs):  # pragma: no cover
+        warnings.warn(
+            "class var `resource_class` is deprecated "
+            "and will be removed in future versions. "
+            "Please redefine `resource` method of client",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+
+        return self.resource_class(self, resource_type=resource_type, **kwargs)
+
+    def resources(self, resource_type):  # pragma: no cover
+        warnings.warn(
+            "class var `searchset_class` is deprecated "
+            "and will be removed in future versions. "
+            "Please redefine `resource` method of client",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+
+        return self.searchset_class(self, resource_type=resource_type)
 
     @abstractmethod
     def execute(