diff --git a/README.rst b/README.rst
index 4bee724..bde5850 100644
--- a/README.rst
+++ b/README.rst
@@ -279,6 +279,14 @@ MIT
 Change Log
 ----------
 
+22.6.22
+~~~~~~~~~~
+
+* Don't crash when select / extend_select are None (#261)
+* Ignore lambda arguments for B020 (#259)
+* Fix missing space typos in B021, B022 error messages (#257)
+
+
 22.4.25
 ~~~~~~~~~~
 
diff --git a/bugbear.py b/bugbear.py
index 4201fbc..f1dcf9e 100644
--- a/bugbear.py
+++ b/bugbear.py
@@ -12,7 +12,7 @@
 import attr
 import pycodestyle
 
-__version__ = "22.4.25"
+__version__ = "22.6.22"
 
 LOG = logging.getLogger("flake8.bugbear")
 CONTEXTFUL_NODES = (
@@ -155,12 +155,13 @@ def should_warn(self, code):
             return True
 
         for i in range(2, len(code) + 1):
-            if code[:i] in self.options.select:
+            if self.options.select and code[:i] in self.options.select:
                 return True
 
             # flake8 >=4.0: Also check for codes in extend_select
             if (
                 hasattr(self.options, "extend_select")
+                and self.options.extend_select
                 and code[:i] in self.options.extend_select
             ):
                 return True
@@ -824,6 +825,11 @@ def visit_DictComp(self, node):
     def visit_comprehension(self, node):
         self.visit(node.iter)
 
+    def visit_Lambda(self, node):
+        self.visit(node.body)
+        for lambda_arg in node.args.args:
+            self.names.pop(lambda_arg.arg, None)
+
 
 error = namedtuple("error", "lineno col message type vars")
 Error = partial(partial, error, type=BugBearChecker, vars=())
@@ -1023,14 +1029,14 @@ def visit_comprehension(self, node):
 )
 B021 = Error(
     message=(
-        "B021 f-string used as docstring."
+        "B021 f-string used as docstring. "
         "This will be interpreted by python as a joined string rather than a docstring."
     )
 )
 B022 = Error(
     message=(
-        "B022 No arguments passed to `contextlib.suppress`."
-        "No exceptions will be suppressed and therefore this"
+        "B022 No arguments passed to `contextlib.suppress`. "
+        "No exceptions will be suppressed and therefore this "
         "context manager is redundant."
     )
 )
diff --git a/tests/b020.py b/tests/b020.py
index 4f30984..9bdc4b4 100644
--- a/tests/b020.py
+++ b/tests/b020.py
@@ -35,3 +35,6 @@
 # However we still call out reassigning the iterable in the comprehension.
 for vars in [i for i in vars]:
     print(vars)
+
+for var in sorted(range(10), key=lambda var: var.real):
+    print(var)
diff --git a/tests/test_bugbear.py b/tests/test_bugbear.py
index a974cf4..12469e6 100644
--- a/tests/test_bugbear.py
+++ b/tests/test_bugbear.py
@@ -438,6 +438,16 @@ def test_b9_extend_select(self):
             ),
         )
 
+    def test_b9_flake8_next_default_options(self):
+        filename = Path(__file__).absolute().parent / "b950.py"
+
+        # in flake8 next, unset select / extend_select will be `None` to
+        # signify the default values
+        mock_options = Namespace(select=None, extend_select=None)
+        bbc = BugBearChecker(filename=str(filename), options=mock_options)
+        errors = list(bbc.run())
+        self.assertEqual(errors, [])
+
     def test_selfclean_bugbear(self):
         filename = Path(__file__).absolute().parent.parent / "bugbear.py"
         proc = subprocess.run(