diff --git a/stubs/gunicorn/METADATA.toml b/stubs/gunicorn/METADATA.toml
index 3725c9c6add0..5464efe0bd00 100644
--- a/stubs/gunicorn/METADATA.toml
+++ b/stubs/gunicorn/METADATA.toml
@@ -1,4 +1,4 @@
-version = "26.0.0"
+version = "26.1.0"
 upstream-repository = "https://github.com/benoitc/gunicorn"
 optional-dependencies = ["types-gevent"]
 
diff --git a/stubs/gunicorn/gunicorn/arbiter.pyi b/stubs/gunicorn/gunicorn/arbiter.pyi
index 15710a89669d..422a711477c6 100644
--- a/stubs/gunicorn/gunicorn/arbiter.pyi
+++ b/stubs/gunicorn/gunicorn/arbiter.pyi
@@ -75,5 +75,6 @@ class Arbiter:
     def kill_worker(self, pid: int, sig: int) -> None: ...
     def spawn_dirty_arbiter(self) -> int | None: ...
     def kill_dirty_arbiter(self, sig: int) -> None: ...
+    def handle_dirty_arbiter_exit(self, wpid: int, status: int) -> None: ...
     def reap_dirty_arbiter(self) -> None: ...
     def manage_dirty_arbiter(self) -> None: ...
diff --git a/stubs/gunicorn/gunicorn/asgi/parser.pyi b/stubs/gunicorn/gunicorn/asgi/parser.pyi
index f98f04a0f178..1cdb54519985 100644
--- a/stubs/gunicorn/gunicorn/asgi/parser.pyi
+++ b/stubs/gunicorn/gunicorn/asgi/parser.pyi
@@ -54,6 +54,8 @@ class UnsupportedTransferCoding(ParseError): ...
 class InvalidChunkSize(ParseError): ...
 class InvalidChunkExtension(ParseError): ...
 
+RFC9110_5_3_SINGLETON_FIELDS: Final[frozenset[bytes]]
+
 class PythonProtocol:
     __slots__ = (
         "_on_message_begin",
diff --git a/stubs/gunicorn/gunicorn/config.pyi b/stubs/gunicorn/gunicorn/config.pyi
index 8eabbee8eddd..c8ef8e0da045 100644
--- a/stubs/gunicorn/gunicorn/config.pyi
+++ b/stubs/gunicorn/gunicorn/config.pyi
@@ -192,7 +192,7 @@ def validate_file_exists(val: str) -> str: ...
 def validate_file_exists(val: None) -> None: ...
 
 def validate_list_string(val: str | list[str] | None) -> list[str]: ...
-def validate_list_of_existing_files(val: str | list[str] | None) -> list[str]: ...
+def validate_list_of_files_or_patterns(val: str | list[str] | None) -> list[str]: ...
 def validate_string_to_addr_list(val: str | None) -> list[str]: ...
 def validate_string_to_list(val: str | None) -> list[str]: ...
 
diff --git a/stubs/gunicorn/gunicorn/http/message.pyi b/stubs/gunicorn/gunicorn/http/message.pyi
index 4819ab116870..3f593c5aaeec 100644
--- a/stubs/gunicorn/gunicorn/http/message.pyi
+++ b/stubs/gunicorn/gunicorn/http/message.pyi
@@ -36,6 +36,7 @@ METHOD_BADCHAR_RE: Final[re.Pattern[str]]
 VERSION_RE: Final[re.Pattern[str]]
 RFC9110_5_5_INVALID_AND_DANGEROUS: Final[re.Pattern[str]]
 RFC9110_6_5_1_FORBIDDEN_TRAILER: Final[frozenset[str]]
+RFC9110_5_3_SINGLETON_FIELDS: Final[frozenset[str]]
 
 class Message:
     cfg: Config
diff --git a/stubs/gunicorn/gunicorn/util.pyi b/stubs/gunicorn/gunicorn/util.pyi
index bc71a50e5d2b..f635cef2e69b 100644
--- a/stubs/gunicorn/gunicorn/util.pyi
+++ b/stubs/gunicorn/gunicorn/util.pyi
@@ -1,16 +1,19 @@
 import types
 from _typeshed import FileDescriptorLike, FileDescriptorOrPath, StrOrBytesPath
 from inspect import _IntrospectableCallable, _ParameterKind
+from re import Pattern
 from socket import socket
-from typing import Any, Literal
+from typing import Any, Final, Literal
 from typing_extensions import Never
 from urllib.parse import SplitResult
 
 from ._types import _AddressType, _WSGIAppType
 
-REDIRECT_TO: str
+REDIRECT_TO: Final[str]
+GLOB_MAGIC_RE: Final[Pattern[str]]
 hop_headers: set[str]
 
+def is_glob_pattern(value: str) -> bool: ...
 def load_entry_point(distribution: str, group: str, name: str) -> type[object]: ...
 def load_class(
     uri: str | object, default: str = "gunicorn.workers.sync.SyncWorker", section: str = "gunicorn.workers"