diff --git a/stubs/gunicorn/METADATA.toml b/stubs/gunicorn/METADATA.toml
index 6f6a8c4a4ed8..f080ece8c618 100644
--- a/stubs/gunicorn/METADATA.toml
+++ b/stubs/gunicorn/METADATA.toml
@@ -1,8 +1,15 @@
-version = "25.3.0"
+version = "26.0.0"
 upstream-repository = "https://github.com/benoitc/gunicorn"
 dependencies = ["types-gevent"]
 
 [tool.stubtest]
 supported-platforms = ["linux", "darwin"]
 ci-platforms = ["linux", "darwin"]
-stubtest-dependencies = ["gevent>=1.4.0", "eventlet>=0.24.1,!=0.36.0", "tornado>=0.2", "setproctitle", "PasteDeploy", "inotify"]
+stubtest-dependencies = [
+    "gevent>=1.4.0",
+    "eventlet>=0.24.1,!=0.36.0",
+    "tornado>=0.2",
+    "setproctitle",
+    "PasteDeploy",
+    "inotify",
+]
diff --git a/stubs/gunicorn/gunicorn/asgi/parser.pyi b/stubs/gunicorn/gunicorn/asgi/parser.pyi
index aa3387bf65a6..69606932ee00 100644
--- a/stubs/gunicorn/gunicorn/asgi/parser.pyi
+++ b/stubs/gunicorn/gunicorn/asgi/parser.pyi
@@ -10,6 +10,7 @@ class InvalidProxyLine(ParseError): ...
 class InvalidProxyHeader(ParseError): ...
 
 PP_V2_SIGNATURE: Final[bytes]
+RFC9110_6_5_1_FORBIDDEN_TRAILER: Final[frozenset[bytes]]
 
 class PPCommand(IntEnum):
     LOCAL = 0x0
diff --git a/stubs/gunicorn/gunicorn/asgi/protocol.pyi b/stubs/gunicorn/gunicorn/asgi/protocol.pyi
index 664c64d68db1..376851ee89ab 100644
--- a/stubs/gunicorn/gunicorn/asgi/protocol.pyi
+++ b/stubs/gunicorn/gunicorn/asgi/protocol.pyi
@@ -38,7 +38,7 @@ class _BodyReceieverReceiveReturnType(TypedDict):
     more_body: NotRequired[bool]
 
 class BodyReceiver:
-    __slots__ = ("_chunks", "_complete", "_body_finished", "_closed", "_waiter", "request", "protocol")
+    __slots__ = ("_chunks", "_complete", "_body_finished", "_closed", "_body_wait_expired", "_waiter", "request", "protocol")
     request: CallbackRequest
     protocol: ASGIProtocol
 
diff --git a/stubs/gunicorn/gunicorn/http/message.pyi b/stubs/gunicorn/gunicorn/http/message.pyi
index dfa351423ef0..4243ef9eb75a 100644
--- a/stubs/gunicorn/gunicorn/http/message.pyi
+++ b/stubs/gunicorn/gunicorn/http/message.pyi
@@ -34,6 +34,7 @@ TOKEN_RE: Final[re.Pattern[str]]
 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]]
 
 class Message:
     cfg: Config
diff --git a/stubs/gunicorn/gunicorn/http/parser.pyi b/stubs/gunicorn/gunicorn/http/parser.pyi
index 7d0006b3ddbc..5da5625d7d67 100644
--- a/stubs/gunicorn/gunicorn/http/parser.pyi
+++ b/stubs/gunicorn/gunicorn/http/parser.pyi
@@ -19,7 +19,7 @@ class Parser:
 
     def __init__(self, cfg: Config, source: socket.socket | Iterable[bytes], source_addr: _AddressType) -> None: ...
     def __iter__(self) -> Iterator[Request]: ...
-    def finish_body(self) -> None: ...
+    def finish_body(self, deadline: float | None = None, max_bytes: int | None = None) -> None: ...
     def __next__(self) -> Request: ...
 
     next: Callable[[Parser], Request]
diff --git a/stubs/gunicorn/gunicorn/util.pyi b/stubs/gunicorn/gunicorn/util.pyi
index 2f21a00eba19..5bec0621ad15 100644
--- a/stubs/gunicorn/gunicorn/util.pyi
+++ b/stubs/gunicorn/gunicorn/util.pyi
@@ -27,6 +27,7 @@ def parse_address(netloc: str, default_port: str = "8000") -> _AddressType: ...
 def close_on_exec(fd: FileDescriptorLike) -> None: ...
 def set_non_blocking(fd: FileDescriptorLike) -> None: ...
 def close(sock: socket) -> None: ...
+def close_graceful(sock: socket, timeout: float = 2.0, max_drain: int = 65536) -> None: ...
 def write_chunk(sock: socket, data: bytes) -> None: ...
 def write(sock: socket, data: bytes, chunked: bool = False) -> None: ...
 def write_nonblock(sock: socket, data: bytes, chunked: bool = False) -> None: ...
diff --git a/stubs/gunicorn/gunicorn/workers/geventlet.pyi b/stubs/gunicorn/gunicorn/workers/geventlet.pyi
deleted file mode 100644
index c0a53550ceae..000000000000
--- a/stubs/gunicorn/gunicorn/workers/geventlet.pyi
+++ /dev/null
@@ -1,23 +0,0 @@
-from types import FrameType
-from typing import Any, TypeAlias
-
-from gunicorn.workers.base_async import AsyncWorker
-
-from .._types import _AddressType
-
-GreenSocket: TypeAlias = Any  # eventlet GreenSocket class
-
-EVENTLET_WSGI_LOCAL: Any  # eventlet local instance
-EVENTLET_ALREADY_HANDLED: bool | None
-
-def patch_sendfile() -> None: ...
-
-class EventletWorker(AsyncWorker):
-    def patch(self) -> None: ...
-    def is_already_handled(self, respiter: object) -> bool: ...
-    def init_process(self) -> None: ...
-    def handle_quit(self, sig: int, frame: FrameType | None) -> None: ...
-    def handle_usr1(self, sig: int, frame: FrameType | None) -> None: ...
-    def timeout_ctx(self) -> None: ...
-    def handle(self, listener: GreenSocket, client: GreenSocket, addr: _AddressType) -> None: ...
-    def run(self) -> None: ...
diff --git a/stubs/gunicorn/gunicorn/workers/gthread.pyi b/stubs/gunicorn/gunicorn/workers/gthread.pyi
index 26d30dfb3c48..51fab72f4e07 100644
--- a/stubs/gunicorn/gunicorn/workers/gthread.pyi
+++ b/stubs/gunicorn/gunicorn/workers/gthread.pyi
@@ -33,7 +33,7 @@ class TConn:
     def init(self) -> None: ...
     def set_timeout(self) -> None: ...
     def wait_for_data(self, timeout: float | None) -> bool: ...
-    def close(self) -> None: ...
+    def close(self, graceful: bool = False) -> None: ...
 
 class PollableMethodQueue:
     def __init__(self) -> None: ...