diff --git a/stubs/boltons/METADATA.toml b/stubs/boltons/METADATA.toml
index 520e591d7..a6a82229b 100644
--- a/stubs/boltons/METADATA.toml
+++ b/stubs/boltons/METADATA.toml
@@ -1,5 +1,2 @@
-version = "23.0.*"
+version = "23.1.*"
 upstream_repository = "https://github.com/mahmoud/boltons"
-
-[tool.stubtest]
-ignore_missing_stub = false
diff --git a/stubs/boltons/boltons/ecoutils.pyi b/stubs/boltons/boltons/ecoutils.pyi
index ef2da2178..fd65b87cc 100644
--- a/stubs/boltons/boltons/ecoutils.pyi
+++ b/stubs/boltons/boltons/ecoutils.pyi
@@ -15,7 +15,6 @@ EXPAT_VERSION: str
 CPU_COUNT: int
 HAVE_THREADING: bool
 HAVE_IPV6: bool
-RLIMIT_NOFILE: int
 RLIMIT_FDS_SOFT: int
 RLIMIT_FDS_HARD: int
 START_TIME_INFO: dict[str, str | float]
diff --git a/stubs/boltons/boltons/iterutils.pyi b/stubs/boltons/boltons/iterutils.pyi
index c448e7427..bc7a7417b 100644
--- a/stubs/boltons/boltons/iterutils.pyi
+++ b/stubs/boltons/boltons/iterutils.pyi
@@ -19,10 +19,10 @@ def chunked_iter(src, size, **kw) -> Generator[Incomplete, None, Incomplete]: ..
 def chunk_ranges(
     input_size: int, chunk_size: int, input_offset: int = 0, overlap_size: int = 0, align: bool = False
 ) -> Generator[tuple[int, int], None, None]: ...
-def pairwise(src): ...
-def pairwise_iter(src): ...
-def windowed(src, size): ...
-def windowed_iter(src, size): ...
+def pairwise(src, end=...): ...
+def pairwise_iter(src, end=...): ...
+def windowed(src, size, fill=...): ...
+def windowed_iter(src, size, fill=...): ...
 def xfrange(stop, start: Incomplete | None = None, step: float = 1.0) -> Generator[Incomplete, None, None]: ...
 def frange(stop, start: Incomplete | None = None, step: float = 1.0): ...
 def backoff(start, stop, count: Incomplete | None = None, factor: float = 2.0, jitter: bool = False): ...