diff --git a/stubs/boltons/METADATA.toml b/stubs/boltons/METADATA.toml
index 9c5868f7d067..7a5f5eb62b1f 100644
--- a/stubs/boltons/METADATA.toml
+++ b/stubs/boltons/METADATA.toml
@@ -1,2 +1,2 @@
-version = "26.1.*"
+version = "26.2.*"
 upstream-repository = "https://github.com/mahmoud/boltons"
diff --git a/stubs/boltons/boltons/cacheutils.pyi b/stubs/boltons/boltons/cacheutils.pyi
index 978da569d563..8067421667ff 100644
--- a/stubs/boltons/boltons/cacheutils.pyi
+++ b/stubs/boltons/boltons/cacheutils.pyi
@@ -47,7 +47,7 @@ class LRI(dict[_KT, _VT]):
     @overload
     def setdefault(self, key: _KT, default: _VT) -> _VT: ...
 
-    def update(self, E: SupportsKeysAndGetItem[_KT, _VT] | Iterable[tuple[_KT, _VT]], **F: _VT) -> None: ...  # type: ignore[override]
+    def update(self, E: SupportsKeysAndGetItem[_KT, _VT] | Iterable[tuple[_KT, _VT]] = (), **F: _VT) -> None: ...  # type: ignore[override]
 
 class LRU(LRI[_KT, _VT]):
     def __getitem__(self, key: _KT) -> _VT: ...
diff --git a/stubs/boltons/boltons/funcutils.pyi b/stubs/boltons/boltons/funcutils.pyi
index 1a964c7d8abc..96ec5b410cec 100644
--- a/stubs/boltons/boltons/funcutils.pyi
+++ b/stubs/boltons/boltons/funcutils.pyi
@@ -51,7 +51,7 @@ class FunctionBuilder:
     name: Incomplete
     def __init__(self, name, **kw) -> None: ...
     def get_sig_str(self, with_annotations: bool = True): ...
-    def get_invocation_str(self): ...
+    def get_invocation_str(self, target: Callable[..., object] | None = None) -> str: ...
     @classmethod
     def from_func(cls, func): ...
     def get_func(self, execdict=None, add_source: bool = True, with_dict: bool = True): ...
diff --git a/stubs/boltons/boltons/jsonutils.pyi b/stubs/boltons/boltons/jsonutils.pyi
index 276db26ef881..7352d3ad4030 100644
--- a/stubs/boltons/boltons/jsonutils.pyi
+++ b/stubs/boltons/boltons/jsonutils.pyi
@@ -7,9 +7,13 @@ def reverse_iter_lines(
     file_obj: IO[bytes], blocksize: int = 4096, preseek: bool = True, encoding: None = None
 ) -> Generator[bytes]: ...
 @overload
-def reverse_iter_lines(file_obj: IO[str], blocksize: int = 4096, preseek: bool = True, *, encoding: str) -> Generator[str]: ...
+def reverse_iter_lines(
+    file_obj: IO[str], blocksize: int = 4096, preseek: bool = True, encoding: str | None = None
+) -> Generator[str]: ...
+@overload
+def reverse_iter_lines(file_obj: IO[bytes], blocksize: int = 4096, preseek: bool = True, *, encoding: str) -> Generator[str]: ...
 @overload
-def reverse_iter_lines(file_obj: IO[str], blocksize: int, preseek: bool, encoding: str) -> Generator[str]: ...
+def reverse_iter_lines(file_obj: IO[bytes], blocksize: int, preseek: bool, encoding: str) -> Generator[str]: ...
 
 class JSONLIterator:
     ignore_errors: bool
diff --git a/stubs/boltons/boltons/statsutils.pyi b/stubs/boltons/boltons/statsutils.pyi
index 4165b8a16373..525569e1fbce 100644
--- a/stubs/boltons/boltons/statsutils.pyi
+++ b/stubs/boltons/boltons/statsutils.pyi
@@ -35,6 +35,7 @@ class Stats:
     mean: _StatsProperty
     max: _StatsProperty
     min: _StatsProperty
+    mode: _StatsProperty
     median: _StatsProperty
     iqr: _StatsProperty
     trimean: _StatsProperty
@@ -61,6 +62,7 @@ def describe(
 
 mean: Incomplete
 median: Incomplete
+mode: Incomplete
 iqr: Incomplete
 trimean: Incomplete
 variance: Incomplete
diff --git a/stubs/boltons/boltons/strutils.pyi b/stubs/boltons/boltons/strutils.pyi
index 2eae46714980..71b94cbcd22a 100644
--- a/stubs/boltons/boltons/strutils.pyi
+++ b/stubs/boltons/boltons/strutils.pyi
@@ -65,8 +65,10 @@ def multi_replace(text: str, sub_map: dict[str, str], **kwargs) -> str: ...
 def unwrap_text(text: str, ending: str | None = "\n\n") -> str: ...
 def removeprefix(text: str, prefix: str) -> str: ...
 def human_readable_list(items: Sequence[str], delimiter: str = ",", conjunction: str = "and", *, oxford: bool = True) -> str: ...
+def ellipsize(text: str, max_len: int = 160, *, ellipsis: str = "…") -> str: ...
 
 __all__ = [
+    "ellipsize",
     "camel2under",
     "under2camel",
     "slugify",
diff --git a/stubs/boltons/boltons/timeutils.pyi b/stubs/boltons/boltons/timeutils.pyi
index 7416be362361..35971a434041 100644
--- a/stubs/boltons/boltons/timeutils.pyi
+++ b/stubs/boltons/boltons/timeutils.pyi
@@ -55,6 +55,7 @@ class USTimeZone(tzinfo):
     def tzname(self, dt: datetime | None) -> str: ...
     def utcoffset(self, dt: datetime | None) -> timedelta: ...
     def dst(self, dt: datetime | None) -> timedelta: ...
+    def fromutc(self, dt: datetime) -> datetime: ...
 
 Eastern: USTimeZone
 Central: USTimeZone