diff --git a/stubs/yt-dlp/METADATA.toml b/stubs/yt-dlp/METADATA.toml
index d29f3acb0729..a2cd50aa82d2 100644
--- a/stubs/yt-dlp/METADATA.toml
+++ b/stubs/yt-dlp/METADATA.toml
@@ -1,2 +1,2 @@
-version = "2026.7.4"
+version = "2026.8.19"
 upstream-repository = "https://github.com/yt-dlp/yt-dlp"
diff --git a/stubs/yt-dlp/yt_dlp/extractor/common.pyi b/stubs/yt-dlp/yt_dlp/extractor/common.pyi
index 6922f697c4ee..6fc58a1c1d93 100644
--- a/stubs/yt-dlp/yt_dlp/extractor/common.pyi
+++ b/stubs/yt-dlp/yt_dlp/extractor/common.pyi
@@ -909,6 +909,8 @@ class InfoExtractor:
     def _cookies_passed(self) -> bool: ...
     def _mark_watched(self, *args: Any, **kwargs: Any) -> Any: ...  # Not implemented here.
     @staticmethod
+    def _generate_blockbuster_headers(*, min_headers: int = 2, max_headers: int = 8) -> dict[str, str]: ...
+    @staticmethod
     def _generic_id(url: str) -> str: ...
     def _generic_title(self, url: str = "", webpage: str = "", *, default: str | None = None) -> str | None: ...
     def _extract_chapters_helper(
diff --git a/stubs/yt-dlp/yt_dlp/utils/__init__.pyi b/stubs/yt-dlp/yt_dlp/utils/__init__.pyi
index a33675e077b3..1a76d24540fe 100644
--- a/stubs/yt-dlp/yt_dlp/utils/__init__.pyi
+++ b/stubs/yt-dlp/yt_dlp/utils/__init__.pyi
@@ -1,3 +1,4 @@
 from ._deprecated import *
+from ._legacy import *
 from ._utils import *
 from .traversal import *
diff --git a/stubs/yt-dlp/yt_dlp/utils/_deprecated.pyi b/stubs/yt-dlp/yt_dlp/utils/_deprecated.pyi
index 5f20b62a2fb0..4e642d1cf802 100644
--- a/stubs/yt-dlp/yt_dlp/utils/_deprecated.pyi
+++ b/stubs/yt-dlp/yt_dlp/utils/_deprecated.pyi
@@ -12,5 +12,9 @@ def intlist_to_bytes(xs: list[int]) -> bytes: ...
 def jwt_encode_hs256(payload_data: Any, key: str, headers: Mapping[str, Any] = {}) -> bytes: ...  # Passed to json.dumps().
 @deprecated("Use `yt_dlp.utils.make_parent_dirs` instead.")
 def make_dir(path: PathLike[AnyStr], to_screen: Callable[[str], Any] | None = None) -> bool: ...
+@deprecated("Do not use.")
+def number_of_digits(number: int) -> int: ...
+@deprecated("Use `str(uuid.uuid4())` instead.")
+def random_uuidv4() -> str: ...
 
 compiled_regex_type: type[re.Pattern[Any]]
diff --git a/stubs/yt-dlp/yt_dlp/utils/_legacy.pyi b/stubs/yt-dlp/yt_dlp/utils/_legacy.pyi
index 8f1891cc02e3..b37674b7f218 100644
--- a/stubs/yt-dlp/yt_dlp/utils/_legacy.pyi
+++ b/stubs/yt-dlp/yt_dlp/utils/_legacy.pyi
@@ -6,6 +6,7 @@ from http.client import HTTPResponse
 from http.cookiejar import CookieJar
 from subprocess import Popen
 from typing import Any, AnyStr, TypeVar
+from typing_extensions import deprecated
 
 has_certifi: bool
 has_websockets: bool
@@ -52,8 +53,13 @@ def make_HTTPS_handler(
 def process_communicate_or_kill(
     p: Popen[Any], *args: Any, **kwargs: Any  # args/kwargs passed to Popen.__init__().
 ) -> tuple[AnyStr, AnyStr]: ...
+@deprecated("Do not use.")
 def encodeFilename(s: str, for_subprocess: Unused = False) -> bytes: ...
+@deprecated("Do not use.")
 def decodeFilename(b: bytes, for_subprocess: Unused = False) -> str: ...
+@deprecated("Do not use.")
 def decodeArgument(b: _T) -> _T: ...
+@deprecated("Do not use.")
 def decodeOption(optval: AnyStr) -> str: ...
+@deprecated("Use `str` instead.")
 def error_to_compat_str(err: Any) -> str: ...  # Calls str(err).
diff --git a/stubs/yt-dlp/yt_dlp/utils/_utils.pyi b/stubs/yt-dlp/yt_dlp/utils/_utils.pyi
index ea5d96e131ea..2a9eec4ba73e 100644
--- a/stubs/yt-dlp/yt_dlp/utils/_utils.pyi
+++ b/stubs/yt-dlp/yt_dlp/utils/_utils.pyi
@@ -573,7 +573,6 @@ def format_field(
     func: Callable[[Any], Any] = ...,
 ) -> str: ...
 def clean_podcast_url(url: str) -> str: ...
-def random_uuidv4() -> str: ...
 def make_parent_dirs(path: PathLike[AnyStr]) -> None: ...
 def get_executable_path() -> str: ...
 def get_user_config_dirs(package_name: str) -> Iterator[str]: ...
@@ -586,7 +585,6 @@ def jwt_decode_hs256(jwt: str) -> Any: ...  # Returns json.loads() output.
 def supports_terminal_sequences(stream: IO[Any]) -> bool: ...
 def windows_enable_vt_mode() -> None: ...
 def remove_terminal_sequences(string: str) -> str: ...
-def number_of_digits(number: int) -> int: ...
 def join_nonempty(*values: str, delim: str = "-", from_dict: Mapping[str, Any] | None = None) -> str: ...
 def scale_thumbnails_to_max_format_width(
     formats: Iterable[Mapping[str, Any]], thumbnails: Iterable[Mapping[str, Any]], url_width_re: str | Pattern[str]