diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f9cdf9481..bb6ef99284 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,6 +28,10 @@ BEGIN_UNRELEASED_TEMPLATE
 
 [0.0.0]: https://github.com/bazel-contrib/rules_python/releases/tag/0.0.0
 
+{#v0-0-0-removed}
+### Removed
+
+* Nothing removed.
 {#v0-0-0-changed}
 ### Changed
 * Nothing changed.
@@ -40,9 +44,6 @@ BEGIN_UNRELEASED_TEMPLATE
 ### Added
 * Nothing added.
 
-{#v0-0-0-removed}
-### Removed
-* Nothing removed.
 
 END_UNRELEASED_TEMPLATE
 -->
@@ -52,6 +53,12 @@ END_UNRELEASED_TEMPLATE
 
 [0.0.0]: https://github.com/bazel-contrib/rules_python/releases/tag/0.0.0
 
+{#v0-0-0-removed}
+### Removed
+* (core rules) Support for Bazel's long deprecated "extra actions" has been
+  removed
+  ([#3215](https://github.com/bazel-contrib/rules_python/issues/3215)).
+
 {#v0-0-0-changed}
 ### Changed
 * Nothing changed.
@@ -66,9 +73,6 @@ END_UNRELEASED_TEMPLATE
 ### Added
 * Nothing added.
 
-{#v0-0-0-removed}
-### Removed
-* Nothing removed.
 
 {#v1-6-0}
 ## [1.6.0] - 2025-08-23
diff --git a/python/private/common.bzl b/python/private/common.bzl
index 96f8ebeab4..9fc366818d 100644
--- a/python/private/common.bzl
+++ b/python/private/common.bzl
@@ -435,7 +435,6 @@ def create_py_info(
         if PyInfo in target or (BuiltinPyInfo != None and BuiltinPyInfo in target):
             py_info.merge(_get_py_info(target))
 
-    deps_transitive_sources = py_info.transitive_sources.build()
     py_info.transitive_sources.add(required_py_files)
 
     # We only look at data to calculate uses_shared_libraries, if it's already
@@ -457,7 +456,7 @@ def create_py_info(
             if py_info.get_uses_shared_libraries():
                 break
 
-    return py_info.build(), deps_transitive_sources, py_info.build_builtin_py_info()
+    return py_info.build(), py_info.build_builtin_py_info()
 
 def _get_py_info(target):
     return target[PyInfo] if PyInfo in target or BuiltinPyInfo == None else target[BuiltinPyInfo]
diff --git a/python/private/py_executable.bzl b/python/private/py_executable.bzl
index 30f18b5e64..5fafc8911d 100644
--- a/python/private/py_executable.bzl
+++ b/python/private/py_executable.bzl
@@ -1838,7 +1838,7 @@ def _create_providers(
             PyCcLinkParamsInfo(cc_info = cc_info),
         )
 
-    py_info, deps_transitive_sources, builtin_py_info = create_py_info(
+    py_info, builtin_py_info = create_py_info(
         ctx,
         original_sources = original_sources,
         required_py_files = required_py_files,
@@ -1848,14 +1848,6 @@ def _create_providers(
         imports = imports,
     )
 
-    # TODO(b/253059598): Remove support for extra actions; https://github.com/bazelbuild/bazel/issues/16455
-    listeners_enabled = _py_builtins.are_action_listeners_enabled(ctx)
-    if listeners_enabled:
-        _py_builtins.add_py_extra_pseudo_action(
-            ctx = ctx,
-            dependency_transitive_python_sources = deps_transitive_sources,
-        )
-
     providers.append(py_info)
     if builtin_py_info:
         providers.append(builtin_py_info)
diff --git a/python/private/py_library.bzl b/python/private/py_library.bzl
index ea2e608401..1f3e4d88d4 100644
--- a/python/private/py_library.bzl
+++ b/python/private/py_library.bzl
@@ -45,7 +45,6 @@ load(":normalize_name.bzl", "normalize_name")
 load(":precompile.bzl", "maybe_precompile")
 load(":py_cc_link_params_info.bzl", "PyCcLinkParamsInfo")
 load(":py_info.bzl", "PyInfo", "VenvSymlinkEntry", "VenvSymlinkKind")
-load(":py_internal.bzl", "py_internal")
 load(":reexports.bzl", "BuiltinPyInfo")
 load(":rule_builders.bzl", "ruleb")
 load(
@@ -55,8 +54,6 @@ load(
 )
 load(":version.bzl", "version")
 
-_py_builtins = py_internal
-
 LIBRARY_ATTRS = dicts.add(
     COMMON_ATTRS,
     PY_SRCS_ATTRS,
@@ -164,7 +161,7 @@ def py_library_impl(ctx, *, semantics):
     imports, venv_symlinks = _get_imports_and_venv_symlinks(ctx, semantics)
 
     cc_info = semantics.get_cc_info_for_library(ctx)
-    py_info, deps_transitive_sources, builtins_py_info = create_py_info(
+    py_info, builtins_py_info = create_py_info(
         ctx,
         original_sources = direct_sources,
         required_py_files = required_py_files,
@@ -175,14 +172,6 @@ def py_library_impl(ctx, *, semantics):
         venv_symlinks = venv_symlinks,
     )
 
-    # TODO(b/253059598): Remove support for extra actions; https://github.com/bazelbuild/bazel/issues/16455
-    listeners_enabled = _py_builtins.are_action_listeners_enabled(ctx)
-    if listeners_enabled:
-        _py_builtins.add_py_extra_pseudo_action(
-            ctx = ctx,
-            dependency_transitive_python_sources = deps_transitive_sources,
-        )
-
     providers = [
         DefaultInfo(files = default_outputs, runfiles = runfiles),
         py_info,