diff --git a/pants.toml b/pants.toml
index 68be559b275b..7d15e0b1ab03 100644
--- a/pants.toml
+++ b/pants.toml
@@ -154,7 +154,6 @@ pytest = "3rdparty/python/pytest.lock"
 [python-infer]
 assets = true
 unowned_dependency_behavior = "error"
-use_rust_parser = true
 
 [docformatter]
 args = ["--wrap-summaries=100", "--wrap-descriptions=100"]
diff --git a/src/python/pants/backend/go/util_rules/cgo.py b/src/python/pants/backend/go/util_rules/cgo.py
index d4b6be10e326..4150131b71d8 100644
--- a/src/python/pants/backend/go/util_rules/cgo.py
+++ b/src/python/pants/backend/go/util_rules/cgo.py
@@ -22,7 +22,6 @@
 from pants.backend.go.util_rules.cgo_security import check_linker_flags
 from pants.backend.go.util_rules.goroot import GoRoot
 from pants.backend.go.util_rules.sdk import GoSdkProcess
-from pants.base.deprecated import warn_or_error
 from pants.base.glob_match_error_behavior import GlobMatchErrorBehavior
 from pants.core.util_rules.system_binaries import BashBinary, BinaryPath, BinaryPathTest
 from pants.engine.engine_aware import EngineAwareParameter
@@ -287,19 +286,6 @@ async def setup_compiler_cmd(
     return SetupCompilerCmdResult(tuple(args))
 
 
-@dataclass(frozen=True)
-class CGoCompilerWrapperScriptRequest:
-    def __post_init__(self) -> None:
-        warn_or_error(
-            "2.18.0.dev0",
-            "using `Get(CGoCompilerWrapperScript, CGoCompilerWrapperScriptRequest)",
-            (
-                "Instead, simply use `Get(CGoCompilerWrapperScript)` or put "
-                + "`CGoCompilerWrapperScript` in the rule signature"
-            ),
-        )
-
-
 @dataclass(frozen=True)
 class CGoCompilerWrapperScript:
     digest: Digest
@@ -328,13 +314,6 @@ async def make_cgo_compile_wrapper_script() -> CGoCompilerWrapperScript:
     return CGoCompilerWrapperScript(digest=digest)
 
 
-@rule
-def cgo_wrapper_compile_script_request(
-    _: CGoCompilerWrapperScriptRequest, script: CGoCompilerWrapperScript
-) -> CGoCompilerWrapperScript:
-    return script
-
-
 async def _cc(
     binary_name: str,
     input_digest: Digest,
diff --git a/src/python/pants/backend/python/dependency_inference/parse_python_dependencies.py b/src/python/pants/backend/python/dependency_inference/parse_python_dependencies.py
index 9cc40e5329f7..0d95a4280bff 100644
--- a/src/python/pants/backend/python/dependency_inference/parse_python_dependencies.py
+++ b/src/python/pants/backend/python/dependency_inference/parse_python_dependencies.py
@@ -183,13 +183,12 @@ async def parse_python_dependencies(
     # We operate on PythonSourceField, which should be one file.
     assert len(stripped_sources.snapshot.files) == 1
 
-    if python_infer_subsystem.options.is_default("use_rust_parser"):
-        # NB: In 2.18, we'll switch the default to `True` and then warn if the value is set (to anything)
+    if not python_infer_subsystem.options.is_default("use_rust_parser"):
         # NB: In 2.19, we remove the option altogether and remove the old code.
         warn_or_error(
-            removal_version="2.18.0.dev0",
-            entity="Not explicitly providing [python-infer].use_rust_parser",
-            hint="Read the help for [python-infer].use_rust_parser, then set the value in pants.toml.",
+            removal_version="2.19.0.dev0",
+            entity="Explicitly providing [python-infer].use_rust_parser",
+            hint="Read the help for [python-infer].use_rust_parser, then stop setting the value in pants.toml.",
         )
 
     has_custom_dep_inferences = len(union_membership[PythonDependencyVisitorRequest]) > 1
diff --git a/src/python/pants/backend/python/dependency_inference/subsystem.py b/src/python/pants/backend/python/dependency_inference/subsystem.py
index 19625b764a55..11fe1905b25a 100644
--- a/src/python/pants/backend/python/dependency_inference/subsystem.py
+++ b/src/python/pants/backend/python/dependency_inference/subsystem.py
@@ -192,7 +192,7 @@ class PythonInferSubsystem(Subsystem):
     )
 
     use_rust_parser = BoolOption(
-        default=False,
+        default=True,
         help=softwrap(
             f"""
             Use the new Rust-based, multithreaded, in-process dependency parser.
@@ -205,16 +205,16 @@ class PythonInferSubsystem(Subsystem):
             while hot-cache had no difference. Additionally, Pants can now infer dependencies from
             Python scripts with syntax errors.
 
-            However, since this parser is completely different it has the potential of introducing
-            differences in dependency inference. Although the Pants suite of tests only identified
-            differences when using the `# pants: no-infer-dep` pragma, and string-based
-            imports/assets, Out of an abundance of caution, this is behind a feature flag that will
-            eventually be on-by-default then removed.
+            After leaving this defaulted to disabled for a a release cycle, Pants 2.18 started
+            defaulting to enabling this.
+
+            If you think the new behaviour is causing problems, it is recommended that you run
+            `{bin_name()} peek :: > before.json` and then
+            `{bin_name()} --python-infer-use-rust-parser=False peek :: > after.json` and compare the
+            two results.
 
-            It is recommended that you run `{bin_name()} peek :: > before.json` and then
-            `{bin_name()} --python-infer-use-rust-parser peek :: > after.json` and compare the two
-            results. If all looks good, set `use_rust_parser` in `[python-infer]` in `pants.toml`.
-            If you think there's a bug please file an issue: https://github.com/pantsbuild/pants/issues/new/choose.
+            If you think there is a bug and need to disable it, please file an issue:
+            https://github.com/pantsbuild/pants/issues/new/choose.
             """
         ),
     )
diff --git a/src/python/pants/backend/python/subsystems/python_tool_base.py b/src/python/pants/backend/python/subsystems/python_tool_base.py
index fe251cf9c673..2b90818a51dd 100644
--- a/src/python/pants/backend/python/subsystems/python_tool_base.py
+++ b/src/python/pants/backend/python/subsystems/python_tool_base.py
@@ -125,7 +125,7 @@ class PythonToolRequirementsBase(Subsystem):
     _lockfile = StrOption(
         default=DEFAULT_TOOL_LOCKFILE,
         advanced=True,
-        removal_version="2.18.0.dev0",
+        removal_version="2.18.0.dev1",
         removal_hint=lambda cls: softwrap(
             f"""\
             Custom tool versions are now installed from named resolves, as
@@ -478,7 +478,7 @@ def __new__(cls):
         return super().__new__(
             cls,
             default=True,
-            removal_version="2.18.0.dev0",
+            removal_version="2.18.0.dev1",
             removal_hint="Use the export goal's --resolve option to select tools to export, instead "
             "of using this option to exempt a tool from export-by-default.",
             help=(
diff --git a/src/python/pants/backend/python/typecheck/mypy/subsystem.py b/src/python/pants/backend/python/typecheck/mypy/subsystem.py
index 77286449532b..2fae068d1d65 100644
--- a/src/python/pants/backend/python/typecheck/mypy/subsystem.py
+++ b/src/python/pants/backend/python/typecheck/mypy/subsystem.py
@@ -151,7 +151,7 @@ class MyPy(PythonToolBase):
     )
     extra_type_stubs = StrListOption(
         advanced=True,
-        removal_version="2.18.0dev0",
+        removal_version="2.18.0.dev1",
         removal_hint=softwrap(
             f"""
             Extra type stubs are now installed from a named resolve, as described
@@ -183,7 +183,7 @@ class MyPy(PythonToolBase):
         advanced=True,
         # Note that there is no default lockfile, as by default, extra_type_stubs is empty.
         default=NO_TOOL_LOCKFILE,
-        removal_version="2.18.0dev0",
+        removal_version="2.18.0.dev1",
         removal_hint=softwrap(
             f"""
             Extra type stubs are now installed from a named resolve, as described
diff --git a/src/python/pants/backend/shell/target_types.py b/src/python/pants/backend/shell/target_types.py
index d4e2e186936f..1a0d5d8e51cf 100644
--- a/src/python/pants/backend/shell/target_types.py
+++ b/src/python/pants/backend/shell/target_types.py
@@ -354,8 +354,6 @@ class SkipShellCommandTestsField(BoolField):
 
 class ShellCommandTarget(Target):
     alias = "shell_command"
-    deprecated_alias = "experimental_shell_command"
-    deprecated_alias_removal_version = "2.18.0.dev0"
     core_fields = (
         *COMMON_TARGET_FIELDS,
         ShellCommandOutputDependenciesField,
@@ -400,8 +398,6 @@ class ShellCommandTarget(Target):
 
 class ShellCommandRunTarget(Target):
     alias = "run_shell_command"
-    deprecated_alias = "experimental_run_shell_command"
-    deprecated_alias_removal_version = "2.18.0.dev0"
     core_fields = (
         *COMMON_TARGET_FIELDS,
         ShellCommandExecutionDependenciesField,
diff --git a/src/python/pants/core/target_types.py b/src/python/pants/core/target_types.py
index 89b2a264c84b..3bf1b9844b66 100644
--- a/src/python/pants/core/target_types.py
+++ b/src/python/pants/core/target_types.py
@@ -11,7 +11,6 @@
 from pathlib import PurePath
 from typing import Generic, Optional, Sequence, TypeVar, Union, cast
 
-from pants.base.deprecated import warn_or_error
 from pants.core.goals import package
 from pants.core.goals.package import (
     BuiltPackage,
@@ -651,16 +650,6 @@ class GenericTarget(Target):
 # -----------------------------------------------------------------------------------------------
 
 
-@dataclass(frozen=True)
-class AllAssetTargetsRequest:
-    def __post_init__(self) -> None:
-        warn_or_error(
-            "2.18.0.dev0",
-            "using `Get(AllAssetTargets, AllAssetTargetsRequest)",
-            "Instead, simply use `Get(AllAssetTargets)` or put `AllAssetTargets` in the rule signature",
-        )
-
-
 @dataclass(frozen=True)
 class AllAssetTargets:
     resources: tuple[Target, ...]
@@ -679,13 +668,6 @@ def find_all_assets(all_targets: AllTargets) -> AllAssetTargets:
     return AllAssetTargets(tuple(resources), tuple(files))
 
 
-@rule
-def find_all_assets_request(
-    _: AllAssetTargetsRequest, all_asset_targets: AllAssetTargets
-) -> AllAssetTargets:
-    return all_asset_targets
-
-
 @dataclass(frozen=True)
 class AllAssetTargetsByPath:
     resources: FrozenDict[PurePath, frozenset[Target]]
diff --git a/src/python/pants/engine/internals/specs_rules.py b/src/python/pants/engine/internals/specs_rules.py
index b64e84b53a53..d31533588bb4 100644
--- a/src/python/pants/engine/internals/specs_rules.py
+++ b/src/python/pants/engine/internals/specs_rules.py
@@ -543,7 +543,7 @@ async def find_valid_field_sets_for_target_roots(
             secondary_owner_targets.add(tgt)
     if secondary_owner_targets:
         warn_or_error(
-            removal_version="2.18.0.dev0",
+            removal_version="2.18.0.dev1",
             entity=softwrap(
                 """
                 indirectly referring to a target by using a corresponding file argument, when the
diff --git a/src/python/pants/jvm/goals/lockfile_test.py b/src/python/pants/jvm/goals/lockfile_test.py
index 8ba8cbe2e5f9..f05f65361d98 100644
--- a/src/python/pants/jvm/goals/lockfile_test.py
+++ b/src/python/pants/jvm/goals/lockfile_test.py
@@ -103,7 +103,6 @@ def mk(name):
                       artifact='artifact',
                       version='1',
                       jar='jar.jar',
-                      excludes=['ex:clude'],
                   )
 
                 mk('one')
diff --git a/src/python/pants/jvm/resolve/common.py b/src/python/pants/jvm/resolve/common.py
index 2041c44cd89d..e6c723d866b9 100644
--- a/src/python/pants/jvm/resolve/common.py
+++ b/src/python/pants/jvm/resolve/common.py
@@ -13,7 +13,6 @@
 from pants.engine.target import Target
 from pants.jvm.target_types import (
     JvmArtifactArtifactField,
-    JvmArtifactExcludeDependenciesField,
     JvmArtifactExclusionsField,
     JvmArtifactFieldSet,
     JvmArtifactGroupField,
@@ -162,7 +161,6 @@ def from_jvm_artifact_target(cls, target: Target) -> ArtifactRequirement:
                 "`JvmArtifactFieldSet` fields present."
             )
 
-        excludes_coords = target[JvmArtifactExcludeDependenciesField].value or ()
         exclusions = target[JvmArtifactExclusionsField].value or ()
         return ArtifactRequirement(
             coordinate=Coordinate(
@@ -176,10 +174,7 @@ def from_jvm_artifact_target(cls, target: Target) -> ArtifactRequirement:
                 if target[JvmArtifactJarSourceField].value
                 else None
             ),
-            excludes=frozenset(
-                [*(exclusion.to_coord_str() for exclusion in exclusions), *excludes_coords]
-            )
-            or None,
+            excludes=frozenset([*(exclusion.to_coord_str() for exclusion in exclusions)]) or None,
         )
 
     def with_extra_excludes(self, *excludes: str) -> ArtifactRequirement:
diff --git a/src/python/pants/jvm/target_types.py b/src/python/pants/jvm/target_types.py
index 80cb615e25fd..17d4f32f8d75 100644
--- a/src/python/pants/jvm/target_types.py
+++ b/src/python/pants/jvm/target_types.py
@@ -267,26 +267,6 @@ class JvmProvidesTypesField(StringSequenceField):
     )
 
 
-class JvmArtifactExcludeDependenciesField(StringSequenceField):
-    alias = "excludes"
-    help = help_text(
-        """
-        A list of unversioned coordinates (i.e. `group:artifact`) that should be excluded
-        as dependencies when this artifact is resolved.
-
-        This does not prevent this artifact from being included in the resolve as a dependency
-        of other artifacts that depend on it, and is currently intended as a way to resolve
-        version conflicts in complex resolves.
-
-        These values are passed directly to Coursier, and if specified incorrectly will show a
-        parse error from Coursier.
-        """
-    )
-
-    removal_hint = "Use `exclusions` field instead"
-    removal_version = "2.18.0.dev0"
-
-
 @dataclass(frozen=True)
 class JvmArtifactExclusion:
     alias: ClassVar[str] = "jvm_exclude"
@@ -405,7 +385,6 @@ class JvmArtifactTarget(Target):
         JvmArtifactUrlField,  # TODO: should `JvmArtifactFieldSet` have an `all_fields` field?
         JvmArtifactJarSourceField,
         JvmArtifactResolveField,
-        JvmArtifactExcludeDependenciesField,
         JvmArtifactExclusionsField,
         JvmJdkField,
         JvmMainClassNameField,