chore(release): prepare v0.4.9

docs/product/release-readiness.md

@@ -443,6 +443,13 @@ path, and canary route rather than as a user-facing release baseline.
   matching `v0.4.8` tag. LoopX adopts Apache-2.0 for the open core, ships as a
   first-class PyPI distribution, adds per-Todo validation budgets, and tightens
   benchmark integrity qualification and Content Ops presentation density.
+- `v0.4.9` on 2026-08-19: cross-platform host and long-loop reliability release
+  at the matching `v0.4.9` tag. LoopX makes PyPI the default complete install
+  path, adds native Windows PowerShell and KunlunCode Goal Pro support, ships an
+  opt-in repository change-window provider with a durable pending-change
+  ledger, and hardens heartbeat settlement, Todo validation, PR review
+  scheduling, native Goal benchmark isolation, and public repository signal
+  providers.
 
 When a new public release is promoted, add it here only after the matching tag,
 release note, stable ref, update path, and focused release canary agree.

loopx/__init__.py

@@ -2,4 +2,4 @@
 
 __all__ = ["__version__"]
 
-__version__ = "0.4.8"
+__version__ = "0.4.9"

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "loopx"
-version = "0.4.8"
+version = "0.4.9"
 description = "A lightweight Loop Engineering control plane for long-running agent goals."
 readme = "README.md"
 requires-python = ">=3.11"

tests/test_license_metadata.py

@@ -31,8 +31,8 @@ def test_root_license_is_canonical_apache_2_with_historical_notices() -> None:
 
 def test_python_distributions_declare_apache_2() -> None:
     root_project = _project_metadata("pyproject.toml")
-    assert root_project["version"] == "0.4.8"
-    assert '__version__ = "0.4.8"' in (ROOT / "loopx/__init__.py").read_text()
+    assert root_project["version"] == "0.4.9"
+    assert '__version__ = "0.4.9"' in (ROOT / "loopx/__init__.py").read_text()
     assert root_project["license"] == "Apache-2.0"
     assert set(root_project["license-files"]) == {"LICENSE", "NOTICE", "LICENSE-MIT"}