diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 944d87d..d99f738 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,10 +48,10 @@ jobs:
         python: ["3.11", "3.12", "3.13", "3.14"]
     env:
       # WIRELOG_VERSION here is the exact wirelog ref CI builds against.
-      # The default is pinned to the wirelog v0.50.0 release commit;
+      # The default is pinned to the wirelog v0.51.0 release commit;
       # override the repository variable to test another ref before
       # updating this fallback.
-      WIRELOG_VERSION: ${{ vars.WIRELOG_VERSION || '272edf3a24b25676f12c4b843d55510f5048dd2f' }}
+      WIRELOG_VERSION: ${{ vars.WIRELOG_VERSION || '0c6e0cdaee7db069be5d8d896bb59bdcb15673e9' }}
       # `runner.temp` is NOT available in job-level `env:` (only in
       # step-level contexts) — using it here caused the whole workflow
       # to fail at startup (#114). `github.workspace` IS resolvable at
@@ -66,7 +66,7 @@ jobs:
         with:
           python-version: ${{ matrix.python }}
 
-      # Resolve WIRELOG_VERSION (a tag like `v0.50.0`, a branch ref
+      # Resolve WIRELOG_VERSION (a tag like `v0.51.0`, a branch ref
       # like `main`, or an exact commit SHA) to the underlying commit
       # SHA. The cache key uses the SHA — not the version label — so that:
       #   * a moving ref like `main` invalidates the cache each time
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e987a9c..24b293f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,26 @@ wirelog floor and a validated wirelog ref (see
 
 ## [Unreleased]
 
+## [1.0.1] - 2026-06-13
+
+### Changed
+- The bundled and validated wirelog ref moves from `v0.50.0` to
+  `v0.51.0` at peeled SHA
+  `0c6e0cdaee7db069be5d8d896bb59bdcb15673e9`. This is a wirelog-only
+  rebuild: the PyreWire public API is unchanged and the minimum
+  compatible runtime wirelog version remains `0.44.0`.
+
+### Fixed
+- A rule with a single `relation(...)` body atom now derives its head
+  when the program also contains the recursive `edge`/`path` rules.
+  Previously such one-condition rules (for example `requires_review(...)`
+  and `warning(...)`) were silently missing from `EasySession.step()`
+  results. The root cause was a wirelog evaluation bug — the iteration
+  context was not reset for non-recursive strata — fixed upstream in
+  wirelog#914 and first shipped in wirelog `v0.51.0`. PyreWire performs
+  no rule evaluation of its own, so bumping the bundled engine is the
+  fix (#165).
+
 ## [1.0.0] - 2026-05-27
 
 ### Added
@@ -121,6 +141,7 @@ wirelog floor and a validated wirelog ref (see
   wirelog#852. They are available in the later [1.0.0] line, whose
   validated wirelog ref is v0.50.0. Tracked in wirelog#859.
 
-[Unreleased]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.0...HEAD
+[Unreleased]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.1...HEAD
+[1.0.1]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.0...v1.0.1
 [1.0.0]: https://github.com/semantic-reasoning/PyreWire/compare/v0.41.0...v1.0.0
 [0.41.0]: https://github.com/semantic-reasoning/PyreWire/releases/tag/v0.41.0
diff --git a/docs/support.md b/docs/support.md
index 2c3ebf7..25d7c8f 100644
--- a/docs/support.md
+++ b/docs/support.md
@@ -19,8 +19,8 @@ not need to install wirelog separately.
 | macOS | `arm64` | `macos-15` | Apple Silicon only for v1.0; no macOS Intel or universal2 wheel is produced. |
 | Windows | `win_amd64` / `AMD64` | `windows-2025-vs2026` | Built with MSVC and repaired with delvewheel. |
 
-The bundled library is built from wirelog v0.50.0, using peeled SHA
-`272edf3a24b25676f12c4b843d55510f5048dd2f`.
+The bundled library is built from wirelog v0.51.0, using peeled SHA
+`0c6e0cdaee7db069be5d8d896bb59bdcb15673e9`.
 
 ## Source Distributions
 
diff --git a/docs/versioning.md b/docs/versioning.md
index e822788..a6a6221 100644
--- a/docs/versioning.md
+++ b/docs/versioning.md
@@ -55,6 +55,7 @@ release to publish; it is **not** tied to the wirelog change.
 | PyreWire        | Minimum wirelog | Validated wirelog ref                      | Notes                   |
 | --------------- | --------------- | ------------------------------------------ | ----------------------- |
 | `1.0.0`         | `0.44.0`        | `272edf3a24b25676f12c4b843d55510f5048dd2f` | Validated against wirelog `v0.50.0` (peeled tag SHA); runtime minimum remains `0.44.0`. |
+| `1.0.1`         | `0.44.0`        | `0c6e0cdaee7db069be5d8d896bb59bdcb15673e9` | Validated against wirelog `v0.51.0` (peeled tag SHA); runtime minimum remains `0.44.0`. Bundled engine bumped to pick up the wirelog#914 single-body-rule derivation fix (#165). |
 
 The table grows with every release; the source of truth is the
 [CHANGELOG](https://github.com/semantic-reasoning/PyreWire/blob/main/CHANGELOG.md).
diff --git a/pyproject.toml b/pyproject.toml
index 6e3d721..17c067d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyrewire"
-version = "1.0.0"
+version = "1.0.1"
 description = "Python wrapper for wirelog - declarative dataflow analysis"
 readme = "README.md"
 requires-python = ">=3.11"
@@ -74,7 +74,7 @@ test-requires = ["pytest", "pytest-cov"]
 before-build = "python {project}/scripts/bundle_libwirelog.py"
 # Pin the wirelog source ref here too so the environment matches the
 # `WIRELOG_VERSION` used by the test-matrix workflow.
-environment = { WIRELOG_VERSION = "272edf3a24b25676f12c4b843d55510f5048dd2f" }
+environment = { WIRELOG_VERSION = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9" }
 
 [tool.cibuildwheel.linux]
 manylinux-x86_64-image = "manylinux_2_28"
@@ -83,7 +83,7 @@ before-all = """
   pip install meson && \
   WIRELOG_PREFIX=/wirelog-install bash {project}/scripts/build_wirelog.sh
 """
-environment = { WIRELOG_VERSION = "272edf3a24b25676f12c4b843d55510f5048dd2f", WIRELOG_PREFIX = "/wirelog-install", WIRELOG_LIB = "/wirelog-install/lib/libwirelog.so.1", LD_LIBRARY_PATH = "/wirelog-install/lib" }
+environment = { WIRELOG_VERSION = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9", WIRELOG_PREFIX = "/wirelog-install", WIRELOG_LIB = "/wirelog-install/lib/libwirelog.so.1", LD_LIBRARY_PATH = "/wirelog-install/lib" }
 # `auditwheel` bundles libwirelog.so.1 into the wheel and patches the
 # RPATH (#31). Without this every wheel would ship as a manylinux
 # wheel that immediately fails at import time on systems without the
@@ -96,7 +96,7 @@ before-all = """
   brew install ninja meson pkg-config && \
   WIRELOG_PREFIX=$HOME/wirelog-install bash {project}/scripts/build_wirelog.sh
 """
-environment = { WIRELOG_VERSION = "272edf3a24b25676f12c4b843d55510f5048dd2f", WIRELOG_PREFIX = "$HOME/wirelog-install", WIRELOG_LIB = "$HOME/wirelog-install/lib/libwirelog.1.dylib", DYLD_LIBRARY_PATH = "$HOME/wirelog-install/lib" }
+environment = { WIRELOG_VERSION = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9", WIRELOG_PREFIX = "$HOME/wirelog-install", WIRELOG_LIB = "$HOME/wirelog-install/lib/libwirelog.1.dylib", DYLD_LIBRARY_PATH = "$HOME/wirelog-install/lib" }
 # `delocate` is macOS's auditwheel equivalent — copies the dylib into
 # the wheel and rewrites install names so the bundled copy wins.
 repair-wheel-command = "DYLD_LIBRARY_PATH=$HOME/wirelog-install/lib delocate-wheel --require-archs {delocate_archs} -w {dest_dir} -v {wheel}"
@@ -104,7 +104,7 @@ repair-wheel-command = "DYLD_LIBRARY_PATH=$HOME/wirelog-install/lib delocate-whe
 [tool.cibuildwheel.windows]
 archs = ["AMD64"]
 before-all = "powershell {project}\\scripts\\build_wirelog.ps1"
-environment = { WIRELOG_VERSION = "272edf3a24b25676f12c4b843d55510f5048dd2f", WIRELOG_PREFIX = "C:/wirelog-install", WIRELOG_LIB = "C:/wirelog-install/bin/wirelog-1.dll" }
+environment = { WIRELOG_VERSION = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9", WIRELOG_PREFIX = "C:/wirelog-install", WIRELOG_LIB = "C:/wirelog-install/bin/wirelog-1.dll" }
 # `delvewheel` is the Windows analogue. The bundled DLL ends up in
 # `pyrewire/_lib/` and the loader (#2) finds it ahead of system paths.
 repair-wheel-command = "pip install delvewheel && delvewheel repair -w {dest_dir} --no-mangle-all --add-path C:/wirelog-install/bin {wheel}"
diff --git a/src/pyrewire/__init__.py b/src/pyrewire/__init__.py
index 4b78c0c..61c4ef2 100644
--- a/src/pyrewire/__init__.py
+++ b/src/pyrewire/__init__.py
@@ -1,6 +1,6 @@
 """PyreWire - Python wrapper for wirelog declarative dataflow analysis."""
 
-__version__ = "1.0.0"
+__version__ = "1.0.1"
 __author__ = "PyreWire Contributors"
 __license__ = "Apache-2.0 OR GPL-3.0-or-later"
 
diff --git a/tests/docs/test_support_matrix.py b/tests/docs/test_support_matrix.py
index 32a6f73..a7dfb0b 100644
--- a/tests/docs/test_support_matrix.py
+++ b/tests/docs/test_support_matrix.py
@@ -11,7 +11,7 @@
 
 yaml = pytest.importorskip("yaml")
 
-PINNED_WIRELOG_SHA = "272edf3a24b25676f12c4b843d55510f5048dd2f"
+PINNED_WIRELOG_SHA = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9"
 SUPPORTED_PYTHONS = ["3.11", "3.12", "3.13", "3.14"]
 SUPPORTED_CP_TAGS = ["cp311", "cp312", "cp313", "cp314"]
 SUPPORTED_RUNNERS = ["ubuntu-24.04", "macos-15", "windows-2025-vs2026"]
@@ -121,7 +121,7 @@ def test_support_wirelog_bundle_contract_matches_config_and_versioning():
     assert cibw["macos"]["environment"]["WIRELOG_VERSION"] == PINNED_WIRELOG_SHA
     assert cibw["windows"]["environment"]["WIRELOG_VERSION"] == PINNED_WIRELOG_SHA
 
-    assert "wirelog v0.50.0" in support
+    assert "wirelog v0.51.0" in support
     assert PINNED_WIRELOG_SHA in support
     assert "peeled SHA" in support
     assert "Wheels bundle" in versioning
diff --git a/tests/docs/test_versioning_contract.py b/tests/docs/test_versioning_contract.py
index ae2d617..1ba2577 100644
--- a/tests/docs/test_versioning_contract.py
+++ b/tests/docs/test_versioning_contract.py
@@ -10,7 +10,11 @@
 
 yaml = pytest.importorskip("yaml")
 
-PINNED_WIRELOG_SHA = "272edf3a24b25676f12c4b843d55510f5048dd2f"
+# The wirelog ref the current release bundles and validates against.
+PINNED_WIRELOG_SHA = "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9"
+# Historical pins kept frozen in the compatibility table, one per release.
+WIRELOG_SHA_100 = "272edf3a24b25676f12c4b843d55510f5048dd2f"
+WIRELOG_SHA_101 = PINNED_WIRELOG_SHA
 
 
 def _repo_root() -> Path:
@@ -32,12 +36,22 @@ def test_versioning_documents_100_wirelog_pin_and_runtime_floor():
     minimum, validated_ref, notes = _versioning_row("1.0.0")
 
     assert minimum == "`0.44.0`"
-    assert validated_ref == f"`{PINNED_WIRELOG_SHA}`"
+    assert validated_ref == f"`{WIRELOG_SHA_100}`"
     assert "v0.50.0" in notes
     assert "runtime minimum remains `0.44.0`" in notes
     assert "peeled tag SHA" in notes
 
 
+def test_versioning_documents_101_wirelog_pin_and_runtime_floor():
+    minimum, validated_ref, notes = _versioning_row("1.0.1")
+
+    assert minimum == "`0.44.0`"
+    assert validated_ref == f"`{WIRELOG_SHA_101}`"
+    assert "v0.51.0" in notes
+    assert "runtime minimum remains `0.44.0`" in notes
+    assert "peeled tag SHA" in notes
+
+
 def test_versioning_explains_sdist_and_wheel_wirelog_behavior():
     text = _read("docs/versioning.md")
 
@@ -49,7 +63,7 @@ def test_versioning_explains_sdist_and_wheel_wirelog_behavior():
     assert "validated ref" in text
 
 
-def test_wirelog_pins_and_loader_floor_match_100_contract():
+def test_wirelog_pins_and_loader_floor_match_current_contract():
     pyproject = tomllib.loads(_read("pyproject.toml"))
     ci = yaml.safe_load(_read(".github/workflows/ci.yml"))
     loader = _read("src/pyrewire/_ffi/_loader.py")
diff --git a/tests/test_changelog_format.py b/tests/test_changelog_format.py
index c53af47..2992204 100644
--- a/tests/test_changelog_format.py
+++ b/tests/test_changelog_format.py
@@ -163,11 +163,15 @@ def test_changelog_distinguishes_wirelog_runtime_floor_from_validated_ref():
     )
 
 
-def test_100_release_compare_links_are_tag_to_tag():
+def test_release_compare_links_are_tag_to_tag():
     changelog = (_repo_root() / "CHANGELOG.md").read_text(encoding="utf-8")
 
     assert (
-        "[Unreleased]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.0...HEAD"
+        "[Unreleased]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.1...HEAD"
+        in changelog
+    )
+    assert (
+        "[1.0.1]: https://github.com/semantic-reasoning/PyreWire/compare/v1.0.0...v1.0.1"
         in changelog
     )
     assert (
diff --git a/tests/test_ci_workflow.py b/tests/test_ci_workflow.py
index 161ed8a..4b97010 100644
--- a/tests/test_ci_workflow.py
+++ b/tests/test_ci_workflow.py
@@ -23,7 +23,7 @@ def _workflow() -> dict[str, Any]:
 def test_ci_default_wirelog_version_is_exact_sha():
     env = _workflow()["jobs"]["test"]["env"]
     default = str(env["WIRELOG_VERSION"])
-    assert "272edf3a24b25676f12c4b843d55510f5048dd2f" in default
+    assert "0c6e0cdaee7db069be5d8d896bb59bdcb15673e9" in default
 
 
 def test_ci_matrix_drops_python_310():
diff --git a/tests/test_release_metadata.py b/tests/test_release_metadata.py
index 30d13b2..e36a373 100644
--- a/tests/test_release_metadata.py
+++ b/tests/test_release_metadata.py
@@ -27,9 +27,9 @@ def _runtime_version_literal() -> str:
     return match.group(1)
 
 
-def test_project_and_runtime_versions_are_100():
-    assert _pyproject()["project"]["version"] == "1.0.0"
-    assert _runtime_version_literal() == "1.0.0"
+def test_project_and_runtime_versions_are_101():
+    assert _pyproject()["project"]["version"] == "1.0.1"
+    assert _runtime_version_literal() == "1.0.1"
 
 
 def test_project_classifiers_mark_stable_python_311_through_314():