MaxGhenis · Oct 7, 2026 · Oct 7, 2026 · Oct 8, 2026
diff --git a/changelog.d/554.changed.md b/changelog.d/554.changed.md
@@ -0,0 +1 @@
+Certify policyengine-uk-data 1.58.0 (`enhanced_frs_2024_25`) as the UK default, and pin policyengine-uk 2.123.4 and policyengine-core 3.32.21. The data was built with policyengine-uk 2.122.2 and core 3.32.13; the publisher's compatibility claim in the 1.58.0 release manifest covers the newer versions. UK results change with the new data release.
diff --git a/docs/households.md b/docs/households.md
@@ -106,7 +106,7 @@ separate benefit inputs; they do not override SPM measurement composition.
 
 These changes require the coordinated canonical country/calculator bundle, which
 the packaged production manifest now pins and certifies: `policyengine-us`
-2.2.1, `policyengine-core` 3.32.10, `spm-calculator` 1.0.0, and the US data
+2.2.1, `policyengine-core` 3.32.21, `spm-calculator` 1.0.0, and the US data
 release `populace-us-2024-spm-20260915`. Local-wheel development manifest
 fixtures remain explicitly uncertified. The measurement receipt identifies a
 calculation; it does not certify a population dataset or establish publication

diff --git a/pyproject.toml b/pyproject.toml
@@ -40,17 +40,17 @@ graph = [
     "networkx>=3.0",
 ]
 models = [
-    "policyengine-core==3.32.10",
+    "policyengine-core==3.32.21",
     "policyengine-us==2.2.1",
-    "policyengine-uk==2.102.3",
+    "policyengine-uk==2.123.4",
     "spm-calculator==1.0.0",
 ]
 uk = [
-    "policyengine-core==3.32.10",
-    "policyengine-uk==2.102.3",
+    "policyengine-core==3.32.21",
+    "policyengine-uk==2.123.4",
 ]
 us = [
-    "policyengine-core==3.32.10",
+    "policyengine-core==3.32.21",
     "policyengine-us==2.2.1",
     "spm-calculator==1.0.0",
 ]
@@ -69,9 +69,9 @@ dev = [
     "mypy>=1.11.0",
     "pytest-cov>=5.0.0",
     "hypothesis>=6.100.0",
-    "policyengine-core==3.32.10",
+    "policyengine-core==3.32.21",
     "policyengine-us==2.2.1",
-    "policyengine-uk==2.102.3",
+    "policyengine-uk==2.123.4",
     "spm-calculator==1.0.0",
 ]
 

diff --git a/src/policyengine/data/bundle/manifest.json b/src/policyengine/data/bundle/manifest.json
@@ -16,99 +16,99 @@
   },
   "data_releases": {
     "uk": {
-      "build_id": "policyengine-uk-data-1.56.16",
+      "build_id": "policyengine-uk-data-1.58.0",
       "bundle_id": "uk-6.2.2",
       "certification": {
-        "built_with_model_git_sha": "12a1e028afeef08d8b2d74ee03fd9de3a78b2dd3",
-        "built_with_model_version": "2.89.2",
+        "built_with_model_git_sha": "4cbedbecca352f52dffe47e849553c2759a00711",
+        "built_with_model_version": "2.122.2",
         "certified_by": "policyengine.py bundle certification",
-        "certified_for_model_version": "2.102.3",
+        "certified_for_model_version": "2.123.4",
         "compatibility_basis": "legacy_compatible_model_package",
-        "data_build_fingerprint": "sha256:6bfff835b504094c05342d2b4d770d2d94c8c1adcb15c4468931f53b21a89ea9",
-        "data_build_id": "policyengine-uk-data-1.56.16"
+        "data_build_fingerprint": "sha256:c094d7006fdd81df220090284212f16bbffb15624643bc442c4bb3e1b1e5dac8",
+        "data_build_id": "policyengine-uk-data-1.58.0"
       },
       "certified_data_artifact": {
-        "build_id": "policyengine-uk-data-1.56.16",
+        "build_id": "policyengine-uk-data-1.58.0",
         "data_package": {
           "name": "policyengine-uk-data",
-          "version": "1.56.16"
+          "version": "1.58.0"
         },
         "dataset": "enhanced_frs_2024_25",
-        "sha256": "e433e532b17bd8ce76030156285816e33d44e93edabd2204adbef71d19a68712",
-        "uri": "hf://policyengine/policyengine-uk-data-private/enhanced_frs_2024_25.h5@1.56.16"
+        "sha256": "5ba399ea5ab9a6c7d4e9aaf6c623080beb34d9ad5f330f6244dbad72b8d960b6",
+        "uri": "hf://policyengine/policyengine-uk-data-private/enhanced_frs_2024_25.h5@1.58.0"
       },
       "country_id": "uk",
       "data_package": {
         "name": "policyengine-uk-data",
-        "release_manifest_path": "releases/1.56.16/release_manifest.json",
-        "release_manifest_revision": "78788372fec47fc8df835bd32307ef61eaed83c2",
+        "release_manifest_path": "releases/1.58.0/release_manifest.json",
+        "release_manifest_revision": "c30504aa6892f888c36a92f9f41b98cca6c21808",
         "repo_id": "policyengine/policyengine-uk-data-private",
         "repo_type": "model",
-        "version": "1.56.16"
+        "version": "1.58.0"
       },
       "data_producer": "populace",
       "datasets": {
         "enhanced_frs_2024_25": {
           "path": "enhanced_frs_2024_25.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "e433e532b17bd8ce76030156285816e33d44e93edabd2204adbef71d19a68712"
+          "revision": "1.58.0",
+          "sha256": "5ba399ea5ab9a6c7d4e9aaf6c623080beb34d9ad5f330f6244dbad72b8d960b6"
         },
         "enhanced_frs_2024_25_tiny": {
           "path": "enhanced_frs_2024_25_tiny.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "6cbbda7eef1b0b16d62e24a3099dc7959906287d659868d31aa7fc82af598871"
+          "revision": "1.58.0",
+          "sha256": "a2e938b6c68952dc6fa3af998501371d9014b66263baef262d4f649fe6f19dd5"
         },
         "frs_2024_25": {
           "path": "frs_2024_25.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "d4d29901d7ea0c1f636060d4177a411a39c1977fa9fd23a61af3bb0f030769bd"
+          "revision": "1.58.0",
+          "sha256": "2ec0ea6c10bc82d030a071474c1b376780ea88053e1659d784b4253662341634"
         },
         "frs_2024_25_tiny": {
           "path": "frs_2024_25_tiny.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "74ca086be959b2942ecbf7755034d94dc6a817f4d9d54f2585a1c6df849d9588"
+          "revision": "1.58.0",
+          "sha256": "e91d17c4bae92067222272da33918f15027f65a58e3765c7bdff8aa119df914e"
         },
         "local_authority_weights": {
           "path": "local_authority_weights.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "6d634d69fb472b80cc17ffe696e028c54d7b739166bb7d9a57860f9d73537aa5"
+          "revision": "1.58.0",
+          "sha256": "0f8e43877f13cea86ea7bd78ce938769d0c2746ac0b191be661c25608aa786fc"
         },
         "local_geography_weights": {
           "path": "local_geography_weights.csv.gz",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "6f623e277089d06c2c50ec3d8ab766635f695c8579d360410e3dcb4214ea9709"
+          "revision": "1.58.0",
+          "sha256": "2c4026139eb69d26af5a0ddad7e7fe9ee981b89a0968e77a5f41820091f641c2"
         },
         "parliamentary_constituency_weights": {
           "path": "parliamentary_constituency_weights.h5",
           "repo_id": "policyengine/policyengine-uk-data-private",
-          "revision": "1.56.16",
-          "sha256": "6870c36072a0c34d2e6ce3ebf58664b7932ca46a9e3808d387988773e63b66d5"
+          "revision": "1.58.0",
+          "sha256": "da3d021bf6cd57f06e878094e48524a6a691207231158d9a109da73ea459e900"
         }
       },
       "default_dataset": "enhanced_frs_2024_25",
-      "default_dataset_uri": "hf://policyengine/policyengine-uk-data-private/enhanced_frs_2024_25.h5@1.56.16",
+      "default_dataset_uri": "hf://policyengine/policyengine-uk-data-private/enhanced_frs_2024_25.h5@1.58.0",
       "model_package": {
         "name": "policyengine-uk",
-        "sha256": "f02a76712a3edf9983c713c1db42e9653a6e974e4ce335dd4b5676bbc2bcd636",
-        "version": "2.102.3",
-        "wheel_url": "https://files.pythonhosted.org/packages/37/e6/e8d9069d498f1510a1380f24a78e957902d01f00b10248c146d6710d5b37/policyengine_uk-2.102.3-py3-none-any.whl"
+        "sha256": "f0261a0afa905196742b5aa9aac776c923daeed75d5815797acb192a65d83acf",
+        "version": "2.123.4",
+        "wheel_url": "https://files.pythonhosted.org/packages/6b/4c/bd5e453ffe516752a171b4ca27cfa036eefc8108aa9bfd0e364eb73c672f/policyengine_uk-2.123.4-py3-none-any.whl"
       },
       "policyengine_version": "6.2.2",
       "region_datasets": {
         "national": {
           "path_template": "enhanced_frs_2024_25.h5"
         }
       },
-      "release_manifest_uri": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/78788372fec47fc8df835bd32307ef61eaed83c2/releases/1.56.16/release_manifest.json",
+      "release_manifest_uri": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/c30504aa6892f888c36a92f9f41b98cca6c21808/releases/1.58.0/release_manifest.json",
       "schema_version": 1,
-      "source_manifest_uri": "hf://model/policyengine/policyengine-uk-data-private@78788372fec47fc8df835bd32307ef61eaed83c2/releases/1.56.16/release_manifest.json",
-      "version": "policyengine-uk-data-1.56.16"
+      "source_manifest_uri": "hf://model/policyengine/policyengine-uk-data-private@c30504aa6892f888c36a92f9f41b98cca6c21808/releases/1.58.0/release_manifest.json",
+      "version": "policyengine-uk-data-1.58.0"
     },
     "us": {
       "build_id": "populace-us-2024-spm-20260915",
@@ -302,18 +302,18 @@
     },
     "policyengine-core": {
       "import_name": "policyengine_core",
-      "install_requirement": "policyengine-core==3.32.10",
+      "install_requirement": "policyengine-core==3.32.21",
       "name": "policyengine-core",
       "role": "runtime_dependency",
-      "version": "3.32.10"
+      "version": "3.32.21"
     },
     "policyengine-uk": {
       "country": "uk",
       "import_name": "policyengine_uk",
-      "install_requirement": "policyengine-uk==2.102.3",
+      "install_requirement": "policyengine-uk==2.123.4",
       "name": "policyengine-uk",
       "role": "country_model",
-      "version": "2.102.3"
+      "version": "2.123.4"
     },
     "policyengine-us": {
       "country": "us",

diff --git a/src/policyengine/data/bundle/uk.trace.tro.jsonld b/src/policyengine/data/bundle/uk.trace.tro.jsonld
@@ -17,7 +17,7 @@
         "schema:name": "PolicyEngine",
         "schema:url": "https://policyengine.org"
       },
-      "schema:dateCreated": "2026-08-18T14:20:32.100961Z",
+      "schema:dateCreated": "2026-10-07T17:31:53.189867Z",
       "schema:description": "TRACE TRO for certified runtime bundle uk-6.2.2 covering the bundle manifest, the certified dataset artifact, the country model wheel, and the country data release manifest when it is available.",
       "schema:name": "policyengine uk certified bundle TRO",
       "trov:createdWith": {
@@ -45,23 +45,23 @@
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/data_release_manifest"
               },
-              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/78788372fec47fc8df835bd32307ef61eaed83c2/releases/1.56.16/release_manifest.json"
+              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/c30504aa6892f888c36a92f9f41b98cca6c21808/releases/1.58.0/release_manifest.json"
             },
             {
               "@id": "arrangement/1/location/dataset",
               "@type": "trov:ArtifactLocation",
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/dataset"
               },
-              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/1.56.16/enhanced_frs_2024_25.h5"
+              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-uk-data-private/resolve/1.58.0/enhanced_frs_2024_25.h5"
             },
             {
               "@id": "arrangement/1/location/model_wheel",
               "@type": "trov:ArtifactLocation",
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/model_wheel"
               },
-              "trov:hasLocation": "https://files.pythonhosted.org/packages/37/e6/e8d9069d498f1510a1380f24a78e957902d01f00b10248c146d6710d5b37/policyengine_uk-2.102.3-py3-none-any.whl"
+              "trov:hasLocation": "https://files.pythonhosted.org/packages/6b/4c/bd5e453ffe516752a171b4ca27cfa036eefc8108aa9bfd0e364eb73c672f/policyengine_uk-2.123.4-py3-none-any.whl"
             }
           ]
         }
@@ -75,52 +75,52 @@
             "@type": "trov:ResearchArtifact",
             "schema:name": "policyengine.py bundle manifest for uk",
             "trov:mimeType": "application/json",
-            "trov:sha256": "f7563d813c99ae69da849631d57e498703ce338490aac1a17f127e17c15d6f5f"
+            "trov:sha256": "882b8c742071a7f25d32275f7795df03e15ac71f0bdead39a8b0d0b0ded51211"
           },
           {
             "@id": "composition/1/artifact/data_release_manifest",
             "@type": "trov:ResearchArtifact",
-            "schema:name": "policyengine-uk-data release manifest 1.56.16",
+            "schema:name": "policyengine-uk-data release manifest 1.58.0",
             "trov:mimeType": "application/json",
-            "trov:sha256": "cb61e3d897fbfa0cc079edc140aebc8947b1a685f581a420de91170ce2686155"
+            "trov:sha256": "e14b7c973f320415af53751aae9ae98cdfba7cbabe2513b7c26e129eb99b1618"
           },
           {
             "@id": "composition/1/artifact/dataset",
             "@type": "trov:ResearchArtifact",
             "schema:name": "enhanced_frs_2024_25",
             "trov:mimeType": "application/x-hdf5",
-            "trov:sha256": "e433e532b17bd8ce76030156285816e33d44e93edabd2204adbef71d19a68712"
+            "trov:sha256": "5ba399ea5ab9a6c7d4e9aaf6c623080beb34d9ad5f330f6244dbad72b8d960b6"
           },
           {
             "@id": "composition/1/artifact/model_wheel",
             "@type": "trov:ResearchArtifact",
-            "schema:name": "policyengine-uk==2.102.3 wheel",
+            "schema:name": "policyengine-uk==2.123.4 wheel",
             "trov:mimeType": "application/zip",
-            "trov:sha256": "f02a76712a3edf9983c713c1db42e9653a6e974e4ce335dd4b5676bbc2bcd636"
+            "trov:sha256": "f0261a0afa905196742b5aa9aac776c923daeed75d5815797acb192a65d83acf"
           }
         ],
         "trov:hasFingerprint": {
           "@id": "composition/1/fingerprint",
           "@type": "trov:CompositionFingerprint",
-          "trov:sha256": "ac5ce54dbdff4fc4aeeb67f89a3ec0455b8bda26c87a5744adf34d5a77fe6c97"
+          "trov:sha256": "40de7e21721476f4944e0ff52e00a3e2188ebe805e533305e7aded72c105f677"
         }
       },
       "trov:hasPerformance": {
         "@id": "trp/1",
         "@type": "trov:TransparentResearchPerformance",
-        "pe:builtWithModelGitSha": "12a1e028afeef08d8b2d74ee03fd9de3a78b2dd3",
-        "pe:builtWithModelVersion": "2.89.2",
+        "pe:builtWithModelGitSha": "4cbedbecca352f52dffe47e849553c2759a00711",
+        "pe:builtWithModelVersion": "2.122.2",
         "pe:certifiedBy": "policyengine.py bundle certification",
-        "pe:certifiedForModelVersion": "2.102.3",
+        "pe:certifiedForModelVersion": "2.123.4",
         "pe:compatibilityBasis": "legacy_compatible_model_package",
-        "pe:dataBuildFingerprint": "sha256:6bfff835b504094c05342d2b4d770d2d94c8c1adcb15c4468931f53b21a89ea9",
-        "pe:dataBuildId": "policyengine-uk-data-1.56.16",
+        "pe:dataBuildFingerprint": "sha256:c094d7006fdd81df220090284212f16bbffb15624643bc442c4bb3e1b1e5dac8",
+        "pe:dataBuildId": "policyengine-uk-data-1.58.0",
         "pe:emittedIn": "repository-bundle",
-        "rdfs:comment": "Certification of build policyengine-uk-data-1.56.16 for policyengine-uk 2.102.3.",
+        "rdfs:comment": "Certification of build policyengine-uk-data-1.58.0 for policyengine-uk 2.123.4.",
         "trov:accessedArrangement": {
           "@id": "arrangement/1"
         },
-        "trov:startedAtTime": "2026-08-18T14:20:32.100961Z",
+        "trov:startedAtTime": "2026-10-07T17:31:53.189867Z",
         "trov:wasConductedBy": {
           "@id": "trs"
         }

diff --git a/src/policyengine/data/bundle/us.trace.tro.jsonld b/src/policyengine/data/bundle/us.trace.tro.jsonld
@@ -74,7 +74,7 @@
             "@type": "trov:ResearchArtifact",
             "schema:name": "policyengine.py bundle manifest for us",
             "trov:mimeType": "application/json",
-            "trov:sha256": "f7563d813c99ae69da849631d57e498703ce338490aac1a17f127e17c15d6f5f"
+            "trov:sha256": "882b8c742071a7f25d32275f7795df03e15ac71f0bdead39a8b0d0b0ded51211"
           },
           {
             "@id": "composition/1/artifact/data_release_manifest",
@@ -101,7 +101,7 @@
         "trov:hasFingerprint": {
           "@id": "composition/1/fingerprint",
           "@type": "trov:CompositionFingerprint",
-          "trov:sha256": "f9c4770614de85fadde53b9f18d3f05f7d2e10962ee0b67ca99d659938bdee2e"
+          "trov:sha256": "ecc5f0a1487385e421ddf71396b6c469c696ce881243a9d155c2ef194fc5d4d0"
         }
       },
       "trov:hasPerformance": {

diff --git a/tests/fixtures/household_calculator_snapshots/uk_couple_two_kids.json b/tests/fixtures/household_calculator_snapshots/uk_couple_two_kids.json
@@ -13,13 +13,13 @@
   "household.equiv_hbai_household_net_income": 52510.29,
   "household.fuel_duty": 0.0,
   "household.hbai_household_net_income": 73514.4,
-  "household.household_benefits": 5889.59,
+  "household.household_benefits": 9441.78,
   "household.household_count_people": 4.0,
-  "household.household_gross_income": 95889.59,
+  "household.household_gross_income": 99441.78,
   "household.household_id": 0.0,
   "household.household_income_decile": 10.0,
   "household.household_market_income": 90000.0,
-  "household.household_net_income": 76886.55,
+  "household.household_net_income": 80438.73,
   "household.household_tax": 19003.05,
   "household.household_wealth_decile": 10.0,
   "household.household_weight": 1.0,
@@ -46,7 +46,7 @@
   "person[0].is_child": 0.0,
   "person[0].is_male": 1.0,
   "person[0].national_insurance": 3110.6,
-  "person[0].ni_employer": 7501.2,
+  "person[0].ni_employer": 7500.0,
   "person[0].pension_credit": 0.0,
   "person[0].pension_income": 0.0,
   "person[0].person_id": 0.0,
@@ -75,7 +75,7 @@
   "person[1].is_child": 0.0,
   "person[1].is_male": 1.0,
   "person[1].national_insurance": 1794.4,
-  "person[1].ni_employer": 4501.2,
+  "person[1].ni_employer": 4500.0,
   "person[1].pension_credit": 0.0,
   "person[1].pension_income": 0.0,
   "person[1].person_id": 0.0,

diff --git a/tests/fixtures/household_calculator_snapshots/uk_model_surface.json b/tests/fixtures/household_calculator_snapshots/uk_model_surface.json
@@ -5,7 +5,7 @@
   "has_income_tax": true,
   "has_region_registry": true,
   "model_package_name": "policyengine-uk",
-  "num_parameters_bucketed_100s": 26,
-  "num_variables_bucketed_100s": 9,
+  "num_parameters_bucketed_100s": 32,
+  "num_variables_bucketed_100s": 10,
   "region_registry_country": "uk"
 }
diff --git a/tests/fixtures/household_calculator_snapshots/uk_single_adult_employment_income.json b/tests/fixtures/household_calculator_snapshots/uk_single_adult_employment_income.json
@@ -46,7 +46,7 @@
   "person[0].is_child": 0.0,
   "person[0].is_male": 1.0,
   "person[0].national_insurance": 1394.4,
-  "person[0].ni_employer": 3751.2,
+  "person[0].ni_employer": 3750.0,
   "person[0].pension_credit": 0.0,
   "person[0].pension_income": 0.0,
   "person[0].person_id": 0.0,

diff --git a/tests/fixtures/household_calculator_snapshots/uk_single_parent_one_child.json b/tests/fixtures/household_calculator_snapshots/uk_single_parent_one_child.json
@@ -46,7 +46,7 @@
   "person[0].is_child": 0.0,
   "person[0].is_male": 1.0,
   "person[0].national_insurance": 994.4,
-  "person[0].ni_employer": 3001.2,
+  "person[0].ni_employer": 3000.0,
   "person[0].pension_credit": 0.0,
   "person[0].pension_income": 0.0,
   "person[0].person_id": 0.0,
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Certify policyengine-uk-data 1.58.0 (`enhanced_frs_2024_25`) as the UK default, and pin policyengine-uk 2.123.4 and policyengine-core 3.32.21. The data was built with policyengine-uk 2.122.2 and core 3.32.13; the publisher's compatibility claim in the 1.58.0 release manifest covers the newer versions. UK results change with the new data release.