Require spm-calculator 1.1 for the 2022–2036 SPM forecast

.github/release-lock.md

@@ -101,11 +101,11 @@ The opt-in probe creates an isolated, minimal project with a standard PyPI
 dependency and exercises actual uv locking. CI enables it. These commands do not
 install or import the country model.
 
-For the SPM integration, `spm-calculator` 1.0.0 reached PyPI on 2026-09-11, and
+For the SPM integration, `spm-calculator` 1.1.0 reached PyPI on 2026-11-02, and
 the committed country lock resolves it from `https://pypi.org/simple` with sdist
 and wheel SHA-256 hashes, so `--committed` passes on the committed files.
-`pyproject.toml` requires `>=1.0.0,<=1.0.0.post1` and the lock pins 1.0.0;
-moving that pin to the post-release is an ordinary reviewed lock change. This
+`pyproject.toml` requires `>=1.1.0,<1.2` and the lock pins 1.1.0; moving to a
+later 1.1.x release is an ordinary reviewed lock change. This
 guard validates dependency sources, artifact URLs and hashes, never a version
 string, so the calculator requirement is held by `pyproject.toml` and review
 rather than by `release_lock.py`. A stale root version or an older calculator

README.md

@@ -12,7 +12,7 @@ PolicyEngine US is a microsimulation model of the US state and federal tax and b
 PolicyEngine US supports Python 3.11 through 3.14 and requires pandas 3 or
 later. To install, run `pip install policyengine-us`.
 
-This release requires `spm-calculator>=1.0.0,<=1.0.0.post1` (the canonical SPM threshold API).
+This release requires `spm-calculator>=1.1.0,<1.2` (the canonical SPM threshold API, covering 2022–2036).
 Previously published country versions retain their original dependency metadata;
 when reproducing one of those versions, include the compatible calculator
 explicitly, for example:

changelog.d/spm-calculator-1.1.changed.md

@@ -0,0 +1 @@
+Require spm-calculator 1.1, whose canonical forecast covers 2022–2036, so SPM thresholds and SPM resources calculate for 2036.

docs/spm.md

@@ -3,7 +3,7 @@
 The country model uses the installed `spm-calculator` artifact for all five SPM
 measurement amounts. It does not extrapolate thresholds with country CPI or income
 parameters. Each supported year and scenario comes from the verified artifact.
-The installed 1.0.0 artifact covers 2022 through 2035; unavailable years fail.
+The installed 1.1.0 artifact covers 2022 through 2036; unavailable years fail.
 Taxes, benefits, resources and the housing-assistance cap
 remain country-model formulas. General household benefits and CBO transfer
 aggregates count actual `housing_assistance`; only SPM resources count

policyengine_us/tests/policy/baseline/household/income/spm_unit/test_spm_unit_spm_threshold.py

@@ -74,7 +74,7 @@ def canonical(forecast, year, tenure, *, adults=2, children=2, county=None):
 )
 def test_every_amount_uses_canonical_final_value_for_every_supported_year(tenure):
     forecast = load_forecast()
-    assert list(forecast.years) == list(range(2022, 2036))
+    assert list(forecast.years) == list(range(2022, 2037))
     # Explicit period inputs cover the artifact, including its historical years.
     situation = household(county="06037", tenure=tenure)
     for person in situation["people"].values():
@@ -164,10 +164,11 @@ def test_unavailable_selection_or_consumer_extrapolation_rejected(config):
         create_spm_provider(config)
 
 
-def test_unknown_year_has_no_country_cpi_extrapolation():
+@pytest.mark.parametrize("year", [2037, 2099])
+def test_unknown_year_has_no_country_cpi_extrapolation(year):
     simulation = Simulation(situation=household(county="06037"))
     with pytest.raises(ValueError, match="no entry"):
-        simulation.calculate("spm_unit_spm_threshold", 2099)
+        simulation.calculate("spm_unit_spm_threshold", year)
 
 
 @pytest.mark.parametrize(

pyproject.toml

@@ -24,7 +24,7 @@ dependencies = [
     # extension and is available on every supported Python version.
     "pandas>=3.0",
     "policyengine-core>=3.33.1",
-    "spm-calculator>=1.0.0,<=1.0.0.post1",
+    "spm-calculator>=1.1.0,<1.2",
     "tables>=3.9",
     "tqdm>=4.67.1",
 ]