Update PolicyEngine Household API

Author: hua7450

CHANGELOG.md

@@ -1,3 +1,10 @@
+## [0.20.3] - 2026-05-18
+
+### Changed
+
+- Enable Modal `@modal.concurrent(max_inputs=5, target_inputs=4)` (5x warm-pool capacity, autoscaler aims for 80% steady-state utilisation, no new container cost) and cap autoscale at `max_containers=100` to prevent runaway scaling.
+
+
 ## [0.20.2] - 2026-05-18
 
 ### Fixed

changelog.d/1533.changed.md

@@ -1,6 +1,6 @@
 [project]
 name = "policyengine-household-api"
-version = "0.20.2"
+version = "0.20.3"
 description = "PolicyEngine Household API"
 readme = "README.md"
 authors = [