Solcast · hugh-solcast · Jul 20, 2026 · Jul 20, 2026 · Jul 20, 2026 · Jul 20, 2026
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -5,9 +5,15 @@ on: [push]
 jobs:
   build:
     strategy:
+      max-parallel: 3
       matrix:
         os: ["ubuntu-latest", "macos-14", "windows-latest"]
-        python-version: ["3.8", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        exclude:
+          # pywinpty dropped Python 3.8 support in 2.0.15 (and dropped 3.8 wheels in 2.0.14),
+          # so the `all` extra deliberately fails to resolve on Windows with Python 3.8.
+          - os: "windows-latest"
+            python-version: "3.8"
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -25,4 +31,4 @@ jobs:
         env:
           SOLCAST_API_KEY: ${{ secrets.SOLCAST_API_KEY }}
         run: |
-          uv run --python ${{ matrix.python-version }} --group test pytest tests
+          uv run --python ${{ matrix.python-version }} --group test pytest -v tests
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+
+## [1.4.0] - 2026-07-20
+
+- Remove support for `solcast[all]` for Python 3.8 on Windows due to https://github.com/andfoy/pywinpty/issues/486. 
+Note: Plain `solcast` works as it has only uses python built-in packages.
+- Update 3.4 Rooftop PV Tuning notebook with more robust handling of azimuth and tilt values.
+- Update `test_list_pv_power_sites` to match change in API response format.
+
 ## [1.3.1] - 2025-11-19
 
 - Add the `Kimber` and `HSU` to live, forecast, and historic module

diff --git a/README.md b/README.md
@@ -38,6 +38,7 @@ ways in which the Solcast API may be used. To install these dependencies run
 pip install solcast[all]
 ```
 
+N.B. Installs for `[all]` using Python 3.8 and Windows will not work due to an [issue with pywinpty](https://github.com/andfoy/pywinpty/issues/486)
 
 ## Basic Usage
 

diff --git a/docs/notebooks/3.4 Rooftop PV Tuning.ipynb b/docs/notebooks/3.4 Rooftop PV Tuning.ipynb
diff --git a/pyproject.toml b/pyproject.toml
@@ -31,7 +31,6 @@ classifiers = [
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
 ]
-
 dynamic = ["version"]
 
 [project.urls]

diff --git a/solcast/__init__.py b/solcast/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "1.3.1"
+__version__ = "1.4.0"
 
 from . import (
     aggregations,

diff --git a/tests/test_pv_power_sites.py b/tests/test_pv_power_sites.py
@@ -7,8 +7,11 @@ def test_list_pv_power_sites():
     res = pv_power_sites.list_pv_power_sites()
 
     assert res.success
-    assert isinstance(res.to_dict(), list)
-    assert all(["resource_id" in resource for resource in res.to_dict()])
+    assert (
+        len({"offset", "total", "results"}.symmetric_difference(res.to_dict().keys()))
+        == 0
+    )
+    assert all(["resource_id" in resource for resource in res.to_dict()["results"]])
     with pytest.raises(
         AttributeError, match="'Response' object has no attribute 'to_pandas'"
     ):
-Original file line number
+Diff line change
@@ Expand Up @@
     pip install solcast[all]
     ```
+    N.B. Installs for `[all]` using Python 3.8 and Windows will not work due to an [issue with pywinpty](https://github.com/andfoy/pywinpty/issues/486)
     ## Basic Usage
@@ Expand Down @@