From 708572969ddd8035b0894ad9021d782220482a12 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20H=C3=B8xbro=20Hansen?= <hoxbro@protonmail.com>
Date: Fri, 28 Aug 2026 10:22:53 +0200
Subject: [PATCH 1/2] compat: Python 3.15 (rc)

---
 .github/workflows/test.yaml |  4 ++--
 pixi.toml                   | 34 ++++++++++++++++++++++++++++++++++
 pyproject.toml              |  1 +
 3 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 30789729..255129a7 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -70,7 +70,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-310", "test-314"]
+              "environment": ["test-310", "test-314", "test-315"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'full' option
@@ -78,7 +78,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-310", "test-311", "test-312", "test-313", "test-314"]
+              "environment": ["test-310", "test-311", "test-312", "test-313", "test-314", "test-315"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'downstream' option
diff --git a/pixi.toml b/pixi.toml
index 4a3be7d6..7a68fbf6 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -44,6 +44,10 @@ no-default-feature = true
 features = ["py314t", "required", "test-core", "test-314t"]
 no-default-feature = true
 
+[environments.test-315]
+features = ["py315", "required", "test-core", "test-315"]
+no-default-feature = true
+
 [environments.test-core]
 features = ["py314", "required", "test-core"]
 no-default-feature = true
@@ -85,12 +89,14 @@ COVERAGE_CORE = "sysmon"
 
 [feature.py313.dependencies]
 python = "3.13.*"
+python-gil = "*"
 
 [feature.py313.activation.env]
 COVERAGE_CORE = "sysmon"
 
 [feature.py314.dependencies]
 python = "3.14.*"
+python-gil = "*"
 
 [feature.py314.activation.env]
 COVERAGE_CORE = "sysmon"
@@ -98,6 +104,17 @@ COVERAGE_CORE = "sysmon"
 [feature.py314t.dependencies]
 python-freethreading = "3.14.*"
 
+[feature.py315]
+channels = ["conda-forge/label/python_dev", "conda-forge/label/python_rc"]
+
+[feature.py315.dependencies]
+python = "3.15.*"
+_python_rc = "*"
+python-gil = "*"
+
+[feature.py315.activation.env]
+COVERAGE_CORE = "sysmon"
+
 [feature.example.dependencies]
 aiohttp = "*"
 pandas = "*"
@@ -157,6 +174,23 @@ odfpy = "*"
 xlrd = "*"
 # gmpy2 = "*"
 
+[feature.test-315.dependencies]
+cloudpickle = "*"
+ipython = "*"
+# jsonschema = "*"
+nest-asyncio = "*"
+# numpy = "*"
+odfpy = "*"
+# openpyxl = "*"
+# pandas = "*"
+# pyarrow = "*"
+# pytables = "*"
+xlrd = "*"
+# ipykernel = "!=7.0.0" # temp pin: https://github.com/ipython/ipykernel/issues/1445
+
+# [feature.test-315.target.unix.dependencies]
+# gmpy2 = "*"  # https://github.com/conda-forge/gmpy2-feedstock/issues/52
+
 [feature.test-example.tasks]
 test-example = 'pytest -n logical --dist loadscope --nbval-lax doc'
 
diff --git a/pyproject.toml b/pyproject.toml
index 1397daef..cb5dc03e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,6 +28,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Topic :: Scientific/Engineering",
     "Topic :: Software Development :: Libraries",
     "Typing :: Typed"

From e0b16bde26224039862a0f2fd04f45150773815f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20H=C3=B8xbro=20Hansen?= <hoxbro@protonmail.com>
Date: Fri, 28 Aug 2026 11:12:14 +0200
Subject: [PATCH 2/2] move into core for now

---
 .github/workflows/test.yaml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 255129a7..c5c56e58 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -70,7 +70,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-310", "test-314", "test-315"]
+              "environment": ["test-310", "test-314"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'full' option
@@ -78,7 +78,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-310", "test-311", "test-312", "test-313", "test-314", "test-315"]
+              "environment": ["test-310", "test-311", "test-312", "test-313", "test-314"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'downstream' option
@@ -130,7 +130,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        environment: ["test-core", "test-314t"]
+        environment: ["test-core", "test-314t", "test-315"]
     timeout-minutes: 30
     env:
       ENV: ${{ matrix.environment }}