diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index 136fe2d8..85d5e88a 100755
--- a/.azure-pipelines/azure-pipelines-osx.yml
+++ b/.azure-pipelines/azure-pipelines-osx.yml
@@ -5,7 +5,7 @@
 jobs:
 - job: osx
   pool:
-    vmImage: macOS-12
+    vmImage: macOS-13
   strategy:
     matrix:
       osx_64_numpy2.0python3.10.____cpython:
diff --git a/.azure-pipelines/azure-pipelines-win.yml b/.azure-pipelines/azure-pipelines-win.yml
index d038ffd4..9b07e042 100755
--- a/.azure-pipelines/azure-pipelines-win.yml
+++ b/.azure-pipelines/azure-pipelines-win.yml
@@ -23,31 +23,16 @@ jobs:
   timeoutInMinutes: 360
   variables:
     CONDA_BLD_PATH: C:\\bld\\
+    MINIFORGE_HOME: C:\Miniforge
     UPLOAD_TEMP: D:\\tmp
 
   steps:
 
-    - task: PythonScript@0
-      displayName: 'Download Miniforge'
-      inputs:
-        scriptSource: inline
-        script: |
-          import urllib.request
-          url = 'https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-Windows-x86_64.exe'
-          path = r"$(Build.ArtifactStagingDirectory)/Miniforge.exe"
-          urllib.request.urlretrieve(url, path)
-
-    - script: |
-        start /wait "" %BUILD_ARTIFACTSTAGINGDIRECTORY%\Miniforge.exe /InstallationType=JustMe /RegisterPython=0 /S /D=C:\Miniforge
-      displayName: Install Miniforge
-
-    - powershell: Write-Host "##vso[task.prependpath]C:\Miniforge\Scripts"
-      displayName: Add conda to PATH
-
     - script: |
         call ".scripts\run_win_build.bat"
       displayName: Run Windows build
       env:
+        MINIFORGE_HOME: $(MINIFORGE_HOME)
         PYTHONUNBUFFERED: 1
         CONFIG: $(CONFIG)
         CI: azure
diff --git a/.ci_support/linux_64_numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_64_numpy2.0python3.10.____cpython.yaml
index f5fb124f..5571d209 100644
--- a/.ci_support/linux_64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_64_numpy2.0python3.10.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_64_numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_64_numpy2.0python3.11.____cpython.yaml
index b880ca07..e11298c9 100644
--- a/.ci_support/linux_64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_64_numpy2.0python3.11.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_64_numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_64_numpy2.0python3.12.____cpython.yaml
index 33a3fa15..11860ceb 100644
--- a/.ci_support/linux_64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_64_numpy2.0python3.12.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_64_numpy2.1python3.13.____cp313.yaml b/.ci_support/linux_64_numpy2.1python3.13.____cp313.yaml
index eaf01ad1..a75e0cde 100644
--- a/.ci_support/linux_64_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/linux_64_numpy2.1python3.13.____cp313.yaml
@@ -11,7 +11,7 @@ c_stdlib_version:
 cdt_name:
 - cos7
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - linux-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_aarch64_numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_aarch64_numpy2.0python3.10.____cpython.yaml
index 6c1c0f6f..0fc3aa51 100644
--- a/.ci_support/linux_aarch64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_aarch64_numpy2.0python3.10.____cpython.yaml
@@ -42,8 +42,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-aarch64
 zip_keys:
@@ -54,5 +52,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_aarch64_numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_aarch64_numpy2.0python3.11.____cpython.yaml
index 095b3c11..c5a77a3e 100644
--- a/.ci_support/linux_aarch64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_aarch64_numpy2.0python3.11.____cpython.yaml
@@ -42,8 +42,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-aarch64
 zip_keys:
@@ -54,5 +52,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_aarch64_numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_aarch64_numpy2.0python3.12.____cpython.yaml
index 6aa37c2f..295529c6 100644
--- a/.ci_support/linux_aarch64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_aarch64_numpy2.0python3.12.____cpython.yaml
@@ -42,8 +42,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-aarch64
 zip_keys:
@@ -54,5 +52,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_aarch64_numpy2.1python3.13.____cp313.yaml b/.ci_support/linux_aarch64_numpy2.1python3.13.____cp313.yaml
index aaf0268b..c88bb641 100644
--- a/.ci_support/linux_aarch64_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/linux_aarch64_numpy2.1python3.13.____cp313.yaml
@@ -15,7 +15,7 @@ cdt_arch:
 cdt_name:
 - cos7
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
@@ -42,8 +42,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - linux-aarch64
 zip_keys:
@@ -54,5 +52,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_ppc64le_numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_ppc64le_numpy2.0python3.10.____cpython.yaml
index 5f2d4eef..3762177a 100644
--- a/.ci_support/linux_ppc64le_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_ppc64le_numpy2.0python3.10.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-ppc64le
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_ppc64le_numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_ppc64le_numpy2.0python3.11.____cpython.yaml
index 29fabe9d..b0a2b84e 100644
--- a/.ci_support/linux_ppc64le_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_ppc64le_numpy2.0python3.11.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-ppc64le
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_ppc64le_numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_ppc64le_numpy2.0python3.12.____cpython.yaml
index 877c5310..55b122a4 100644
--- a/.ci_support/linux_ppc64le_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_ppc64le_numpy2.0python3.12.____cpython.yaml
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - linux-ppc64le
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/linux_ppc64le_numpy2.1python3.13.____cp313.yaml b/.ci_support/linux_ppc64le_numpy2.1python3.13.____cp313.yaml
index 737d38b5..d032dc6b 100644
--- a/.ci_support/linux_ppc64le_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/linux_ppc64le_numpy2.1python3.13.____cp313.yaml
@@ -11,7 +11,7 @@ c_stdlib_version:
 cdt_name:
 - cos7
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
@@ -38,8 +38,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - linux-ppc64le
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - cdt_name
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/migrations/flang19.yaml b/.ci_support/migrations/flang19.yaml
new file mode 100644
index 00000000..5d8e2dd6
--- /dev/null
+++ b/.ci_support/migrations/flang19.yaml
@@ -0,0 +1,13 @@
+__migrator:
+  kind: version
+  migration_number: 1
+  build_number: 1
+  commit_message: Rebuild for flang 19
+  platform_allowlist:
+    - win-64
+  override_cbc_keys:
+    - fortran_compiler_stub
+migrator_ts: 1722763680.3089325
+
+fortran_compiler_version:      # [win64]
+  - 19                         # [win64]
diff --git a/.ci_support/migrations/python313.yaml b/.ci_support/migrations/python313.yaml
index f0cf696d..798be65e 100644
--- a/.ci_support/migrations/python313.yaml
+++ b/.ci_support/migrations/python313.yaml
@@ -18,11 +18,6 @@ __migrator:
             - 3.7.* *_73_pypy
             - 3.8.* *_73_pypy
             - 3.9.* *_73_pypy
-        channel_sources:
-            # doesn't seem to work properly when using additional_zip_keys
-            - conda-forge
-            - conda-forge/label/python_rc,conda-forge
-            - conda-forge/label/python_rc,conda-forge/label/llvm_rc,conda-forge
     paused: false
     longterm: true
     pr_limit: 20
@@ -42,8 +37,6 @@ __migrator:
 
 python:
 - 3.13.* *_cp313
-channel_sources:
-- conda-forge/label/python_rc,conda-forge
 # additional entries to add for zip_keys
 numpy:
 - 2.1
diff --git a/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
index 72d3083a..de396e40 100644
--- a/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
index 64aa3b51..6fb7409c 100644
--- a/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
index e5a7eac3..f0c994d7 100644
--- a/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_64_numpy2.1python3.13.____cp313.yaml b/.ci_support/osx_64_numpy2.1python3.13.____cp313.yaml
index ed5b4498..edabff85 100644
--- a/.ci_support/osx_64_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/osx_64_numpy2.1python3.13.____cp313.yaml
@@ -7,19 +7,19 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
 - '10.13'
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - osx-64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
index 4a4e2777..bf4f28c7 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-arm64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
index 141661f4..9410046d 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-arm64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
index 60835e5a..ee3cd1aa 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
@@ -7,7 +7,7 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
@@ -19,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - osx-arm64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/osx_arm64_numpy2.1python3.13.____cp313.yaml b/.ci_support/osx_arm64_numpy2.1python3.13.____cp313.yaml
index f73fa269..252d298d 100644
--- a/.ci_support/osx_arm64_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/osx_arm64_numpy2.1python3.13.____cp313.yaml
@@ -7,19 +7,19 @@ ace:
 c_compiler:
 - clang
 c_compiler_version:
-- '17'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
 - '11.0'
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '17'
+- '18'
 fortran_compiler:
 - gfortran
 fortran_compiler_version:
@@ -40,8 +40,6 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - osx-arm64
 zip_keys:
@@ -50,5 +48,4 @@ zip_keys:
   - fortran_compiler_version
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/win_64_numpy2.0python3.10.____cpython.yaml b/.ci_support/win_64_numpy2.0python3.10.____cpython.yaml
index b8b18ff5..9285edde 100644
--- a/.ci_support/win_64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/win_64_numpy2.0python3.10.____cpython.yaml
@@ -5,11 +5,15 @@ c_compiler:
 c_stdlib:
 - vs
 channel_sources:
-- conda-forge/label/python_rc,conda-forge/label/llvm_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2019
+fortran_compiler:
+- flang
+fortran_compiler_version:
+- '19'
 libblas:
 - 3.9 *netlib
 libcblas:
@@ -24,12 +28,9 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.10.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - win-64
 zip_keys:
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/win_64_numpy2.0python3.11.____cpython.yaml b/.ci_support/win_64_numpy2.0python3.11.____cpython.yaml
index fe80fcdb..0180627e 100644
--- a/.ci_support/win_64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/win_64_numpy2.0python3.11.____cpython.yaml
@@ -5,11 +5,15 @@ c_compiler:
 c_stdlib:
 - vs
 channel_sources:
-- conda-forge/label/python_rc,conda-forge/label/llvm_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2019
+fortran_compiler:
+- flang
+fortran_compiler_version:
+- '19'
 libblas:
 - 3.9 *netlib
 libcblas:
@@ -24,12 +28,9 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.11.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - win-64
 zip_keys:
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/win_64_numpy2.0python3.12.____cpython.yaml b/.ci_support/win_64_numpy2.0python3.12.____cpython.yaml
index 3d162d08..9a2b76d8 100644
--- a/.ci_support/win_64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/win_64_numpy2.0python3.12.____cpython.yaml
@@ -5,11 +5,15 @@ c_compiler:
 c_stdlib:
 - vs
 channel_sources:
-- conda-forge/label/python_rc,conda-forge/label/llvm_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2019
+fortran_compiler:
+- flang
+fortran_compiler_version:
+- '19'
 libblas:
 - 3.9 *netlib
 libcblas:
@@ -24,12 +28,9 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.12.* *_cpython
-python_impl:
-- cpython
 target_platform:
 - win-64
 zip_keys:
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.ci_support/win_64_numpy2.1python3.13.____cp313.yaml b/.ci_support/win_64_numpy2.1python3.13.____cp313.yaml
index 1913d523..b84f68de 100644
--- a/.ci_support/win_64_numpy2.1python3.13.____cp313.yaml
+++ b/.ci_support/win_64_numpy2.1python3.13.____cp313.yaml
@@ -5,11 +5,15 @@ c_compiler:
 c_stdlib:
 - vs
 channel_sources:
-- conda-forge/label/python_rc,conda-forge
+- conda-forge
 channel_targets:
 - conda-forge main
 cxx_compiler:
 - vs2019
+fortran_compiler:
+- flang
+fortran_compiler_version:
+- '19'
 libblas:
 - 3.9 *netlib
 libcblas:
@@ -24,12 +28,9 @@ pin_run_as_build:
     max_pin: x.x
 python:
 - 3.13.* *_cp313
-python_impl:
-- cpython
 target_platform:
 - win-64
 zip_keys:
 - - python
   - numpy
-  - python_impl
   - channel_sources
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 856f469d..827a29fb 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -31,13 +31,13 @@ pkgs_dirs:
 solver: libmamba
 
 CONDARC
+mv /opt/conda/conda-meta/history /opt/conda/conda-meta/history.$(date +%Y-%m-%d-%H-%M-%S)
+echo > /opt/conda/conda-meta/history
+micromamba install --root-prefix ~/.conda --prefix /opt/conda \
+    --yes --override-channels --channel conda-forge --strict-channel-priority \
+    pip  python=3.12 conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
 export CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1
 
-mamba install --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
-    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
-mamba update --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
-    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
-
 # set up the condarc
 setup_conda_rc "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
 
@@ -76,8 +76,8 @@ else
         --extra-meta flow_run_id="${flow_run_id:-}" remote_url="${remote_url:-}" sha="${sha:-}"
     ( startgroup "Inspecting artifacts" ) 2> /dev/null
 
-    # inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
-    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+    # inspect_artifacts was only added in conda-forge-ci-setup 4.9.4
+    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts --recipe-dir "${RECIPE_ROOT}" -m "${CONFIG_FILE}" || echo "inspect_artifacts needs conda-forge-ci-setup >=4.9.4"
 
     ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 420f051c..7f948c41 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -7,28 +7,39 @@ source .scripts/logging_utils.sh
 set -xe
 
 MINIFORGE_HOME=${MINIFORGE_HOME:-${HOME}/miniforge3}
+MINIFORGE_HOME=${MINIFORGE_HOME%/} # remove trailing slash
 
-( startgroup "Installing a fresh version of Miniforge" ) 2> /dev/null
-
-MINIFORGE_URL="https://github.com/conda-forge/miniforge/releases/latest/download"
-MINIFORGE_FILE="Miniforge3-MacOSX-$(uname -m).sh"
-curl -L -O "${MINIFORGE_URL}/${MINIFORGE_FILE}"
-rm -rf ${MINIFORGE_HOME}
-bash $MINIFORGE_FILE -b -p ${MINIFORGE_HOME}
-
-( endgroup "Installing a fresh version of Miniforge" ) 2> /dev/null
+( startgroup "Provisioning base env with micromamba" ) 2> /dev/null
+MICROMAMBA_VERSION="1.5.10-0"
+if [[ "$(uname -m)" == "arm64" ]]; then
+  osx_arch="osx-arm64"
+else
+  osx_arch="osx-64"
+fi
+MICROMAMBA_URL="https://github.com/mamba-org/micromamba-releases/releases/download/${MICROMAMBA_VERSION}/micromamba-${osx_arch}"
+MAMBA_ROOT_PREFIX="${MINIFORGE_HOME}-micromamba-$(date +%s)"
+echo "Downloading micromamba ${MICROMAMBA_VERSION}"
+micromamba_exe="$(mktemp -d)/micromamba"
+curl -L -o "${micromamba_exe}" "${MICROMAMBA_URL}"
+chmod +x "${micromamba_exe}"
+echo "Creating environment"
+"${micromamba_exe}" create --yes --root-prefix "${MAMBA_ROOT_PREFIX}" --prefix "${MINIFORGE_HOME}" \
+  --channel conda-forge \
+  pip python=3.12 conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
+echo "Moving pkgs cache from ${MAMBA_ROOT_PREFIX} to ${MINIFORGE_HOME}"
+mv "${MAMBA_ROOT_PREFIX}/pkgs" "${MINIFORGE_HOME}"
+echo "Cleaning up micromamba"
+rm -rf "${MAMBA_ROOT_PREFIX}" "${micromamba_exe}" || true
+( endgroup "Provisioning base env with micromamba" ) 2> /dev/null
 
 ( startgroup "Configuring conda" ) 2> /dev/null
 
-source ${MINIFORGE_HOME}/etc/profile.d/conda.sh
+source "${MINIFORGE_HOME}/etc/profile.d/conda.sh"
 conda activate base
 export CONDA_SOLVER="libmamba"
 export CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1
 
-mamba install --update-specs --quiet --yes --channel conda-forge --strict-channel-priority \
-    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
-mamba update --update-specs --yes --quiet --channel conda-forge --strict-channel-priority \
-    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
+
 
 
 
@@ -88,8 +99,8 @@ else
 
     ( startgroup "Inspecting artifacts" ) 2> /dev/null
 
-    # inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
-    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+    # inspect_artifacts was only added in conda-forge-ci-setup 4.9.4
+    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts --recipe-dir ./recipe -m ./.ci_support/${CONFIG}.yaml || echo "inspect_artifacts needs conda-forge-ci-setup >=4.9.4"
 
     ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
diff --git a/.scripts/run_win_build.bat b/.scripts/run_win_build.bat
index a45c34fd..d3c0345e 100755
--- a/.scripts/run_win_build.bat
+++ b/.scripts/run_win_build.bat
@@ -3,30 +3,52 @@
 :: changes to this script, consider a proposal to conda-smithy so that other feedstocks can also
 :: benefit from the improvement.
 
-:: Note: we assume a Miniforge installation is available
-
 :: INPUTS (required environment variables)
 :: CONFIG: name of the .ci_support/*.yaml file for this job
 :: CI: azure, github_actions, or unset
+:: MINIFORGE_HOME: where to install the base conda environment
 :: UPLOAD_PACKAGES: true or false
 :: UPLOAD_ON_BRANCH: true or false
 
 setlocal enableextensions enabledelayedexpansion
 
+if "%MINIFORGE_HOME%"=="" set "MINIFORGE_HOME=%USERPROFILE%\Miniforge3"
+:: Remove trailing backslash, if present
+if "%MINIFORGE_HOME:~-1%"=="\" set "MINIFORGE_HOME=%MINIFORGE_HOME:~0,-1%"
+call :start_group "Provisioning base env with micromamba"
+set "MAMBA_ROOT_PREFIX=%MINIFORGE_HOME%-micromamba-%RANDOM%"
+set "MICROMAMBA_VERSION=1.5.10-0"
+set "MICROMAMBA_URL=https://github.com/mamba-org/micromamba-releases/releases/download/%MICROMAMBA_VERSION%/micromamba-win-64"
+set "MICROMAMBA_TMPDIR=%TMP%\micromamba-%RANDOM%"
+set "MICROMAMBA_EXE=%MICROMAMBA_TMPDIR%\micromamba.exe"
+
+echo Downloading micromamba %MICROMAMBA_VERSION%
+if not exist "%MICROMAMBA_TMPDIR%" mkdir "%MICROMAMBA_TMPDIR%"
+certutil -urlcache -split -f "%MICROMAMBA_URL%" "%MICROMAMBA_EXE%"
+if !errorlevel! neq 0 exit /b !errorlevel!
+
+echo Creating environment
+call "%MICROMAMBA_EXE%" create --yes --root-prefix "%MAMBA_ROOT_PREFIX%" --prefix "%MINIFORGE_HOME%" ^
+    --channel conda-forge ^
+    pip python=3.12 conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
+if !errorlevel! neq 0 exit /b !errorlevel!
+echo Moving pkgs cache from %MAMBA_ROOT_PREFIX% to %MINIFORGE_HOME%
+move /Y "%MAMBA_ROOT_PREFIX%\pkgs" "%MINIFORGE_HOME%"
+if !errorlevel! neq 0 exit /b !errorlevel!
+echo Removing %MAMBA_ROOT_PREFIX%
+del /S /Q "%MAMBA_ROOT_PREFIX%"
+del /S /Q "%MICROMAMBA_TMPDIR%"
+call :end_group
+
 call :start_group "Configuring conda"
 
 :: Activate the base conda environment
-call activate base
+call "%MINIFORGE_HOME%\Scripts\activate.bat"
 :: Configure the solver
 set "CONDA_SOLVER=libmamba"
 if !errorlevel! neq 0 exit /b !errorlevel!
 set "CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1"
 
-:: Provision the necessary dependencies to build the recipe later
-echo Installing dependencies
-mamba.exe install pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1" -c conda-forge --strict-channel-priority --yes
-if !errorlevel! neq 0 exit /b !errorlevel!
-
 :: Set basic configuration
 echo Setting up configuration
 setup_conda_rc .\ ".\recipe" .\.ci_support\%CONFIG%.yaml
@@ -59,8 +81,8 @@ conda-build.exe "recipe" -m .ci_support\%CONFIG%.yaml --suppress-variables %EXTR
 if !errorlevel! neq 0 exit /b !errorlevel!
 
 call :start_group "Inspecting artifacts"
-:: inspect_artifacts was only added in conda-forge-ci-setup 4.6.0
-WHERE inspect_artifacts >nul 2>nul && inspect_artifacts || echo "inspect_artifacts needs conda-forge-ci-setup >=4.6.0"
+:: inspect_artifacts was only added in conda-forge-ci-setup 4.9.4
+WHERE inspect_artifacts >nul 2>nul && inspect_artifacts --recipe-dir ".\recipe" -m .ci_support\%CONFIG%.yaml || echo "inspect_artifacts needs conda-forge-ci-setup >=4.9.4"
 call :end_group
 
 :: Prepare some environment variables for the upload step
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index e5306da9..32da3d0c 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -2,7 +2,32 @@
 # update the conda-forge.yml and/or the recipe/meta.yaml.
 # -*- mode: yaml -*-
 
-jobs:
-  - template: ./.azure-pipelines/azure-pipelines-linux.yml
-  - template: ./.azure-pipelines/azure-pipelines-osx.yml
-  - template: ./.azure-pipelines/azure-pipelines-win.yml
\ No newline at end of file
+stages:
+- stage: Check
+  jobs:
+    - job: Skip
+      pool:
+        vmImage: 'ubuntu-22.04'
+      variables:
+        DECODE_PERCENTS: 'false'
+        RET: 'true'
+      steps:
+      - checkout: self
+        fetchDepth: '2'
+      - bash: |
+          git_log=`git log --max-count=1 --skip=1 --pretty=format:"%B" | tr "\n" " "`
+          echo "##vso[task.setvariable variable=log]$git_log"
+        displayName: Obtain commit message
+      - bash: echo "##vso[task.setvariable variable=RET]false"
+        condition: or(contains(variables.log, '[skip azp]'), contains(variables.log, '[azp skip]'), contains(variables.log, '[skip ci]'), contains(variables.log, '[ci skip]'))
+        displayName: Skip build?
+      - bash: echo "##vso[task.setvariable variable=start_main;isOutput=true]$RET"
+        name: result
+        displayName: Export result
+- stage: Build
+  condition: and(succeeded(), eq(dependencies.Check.outputs['Skip.result.start_main'], 'true'))
+  dependsOn: Check
+  jobs:
+    - template: ./.azure-pipelines/azure-pipelines-linux.yml
+    - template: ./.azure-pipelines/azure-pipelines-osx.yml
+    - template: ./.azure-pipelines/azure-pipelines-win.yml
\ No newline at end of file
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index eb84ad0b..975d8ed5 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -1,2 +1,4 @@
-channel_sources:                                                        # [win]
-  - conda-forge/label/python_rc,conda-forge/label/llvm_rc,conda-forge   # [win]
+c_compiler_version:            # [osx]
+  - 18                         # [osx]
+cxx_compiler_version:          # [osx]
+  - 18                         # [osx]
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 8dae07f9..718a515b 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -43,8 +43,6 @@ source:
 build:
   number: 0
   skip: true  # [py<310]
-  # pypy is currently broken and on its way out anyway
-  skip: true  # [python_impl == "pypy"]
 
 requirements:
   build:
@@ -60,15 +58,10 @@ requirements:
     - {{ compiler('c') }}
     - {{ stdlib('c') }}
     - {{ compiler('cxx') }}
-    - {{ compiler('fortran') }}              # [unix]
+    - {{ compiler('fortran') }}
     # pythran code needs clang-cl on windows
     - clang                                  # [win]
-    # use flang as fortran compiler on windows (uses clang driver)
-    - flang                                  # [win]
-    # use llvm linker for both of the above
-    - lld                                    # [win]
   host:
-    - compiler-rt                            # [win]
     - libblas
     - libcblas
     - liblapack
@@ -98,7 +91,7 @@ outputs:
         - {{ compiler('c') }}
         - {{ stdlib('c') }}
         - {{ compiler('cxx') }}
-        - {{ compiler('fortran') }}              # [unix]
+        - {{ compiler('fortran') }}
       host:
         - libblas
         - libcblas
@@ -227,10 +220,8 @@ outputs:
         - {{ compiler('c') }}
         - {{ stdlib('c') }}
         - {{ compiler('cxx') }}
-        - {{ compiler('fortran') }}              # [unix]
+        - {{ compiler('fortran') }}
         - clang                                  # [win]
-        - flang                                  # [win]
-        - lld                                    # [win]
         - sed                                    # [unix]
         - m2-sed                                 # [win]
       host: