diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index d7c12e4..025660f 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -33,6 +33,7 @@ jobs:
         UPLOAD_PACKAGES: 'True'
         DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
   timeoutInMinutes: 360
+  variables: {}
 
   steps:
   # configure qemu binfmt-misc running.  This allows us to run docker containers
diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index 5bfabd3..4141e1a 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-11
+    vmImage: macOS-12
   strategy:
     matrix:
       osx_64_python3.10.____cpython:
@@ -42,6 +42,7 @@ jobs:
         CONFIG: osx_arm64_python3.9.____cpython
         UPLOAD_PACKAGES: 'True'
   timeoutInMinutes: 360
+  variables: {}
 
   steps:
   # TODO: Fast finish on azure pipelines?
diff --git a/.ci_support/linux_64_python3.10.____cpython.yaml b/.ci_support/linux_64_python3.10.____cpython.yaml
index 69167d0..a0dd37f 100644
--- a/.ci_support/linux_64_python3.10.____cpython.yaml
+++ b/.ci_support/linux_64_python3.10.____cpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_python3.11.____cpython.yaml b/.ci_support/linux_64_python3.11.____cpython.yaml
index 90bd313..d378abc 100644
--- a/.ci_support/linux_64_python3.11.____cpython.yaml
+++ b/.ci_support/linux_64_python3.11.____cpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_python3.12.____cpython.yaml b/.ci_support/linux_64_python3.12.____cpython.yaml
index dcd6966..07b48d1 100644
--- a/.ci_support/linux_64_python3.12.____cpython.yaml
+++ b/.ci_support/linux_64_python3.12.____cpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_python3.8.____cpython.yaml b/.ci_support/linux_64_python3.8.____cpython.yaml
index 195fbd3..219dcad 100644
--- a/.ci_support/linux_64_python3.8.____cpython.yaml
+++ b/.ci_support/linux_64_python3.8.____cpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_python3.9.____73_pypy.yaml b/.ci_support/linux_64_python3.9.____73_pypy.yaml
index a433c8c..da4bc56 100644
--- a/.ci_support/linux_64_python3.9.____73_pypy.yaml
+++ b/.ci_support/linux_64_python3.9.____73_pypy.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_python3.9.____cpython.yaml b/.ci_support/linux_64_python3.9.____cpython.yaml
index f5b6b7b..9b05ff8 100644
--- a/.ci_support/linux_64_python3.9.____cpython.yaml
+++ b/.ci_support/linux_64_python3.9.____cpython.yaml
@@ -2,10 +2,14 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
@@ -26,3 +30,6 @@ target_platform:
 - linux-64
 wcslib:
 - '8'
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/migrations/cfitsio441.yaml b/.ci_support/migrations/cfitsio441.yaml
new file mode 100644
index 0000000..80270f2
--- /dev/null
+++ b/.ci_support/migrations/cfitsio441.yaml
@@ -0,0 +1,8 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for cfitsio 4.4.1
+  kind: version
+  migration_number: 1
+cfitsio:
+- 4.4.1
+migrator_ts: 1718934381.4672027
diff --git a/.ci_support/osx_64_python3.10.____cpython.yaml b/.ci_support/osx_64_python3.10.____cpython.yaml
index 8ce76a6..29840b6 100644
--- a/.ci_support/osx_64_python3.10.____cpython.yaml
+++ b/.ci_support/osx_64_python3.10.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_python3.11.____cpython.yaml b/.ci_support/osx_64_python3.11.____cpython.yaml
index 2c6e3d2..a85cc50 100644
--- a/.ci_support/osx_64_python3.11.____cpython.yaml
+++ b/.ci_support/osx_64_python3.11.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_python3.12.____cpython.yaml b/.ci_support/osx_64_python3.12.____cpython.yaml
index 1f761c2..12711d5 100644
--- a/.ci_support/osx_64_python3.12.____cpython.yaml
+++ b/.ci_support/osx_64_python3.12.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_python3.8.____cpython.yaml b/.ci_support/osx_64_python3.8.____cpython.yaml
index 3129d1d..b05f13e 100644
--- a/.ci_support/osx_64_python3.8.____cpython.yaml
+++ b/.ci_support/osx_64_python3.8.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_python3.9.____73_pypy.yaml b/.ci_support/osx_64_python3.9.____73_pypy.yaml
index 22a4aff..967a1ad 100644
--- a/.ci_support/osx_64_python3.9.____73_pypy.yaml
+++ b/.ci_support/osx_64_python3.9.____73_pypy.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_python3.9.____cpython.yaml b/.ci_support/osx_64_python3.9.____cpython.yaml
index f8e2459..01fd797 100644
--- a/.ci_support/osx_64_python3.9.____cpython.yaml
+++ b/.ci_support/osx_64_python3.9.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.13'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_python3.10.____cpython.yaml b/.ci_support/osx_arm64_python3.10.____cpython.yaml
index e92cec5..bc2d8e6 100644
--- a/.ci_support/osx_arm64_python3.10.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.10.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_python3.11.____cpython.yaml b/.ci_support/osx_arm64_python3.11.____cpython.yaml
index c0778f7..8f69865 100644
--- a/.ci_support/osx_arm64_python3.11.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.11.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_python3.12.____cpython.yaml b/.ci_support/osx_arm64_python3.12.____cpython.yaml
index b043ab9..cd8fdb8 100644
--- a/.ci_support/osx_arm64_python3.12.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.12.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_python3.8.____cpython.yaml b/.ci_support/osx_arm64_python3.8.____cpython.yaml
index 5ff3db9..60d6b9a 100644
--- a/.ci_support/osx_arm64_python3.8.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.8.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_python3.9.____cpython.yaml b/.ci_support/osx_arm64_python3.9.____cpython.yaml
index 700c8e3..2b59c4c 100644
--- a/.ci_support/osx_arm64_python3.9.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.9.____cpython.yaml
@@ -1,11 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
 - '11.0'
+MACOSX_SDK_VERSION:
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 cfitsio:
-- 4.4.0
+- 4.4.1
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.gitattributes b/.gitattributes
index 7f32763..18f114a 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -20,8 +20,8 @@ bld.bat text eol=crlf
 .travis.yml linguist-generated=true
 .scripts/* linguist-generated=true
 .woodpecker.yml linguist-generated=true
-LICENSE.txt linguist-generated=true
-README.md linguist-generated=true
+/LICENSE.txt linguist-generated=true
+/README.md linguist-generated=true
 azure-pipelines.yml linguist-generated=true
 build-locally.py linguist-generated=true
 shippable.yml linguist-generated=true
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 9121002..a5836e8 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -68,10 +68,17 @@ if [[ "${BUILD_WITH_CONDA_DEBUG:-0}" == 1 ]]; then
     # Drop into an interactive shell
     /bin/bash
 else
-    conda build "${RECIPE_ROOT}" -m "${CI_SUPPORT}/${CONFIG}.yaml" \
+    conda-build "${RECIPE_ROOT}" -m "${CI_SUPPORT}/${CONFIG}.yaml" \
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
         --clobber-file "${CI_SUPPORT}/clobber_${CONFIG}.yaml" \
         --extra-meta flow_run_id="${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"
+
+    ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 16daa69..ba0c879 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -81,10 +81,17 @@ else
         EXTRA_CB_OPTIONS="${EXTRA_CB_OPTIONS:-} --no-test"
     fi
 
-    conda build ./recipe -m ./.ci_support/${CONFIG}.yaml \
+    conda-build ./recipe -m ./.ci_support/${CONFIG}.yaml \
         --suppress-variables ${EXTRA_CB_OPTIONS:-} \
         --clobber-file ./.ci_support/clobber_${CONFIG}.yaml \
         --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"
+
+    ( endgroup "Inspecting artifacts" ) 2> /dev/null
     ( startgroup "Validating outputs" ) 2> /dev/null
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 93a776e..7ba9d65 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -10,7 +10,7 @@ source:
   sha256: e8abd2cef74ef9d5cf405627e0534ae8a009cc66c4488a9977d6b768ceab1ffc
 
 build:
-  number: 0
+  number: 1
   skip: true  # [win]
 
 requirements:
@@ -20,6 +20,7 @@ requirements:
     - libtool  # [not win]
     - gnuconfig  # [unix]
     - {{ compiler('c') }}  # [not win]
+    - {{ stdlib("c") }}    # [not win]
     - make  # [not win]
   host:
     - llvm-openmp  # [osx]