diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index 875d996..1741648 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -11,7 +11,7 @@ jobs:
       linux_64_:
         CONFIG: linux_64_
         UPLOAD_PACKAGES: 'True'
-        DOCKER_IMAGE: quay.io/condaforge/linux-anvil-cos7-x86_64
+        DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
   timeoutInMinutes: 360
   variables: {}
 
diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index ae4e0e7..215eeeb 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-13
   strategy:
     matrix:
       osx_64_:
diff --git a/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 6e576b2..f4d5c34 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,15 +1,15 @@
 c_compiler:
 - gcc
 c_compiler_version:
-- '12'
+- '13'
 c_stdlib:
 - sysroot
 c_stdlib_version:
-- '2.12'
+- '2.17'
 cdt_name:
-- cos6
+- conda
 cfitsio:
-- 4.3.1
+- 4.6.0
 channel_sources:
 - conda-forge
 channel_targets:
@@ -17,13 +17,11 @@ channel_targets:
 cxx_compiler:
 - gxx
 cxx_compiler_version:
-- '12'
+- '13'
 docker_image:
-- quay.io/condaforge/linux-anvil-cos7-x86_64
+- quay.io/condaforge/linux-anvil-x86_64:alma9
 target_platform:
 - linux-64
 zip_keys:
 - - c_compiler_version
   - cxx_compiler_version
-- - c_stdlib_version
-  - cdt_name
diff --git a/.ci_support/migrations/cfitsio431.yaml b/.ci_support/migrations/cfitsio431.yaml
deleted file mode 100644
index b4484dd..0000000
--- a/.ci_support/migrations/cfitsio431.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
-__migrator:
-  build_number: 1
-  kind: version
-  migration_number: 1
-cfitsio:
-- 4.3.1
-migrator_ts: 1700708993.7771494
diff --git a/.ci_support/migrations/cfitsio460.yaml b/.ci_support/migrations/cfitsio460.yaml
new file mode 100644
index 0000000..036ed1a
--- /dev/null
+++ b/.ci_support/migrations/cfitsio460.yaml
@@ -0,0 +1,8 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for cfitsio 4.6.0
+  kind: version
+  migration_number: 1
+cfitsio:
+- 4.6.0
+migrator_ts: 1742772391.5009055
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 5682af5..1257120 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -1,15 +1,17 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.9'
+- '10.13'
+MACOSX_SDK_VERSION:
+- '10.13'
 c_compiler:
 - clang
 c_compiler_version:
-- '16'
+- '18'
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
-- '10.9'
+- '10.13'
 cfitsio:
-- 4.3.1
+- 4.6.0
 channel_sources:
 - conda-forge
 channel_targets:
@@ -17,7 +19,7 @@ channel_targets:
 cxx_compiler:
 - clangxx
 cxx_compiler_version:
-- '16'
+- '18'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 target_platform:
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/.gitignore b/.gitignore
index 179afe5..47b5408 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,8 @@
 /build_artifacts
 
 *.pyc
+
+# Rattler-build's artifacts are in `output` when not specifying anything.
+/output
+# Pixi's configuration
+.pixi
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index 2f3df6c..f8051ab 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -31,18 +31,20 @@ 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}"
 
 source run_conda_forge_build_setup
 
+
+
 # make the build number clobber
 make_build_number "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
 
@@ -69,6 +71,12 @@ else
         --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 4.9.4
+    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
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 165fa51..ee996f4 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -6,29 +6,41 @@ source .scripts/logging_utils.sh
 
 set -xe
 
-MINIFORGE_HOME=${MINIFORGE_HOME:-${HOME}/miniforge3}
-
-( startgroup "Installing a fresh version of Miniforge" ) 2> /dev/null
-
-MINIFORGE_URL="https://github.com/conda-forge/miniforge/releases/latest/download"
-MINIFORGE_FILE="Mambaforge-MacOSX-$(uname -m).sh"
-curl -L -O "${MINIFORGE_URL}/${MINIFORGE_FILE}"
-rm -rf ${MINIFORGE_HOME}
-bash $MINIFORGE_FILE -b -p ${MINIFORGE_HOME}
-
-( endgroup "Installing a fresh version of Miniforge" ) 2> /dev/null
+MINIFORGE_HOME="${MINIFORGE_HOME:-${HOME}/miniforge3}"
+MINIFORGE_HOME="${MINIFORGE_HOME%/}" # remove trailing slash
+export CONDA_BLD_PATH="${CONDA_BLD_PATH:-${MINIFORGE_HOME}/conda-bld}"
+
+( 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 ${MINIFORGE_HOME}/etc/profile.d/conda.sh
+echo "Activating environment"
+source "${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"
+
 
 
 
@@ -81,6 +93,13 @@ else
         --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="$sha"
+
+    ( startgroup "Inspecting artifacts" ) 2> /dev/null
+
+    # inspect_artifacts was only added in conda-forge-ci-setup 4.9.4
+    command -v inspect_artifacts >/dev/null 2>&1 && inspect_artifacts --recipe-dir ./recipe -m ./.ci_support/${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
 
     validate_recipe_outputs "${FEEDSTOCK_NAME}"
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 33a441c..013bdc1 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -2,6 +2,31 @@
 # 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
\ 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]$git_log"
+        displayName: Obtain commit message
+      - bash: echo "##vso[task.setvariable variable=RET]false"
+        condition: and(eq(variables['Build.Reason'], 'PullRequest'), or(contains(variables.log, '[skip azp]'), contains(variables.log, '[azp skip]'), contains(variables.log, '[skip ci]'), contains(variables.log, '[ci skip]')))
+        displayName: Skip build?
+      - bash: echo "##vso[task.setvariable variable=start_main;isOutput=true]$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
\ No newline at end of file
diff --git a/build-locally.py b/build-locally.py
index e0d408d..c4a56c6 100755
--- a/build-locally.py
+++ b/build-locally.py
@@ -1,13 +1,16 @@
-#!/usr/bin/env python3
+#!/bin/sh
+"""exec" "python3" "$0" "$@" #"""  # fmt: off # fmt: on
 #
 # This file has been generated by conda-smithy in order to build the recipe
 # locally.
 #
-import os
+# The line above this comment is a bash / sh / zsh guard
+# to stop people from running it with the wrong interpreter
 import glob
+import os
+import platform
 import subprocess
 from argparse import ArgumentParser
-import platform
 
 
 def setup_environment(ns):
@@ -23,6 +26,13 @@ def setup_environment(ns):
             os.path.dirname(__file__), "miniforge3"
         )
 
+    # The default cache location might not be writable using docker on macOS.
+    if ns.config.startswith("linux") and platform.system() == "Darwin":
+        os.environ["CONDA_FORGE_DOCKER_RUN_ARGS"] = (
+            os.environ.get("CONDA_FORGE_DOCKER_RUN_ARGS", "")
+            + " -e RATTLER_CACHE_DIR=/tmp/rattler_cache"
+        )
+
 
 def run_docker_build(ns):
     script = ".scripts/run_docker_build.sh"
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index fe88bcb..b8dda48 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -15,12 +15,13 @@ source:
     - 0002-Fix_CXX_LIB_PATH_macro.patch
 
 build:
-  number: 4
+  number: 5
   skip: true  # [win]
 
 requirements:
   build:
     - {{ compiler('c') }}
+    - {{ stdlib("c") }}
     - {{ compiler('cxx') }}
     - automake
     - autoconf