diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index d5ff321c..157d71a3 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -21,6 +21,7 @@ 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 ab8492e8..edb6e894 100755
--- a/.azure-pipelines/azure-pipelines-osx.yml
+++ b/.azure-pipelines/azure-pipelines-osx.yml
@@ -24,6 +24,7 @@ jobs:
         CONFIG: osx_arm64_blas_implopenblasblas_impl_liblibopenblas.0.dylib
         UPLOAD_PACKAGES: 'True'
   timeoutInMinutes: 360
+  variables: {}
 
   steps:
   # TODO: Fast finish on azure pipelines?
diff --git a/.ci_support/linux_64_blas_implblisblas_impl_liblibblis.so.4.yaml b/.ci_support/linux_64_blas_implblisblas_impl_liblibblis.so.4.yaml
index e59601be..91307801 100644
--- a/.ci_support/linux_64_blas_implblisblas_impl_liblibblis.so.4.yaml
+++ b/.ci_support/linux_64_blas_implblisblas_impl_liblibblis.so.4.yaml
@@ -8,6 +8,10 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -27,3 +31,5 @@ zip_keys:
   - blas_impl_lib
 - - c_compiler_version
   - fortran_compiler_version
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_blas_implmklblas_impl_liblibmkl_rt.so.yaml b/.ci_support/linux_64_blas_implmklblas_impl_liblibmkl_rt.so.yaml
index fc5cada1..d90844bd 100644
--- a/.ci_support/linux_64_blas_implmklblas_impl_liblibmkl_rt.so.yaml
+++ b/.ci_support/linux_64_blas_implmklblas_impl_liblibmkl_rt.so.yaml
@@ -8,6 +8,10 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -27,3 +31,5 @@ zip_keys:
   - blas_impl_lib
 - - c_compiler_version
   - fortran_compiler_version
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_64_blas_implopenblasblas_impl_liblibopenblas.so.0.yaml b/.ci_support/linux_64_blas_implopenblasblas_impl_liblibopenblas.so.0.yaml
index a64a4d7c..39de7eab 100644
--- a/.ci_support/linux_64_blas_implopenblasblas_impl_liblibopenblas.so.0.yaml
+++ b/.ci_support/linux_64_blas_implopenblasblas_impl_liblibopenblas.so.0.yaml
@@ -8,6 +8,10 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -27,3 +31,5 @@ zip_keys:
   - blas_impl_lib
 - - c_compiler_version
   - fortran_compiler_version
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_aarch64_.yaml b/.ci_support/linux_aarch64_.yaml
index 61dd73b0..df42893e 100644
--- a/.ci_support/linux_aarch64_.yaml
+++ b/.ci_support/linux_aarch64_.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 cdt_arch:
 - aarch64
 cdt_name:
@@ -31,3 +35,5 @@ zip_keys:
   - blas_impl_lib
 - - c_compiler_version
   - fortran_compiler_version
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index b41054f1..42f583c0 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -8,6 +8,10 @@ c_compiler:
 - gcc
 c_compiler_version:
 - '12'
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.17'
 cdt_name:
 - cos7
 channel_sources:
@@ -27,3 +31,5 @@ zip_keys:
   - blas_impl_lib
 - - c_compiler_version
   - fortran_compiler_version
+- - c_stdlib_version
+  - cdt_name
diff --git a/.ci_support/osx_64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml b/.ci_support/osx_64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
index 20f09701..1d82684a 100644
--- a/.ci_support/osx_64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
+++ b/.ci_support/osx_64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.9'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_blas_implblisblas_impl_liblibblis.4.dylib.yaml b/.ci_support/osx_64_blas_implblisblas_impl_liblibblis.4.dylib.yaml
index ba4c7e83..baca95f5 100644
--- a/.ci_support/osx_64_blas_implblisblas_impl_liblibblis.4.dylib.yaml
+++ b/.ci_support/osx_64_blas_implblisblas_impl_liblibblis.4.dylib.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.9'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml b/.ci_support/osx_64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
index 9d049bcb..61e58df1 100644
--- a/.ci_support/osx_64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
+++ b/.ci_support/osx_64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '10.9'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml b/.ci_support/osx_arm64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
index dae73c08..c862bd53 100644
--- a/.ci_support/osx_arm64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
+++ b/.ci_support/osx_arm64_blas_implaccelerateblas_impl_liblibvecLibFort-ng.dylib.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/osx_arm64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml b/.ci_support/osx_arm64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
index 796baa9e..69503a3d 100644
--- a/.ci_support/osx_arm64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
+++ b/.ci_support/osx_arm64_blas_implopenblasblas_impl_liblibopenblas.0.dylib.yaml
@@ -10,6 +10,10 @@ c_compiler:
 - clang
 c_compiler_version:
 - '16'
+c_stdlib:
+- macosx_deployment_target
+c_stdlib_version:
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/win_64_blas_implblisblas_impl_liblibblis.4.dll.yaml b/.ci_support/win_64_blas_implblisblas_impl_liblibblis.4.dll.yaml
index 12399cad..aca63598 100644
--- a/.ci_support/win_64_blas_implblisblas_impl_liblibblis.4.dll.yaml
+++ b/.ci_support/win_64_blas_implblisblas_impl_liblibblis.4.dll.yaml
@@ -4,6 +4,8 @@ blas_impl:
 - blis
 blas_impl_lib:
 - libblis.4.dll
+c_stdlib:
+- vs
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/win_64_blas_implmklblas_impl_libmkl_rt.2.dll.yaml b/.ci_support/win_64_blas_implmklblas_impl_libmkl_rt.2.dll.yaml
index 79ce7a10..dca9647b 100644
--- a/.ci_support/win_64_blas_implmklblas_impl_libmkl_rt.2.dll.yaml
+++ b/.ci_support/win_64_blas_implmklblas_impl_libmkl_rt.2.dll.yaml
@@ -4,6 +4,8 @@ blas_impl:
 - mkl
 blas_impl_lib:
 - mkl_rt.2.dll
+c_stdlib:
+- vs
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.ci_support/win_64_blas_implopenblasblas_impl_libopenblas.dll.yaml b/.ci_support/win_64_blas_implopenblasblas_impl_libopenblas.dll.yaml
index a3c63c6d..65319347 100644
--- a/.ci_support/win_64_blas_implopenblasblas_impl_libopenblas.dll.yaml
+++ b/.ci_support/win_64_blas_implopenblasblas_impl_libopenblas.dll.yaml
@@ -4,6 +4,8 @@ blas_impl:
 - openblas
 blas_impl_lib:
 - openblas.dll
+c_stdlib:
+- vs
 channel_sources:
 - conda-forge
 channel_targets:
diff --git a/.gitignore b/.gitignore
index 62bf0590..179afe55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,8 +7,9 @@
 *
 !/conda-forge.yml
 
-# Don't ignore any subfolders if the parent folder is 'un-ignored'
-!/*/
+# Don't ignore any files/folders if the parent folder is 'un-ignored'
+# This also avoids warnings when adding an already-checked file with an ignored parent.
+!/**/
 # Don't ignore any files/folders recursively in the following folders
 !/recipe/**
 !/.ci_support/**
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index beda247e..899ba03c 100755
--- a/.scripts/build_steps.sh
+++ b/.scripts/build_steps.sh
@@ -34,9 +34,9 @@ CONDARC
 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 boa conda-forge-ci-setup=4
+    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 boa conda-forge-ci-setup=4
+    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
 
 # set up the condarc
 setup_conda_rc "${FEEDSTOCK_ROOT}" "${RECIPE_ROOT}" "${CONFIG_FILE}"
@@ -68,7 +68,7 @@ if [[ "${BUILD_WITH_CONDA_DEBUG:-0}" == 1 ]]; then
     # Drop into an interactive shell
     /bin/bash
 else
-    conda mambabuild "${RECIPE_ROOT}" -m "${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:-}"
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 9259eb93..07dff219 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -26,9 +26,9 @@ 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 boa conda-forge-ci-setup=4
+    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 boa conda-forge-ci-setup=4
+    pip mamba conda-build conda-forge-ci-setup=4 "conda-build>=24.1"
 
 
 
@@ -81,7 +81,7 @@ else
         EXTRA_CB_OPTIONS="${EXTRA_CB_OPTIONS:-} --no-test"
     fi
 
-    conda mambabuild ./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"
diff --git a/.scripts/run_win_build.bat b/.scripts/run_win_build.bat
index 48734de9..6d546976 100755
--- a/.scripts/run_win_build.bat
+++ b/.scripts/run_win_build.bat
@@ -24,7 +24,7 @@ set "CONDA_LIBMAMBA_SOLVER_NO_CHANNELS_FROM_INSTALLED=1"
 
 :: Provision the necessary dependencies to build the recipe later
 echo Installing dependencies
-mamba.exe install "python=3.10" pip mamba conda-build boa conda-forge-ci-setup=4 -c conda-forge --strict-channel-priority --yes
+mamba.exe install "python=3.10" 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
@@ -55,7 +55,7 @@ call :end_group
 
 :: Build the recipe
 echo Building recipe
-conda.exe mambabuild "recipe" -m .ci_support\%CONFIG%.yaml --suppress-variables %EXTRA_CB_OPTIONS%
+conda-build.exe "recipe" -m .ci_support\%CONFIG%.yaml --suppress-variables %EXTRA_CB_OPTIONS%
 if !errorlevel! neq 0 exit /b !errorlevel!
 
 :: Prepare some environment variables for the upload step
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 6b346f50..e5306da9 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -4,5 +4,5 @@
 
 jobs:
   - template: ./.azure-pipelines/azure-pipelines-linux.yml
-  - template: ./.azure-pipelines/azure-pipelines-win.yml
-  - template: ./.azure-pipelines/azure-pipelines-osx.yml
\ No newline at end of file
+  - template: ./.azure-pipelines/azure-pipelines-osx.yml
+  - template: ./.azure-pipelines/azure-pipelines-win.yml
\ No newline at end of file
diff --git a/build-locally.py b/build-locally.py
index 3f4b7a79..e0d408d0 100755
--- a/build-locally.py
+++ b/build-locally.py
@@ -64,8 +64,9 @@ def verify_config(ns):
     elif ns.config.startswith("osx"):
         if "OSX_SDK_DIR" not in os.environ:
             raise RuntimeError(
-                "Need OSX_SDK_DIR env variable set. Run 'export OSX_SDK_DIR=SDKs' "
-                "to download the SDK automatically to 'SDKs/MacOSX<ver>.sdk'. "
+                "Need OSX_SDK_DIR env variable set. Run 'export OSX_SDK_DIR=$PWD/SDKs' "
+                "to download the SDK automatically to '$PWD/SDKs/MacOSX<ver>.sdk'. "
+                "Note: OSX_SDK_DIR must be set to an absolute path. "
                 "Setting this variable implies agreement to the licensing terms of the SDK by Apple."
             )
 
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 10756ba9..8ddae222 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "3.9.0" %}
 # if build_num is reset to 0 (for new version), update increment for blas_minor below
-{% set build_num = 21 %}
+{% set build_num = 22 %}
 {% set version_major = version.split(".")[0] %}
 # blas_major denotes major infrastructural change to how blas is managed
 {% set blas_major = "2" %}
@@ -67,9 +67,9 @@ outputs:
       build:
         - {{ compiler('fortran') }}   # [blas_impl == 'accelerate']
       host:
-        - libopenblas 0.3.26   # [blas_impl == 'openblas']
+        - libopenblas 0.3.27   # [blas_impl == 'openblas']
         # from https://github.com/conda-forge/intel_repack-feedstock/
-        - mkl 2024.0           # [blas_impl == 'mkl']
+        - mkl 2024.1           # [blas_impl == 'mkl']
         - blis 0.9.0           # [blas_impl == 'blis']
       run:
         - {{ pin_compatible("libopenblas", max_pin="x.x.x", exact=win) }}  # [blas_impl == 'openblas']
@@ -200,11 +200,11 @@ outputs:
       string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
     requirements:
       host:
-        - openblas   0.3.26  # [blas_impl == "openblas"]
-        - mkl-devel  2024.0  # [blas_impl == "mkl"]
+        - openblas   0.3.27  # [blas_impl == "openblas"]
+        - mkl-devel  2024.1  # [blas_impl == "mkl"]
       run:
-        - openblas   0.3.26  # [blas_impl == "openblas"]
-        - mkl-devel  2024.0  # [blas_impl == "mkl"]
+        - openblas   0.3.27  # [blas_impl == "openblas"]
+        - mkl-devel  2024.1  # [blas_impl == "mkl"]
         - {{ pin_subpackage("liblapack", exact=True) }}      # [blas_impl != 'blis']
         - {{ pin_subpackage("liblapacke", exact=True) }}     # [blas_impl != 'blis']
         - liblapack  {{ version }} *netlib                   # [blas_impl == 'blis']