diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index abcbeb9..875d996 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -13,6 +13,7 @@ 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/.ci_support/linux_64_.yaml b/.ci_support/linux_64_.yaml
index 6c59082..3166d1d 100644
--- a/.ci_support/linux_64_.yaml
+++ b/.ci_support/linux_64_.yaml
@@ -1,3 +1,7 @@
+c_stdlib:
+- sysroot
+c_stdlib_version:
+- '2.12'
 cdt_name:
 - cos6
 channel_sources:
@@ -6,3 +10,6 @@ channel_targets:
 - conda-forge main
 docker_image:
 - quay.io/condaforge/linux-anvil-cos7-x86_64
+zip_keys:
+- - c_stdlib_version
+  - cdt_name
diff --git a/.scripts/build_steps.sh b/.scripts/build_steps.sh
index f017291..2f3df6c 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}" "${CONFIG_FILE}"
@@ -65,7 +65,7 @@ if [[ "${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/build-locally.py b/build-locally.py
index 3f4b7a7..e0d408d 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 63945b0..4ea36a7 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "gdptools" %}
-{% set version = "0.2.7" %}
+{% set version = "0.2.8" %}
 
 package:
   name: {{ name|lower }}
@@ -7,7 +7,7 @@ package:
 
 source:
   url: https://pypi.io/packages/source/{{ name[0] }}/{{ name }}/gdptools-{{ version }}.tar.gz
-  sha256: af5232e101698ef7d35d1bd13c45a9c48d490e0b8c16e16e9fc0f71d89fe2d6a
+  sha256: f8d86202a03c69cdd6d30b1399b7e4905985d54ff9654a3bc1ce9753e2b89d73
 
 build:
   entry_points:
@@ -24,6 +24,7 @@ requirements:
   run:
     # - certifi <2023.7.22
     # - bump2version >=1.0.1,<2.0.0
+    - tqdm >=4.66.2,<5.0.0
     - statsmodels >=0.14.0,<0.15.0
     - dask-core <=2023.8.1
     - python >=3.9,<3.12