diff --git a/.conda/elements/meta.yaml b/.conda/elements/meta.yaml
index 5be108cdf..a3b2cde6a 100644
--- a/.conda/elements/meta.yaml
+++ b/.conda/elements/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: elements
diff --git a/.conda/evpfft-dev/cpu/meta.yaml b/.conda/evpfft-dev/cpu/meta.yaml
index e59bb6636..31a431ba2 100644
--- a/.conda/evpfft-dev/cpu/meta.yaml
+++ b/.conda/evpfft-dev/cpu/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: evpfft-dev
diff --git a/.conda/evpfft/cpu/meta.yaml b/.conda/evpfft/cpu/meta.yaml
index 934140589..1fe23e817 100644
--- a/.conda/evpfft/cpu/meta.yaml
+++ b/.conda/evpfft/cpu/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: evpfft
diff --git a/.conda/evpfft/cuda/meta.yaml b/.conda/evpfft/cuda/meta.yaml
index 80d01d516..7327b24ac 100644
--- a/.conda/evpfft/cuda/meta.yaml
+++ b/.conda/evpfft/cuda/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: evpfft-cuda
diff --git a/.conda/fierro-dev/cpu/meta.yaml b/.conda/fierro-dev/cpu/meta.yaml
index f5346e1bf..3ef68df40 100644
--- a/.conda/fierro-dev/cpu/meta.yaml
+++ b/.conda/fierro-dev/cpu/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: fierro-dev
diff --git a/.conda/fierro/cpu/meta.yaml b/.conda/fierro/cpu/meta.yaml
index f97a657d0..2dad0321a 100644
--- a/.conda/fierro/cpu/meta.yaml
+++ b/.conda/fierro/cpu/meta.yaml
@@ -3,7 +3,8 @@
 {% set macos_compiler_version = "16" %}
 # We need the same MPI version in build + host. 
 # So we have to specify it, unfortunately
-{% set mpi_version = "4.1" %}
+# UPDATE: Not necessary right now, perhaps in the future
+#{% set mpi_version = "4.1" %}
 
 package:
   name: fierro-cpu
@@ -26,19 +27,16 @@ requirements:
     - {{ compiler('cxx') }}={{ linux_compiler_version }} # [linux]
     - {{ compiler('cxx') }}={{ macos_compiler_version }} # [osx]
     - {{ compiler('fortran') }}
-      #DAN- openmpi={{ mpi_version }}
     - openmpi
   host:
     - _openmp_mutex # [linux]
     - llvm-openmp   # [osx]
-      #DAN- openmpi={{ mpi_version }}
     - fierro-trilinos-cpu
     - elements
     - openmpi
   run:
     - fierro-trilinos-cpu
     - openmpi
-      #DAN- mpi
 
 about:
   home: https://github.com/lanl/Fierro
diff --git a/.conda/heffte/cpu/meta.yaml b/.conda/heffte/cpu/meta.yaml
index 8bdca2aed..9b5c10033 100644
--- a/.conda/heffte/cpu/meta.yaml
+++ b/.conda/heffte/cpu/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: fierro-heffte
diff --git a/.conda/heffte/cuda/meta.yaml b/.conda/heffte/cuda/meta.yaml
index 92ec25398..bf78b85bc 100644
--- a/.conda/heffte/cuda/meta.yaml
+++ b/.conda/heffte/cuda/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 {% set cuda_version = "12.3" %}
 
 package:
diff --git a/.conda/trilinos/cpu/meta.yaml b/.conda/trilinos/cpu/meta.yaml
index 5bd236483..94d70de08 100644
--- a/.conda/trilinos/cpu/meta.yaml
+++ b/.conda/trilinos/cpu/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "15.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package:
   name: fierro-trilinos-cpu
diff --git a/.conda/voxelizer/meta.yaml b/.conda/voxelizer/meta.yaml
index e027c6741..cfcbf40d6 100644
--- a/.conda/voxelizer/meta.yaml
+++ b/.conda/voxelizer/meta.yaml
@@ -1,6 +1,6 @@
 {% set version = "1.0.0" %}
 {% set linux_compiler_version = "10.4.0" %}
-{% set macos_compiler_version = "12" %}
+{% set macos_compiler_version = "16" %}
 
 package: 
   name: fierro-voxelizer