diff --git a/.ci_support/linux_64_python3.10.____cpython.yaml b/.ci_support/linux_64_python3.10.____cpython.yaml
index 902bbdbc..cdbc94c1 100644
--- a/.ci_support/linux_64_python3.10.____cpython.yaml
+++ b/.ci_support/linux_64_python3.10.____cpython.yaml
@@ -23,7 +23,7 @@ docker_image:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/linux_64_python3.11.____cpython.yaml b/.ci_support/linux_64_python3.11.____cpython.yaml
index 390a6b64..351c43e4 100644
--- a/.ci_support/linux_64_python3.11.____cpython.yaml
+++ b/.ci_support/linux_64_python3.11.____cpython.yaml
@@ -23,7 +23,7 @@ docker_image:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/linux_64_python3.12.____cpython.yaml b/.ci_support/linux_64_python3.12.____cpython.yaml
index bd56334c..6227eaff 100644
--- a/.ci_support/linux_64_python3.12.____cpython.yaml
+++ b/.ci_support/linux_64_python3.12.____cpython.yaml
@@ -23,7 +23,7 @@ docker_image:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/linux_64_python3.9.____cpython.yaml b/.ci_support/linux_64_python3.9.____cpython.yaml
index 9ac56c2e..5a795c99 100644
--- a/.ci_support/linux_64_python3.9.____cpython.yaml
+++ b/.ci_support/linux_64_python3.9.____cpython.yaml
@@ -23,7 +23,7 @@ docker_image:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/migrations/absl_grpc_proto_25Q2.yaml b/.ci_support/migrations/absl_grpc_proto_25Q2.yaml
new file mode 100644
index 00000000..10b7a095
--- /dev/null
+++ b/.ci_support/migrations/absl_grpc_proto_25Q2.yaml
@@ -0,0 +1,29 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for libabseil 20250512, libgrpc 1.73 & libprotobuf 6.31.1
+  kind: version
+  migration_number: 1
+  exclude:
+    # core deps
+    - abseil-cpp
+    - grpc-cpp
+    - libprotobuf
+    # required for building/testing
+    - protobuf
+    - re2
+    # bazel stack
+    - bazel
+    - grpc_java_plugin
+    - singlejar
+libabseil:
+- 20250512
+libgrpc:
+- "1.73"
+libprotobuf:
+- 6.31.1
+# we need to leave this migration open until we're ready to move the global baseline, see
+# https://github.com/conda-forge/conda-forge.github.io/issues/2467; grpc 1.72 requires 11.0,
+# see https://github.com/grpc/grpc/commit/f122d248443c81592e748da1adb240cbf0a0231c
+c_stdlib_version:   # [osx]
+  - 11.0            # [osx]
+migrator_ts: 1748506837.6039238
diff --git a/.ci_support/osx_64_python3.10.____cpython.yaml b/.ci_support/osx_64_python3.10.____cpython.yaml
index 9aa1485f..f138a9ad 100644
--- a/.ci_support/osx_64_python3.10.____cpython.yaml
+++ b/.ci_support/osx_64_python3.10.____cpython.yaml
@@ -1,7 +1,7 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.15'
+- '11.0'
 MACOSX_SDK_VERSION:
-- '10.15'
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
@@ -9,7 +9,7 @@ c_compiler_version:
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
-- '10.15'
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 nodejs:
diff --git a/.ci_support/osx_64_python3.11.____cpython.yaml b/.ci_support/osx_64_python3.11.____cpython.yaml
index fb01573c..a6552477 100644
--- a/.ci_support/osx_64_python3.11.____cpython.yaml
+++ b/.ci_support/osx_64_python3.11.____cpython.yaml
@@ -1,7 +1,7 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.15'
+- '11.0'
 MACOSX_SDK_VERSION:
-- '10.15'
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
@@ -9,7 +9,7 @@ c_compiler_version:
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
-- '10.15'
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 nodejs:
diff --git a/.ci_support/osx_64_python3.12.____cpython.yaml b/.ci_support/osx_64_python3.12.____cpython.yaml
index f13c298b..beb0ce52 100644
--- a/.ci_support/osx_64_python3.12.____cpython.yaml
+++ b/.ci_support/osx_64_python3.12.____cpython.yaml
@@ -1,7 +1,7 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.15'
+- '11.0'
 MACOSX_SDK_VERSION:
-- '10.15'
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
@@ -9,7 +9,7 @@ c_compiler_version:
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
-- '10.15'
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 nodejs:
diff --git a/.ci_support/osx_64_python3.9.____cpython.yaml b/.ci_support/osx_64_python3.9.____cpython.yaml
index 139f8168..e8714259 100644
--- a/.ci_support/osx_64_python3.9.____cpython.yaml
+++ b/.ci_support/osx_64_python3.9.____cpython.yaml
@@ -1,7 +1,7 @@
 MACOSX_DEPLOYMENT_TARGET:
-- '10.15'
+- '11.0'
 MACOSX_SDK_VERSION:
-- '10.15'
+- '11.0'
 c_compiler:
 - clang
 c_compiler_version:
@@ -9,7 +9,7 @@ c_compiler_version:
 c_stdlib:
 - macosx_deployment_target
 c_stdlib_version:
-- '10.15'
+- '11.0'
 channel_sources:
 - conda-forge
 channel_targets:
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - x86_64-apple-darwin13.4.0
 nodejs:
diff --git a/.ci_support/osx_arm64_python3.10.____cpython.yaml b/.ci_support/osx_arm64_python3.10.____cpython.yaml
index 872e4f5a..90ab0a84 100644
--- a/.ci_support/osx_arm64_python3.10.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.10.____cpython.yaml
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - arm64-apple-darwin20.0.0
 nodejs:
diff --git a/.ci_support/osx_arm64_python3.11.____cpython.yaml b/.ci_support/osx_arm64_python3.11.____cpython.yaml
index b188989c..579149b5 100644
--- a/.ci_support/osx_arm64_python3.11.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.11.____cpython.yaml
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - arm64-apple-darwin20.0.0
 nodejs:
diff --git a/.ci_support/osx_arm64_python3.12.____cpython.yaml b/.ci_support/osx_arm64_python3.12.____cpython.yaml
index 130a4a15..b7bd8870 100644
--- a/.ci_support/osx_arm64_python3.12.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.12.____cpython.yaml
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - arm64-apple-darwin20.0.0
 nodejs:
diff --git a/.ci_support/osx_arm64_python3.9.____cpython.yaml b/.ci_support/osx_arm64_python3.9.____cpython.yaml
index 46001c15..a0a63d1e 100644
--- a/.ci_support/osx_arm64_python3.9.____cpython.yaml
+++ b/.ci_support/osx_arm64_python3.9.____cpython.yaml
@@ -23,7 +23,7 @@ cxx_compiler_version:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 macos_machine:
 - arm64-apple-darwin20.0.0
 nodejs:
diff --git a/.ci_support/win_64_python3.10.____cpython.yaml b/.ci_support/win_64_python3.10.____cpython.yaml
index 86daaddb..dd50ab57 100644
--- a/.ci_support/win_64_python3.10.____cpython.yaml
+++ b/.ci_support/win_64_python3.10.____cpython.yaml
@@ -13,7 +13,7 @@ cxx_compiler:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/win_64_python3.11.____cpython.yaml b/.ci_support/win_64_python3.11.____cpython.yaml
index f0e08e32..3950926d 100644
--- a/.ci_support/win_64_python3.11.____cpython.yaml
+++ b/.ci_support/win_64_python3.11.____cpython.yaml
@@ -13,7 +13,7 @@ cxx_compiler:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/win_64_python3.12.____cpython.yaml b/.ci_support/win_64_python3.12.____cpython.yaml
index 87e26790..97424129 100644
--- a/.ci_support/win_64_python3.12.____cpython.yaml
+++ b/.ci_support/win_64_python3.12.____cpython.yaml
@@ -13,7 +13,7 @@ cxx_compiler:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/.ci_support/win_64_python3.9.____cpython.yaml b/.ci_support/win_64_python3.9.____cpython.yaml
index b24570e6..e38c20d5 100644
--- a/.ci_support/win_64_python3.9.____cpython.yaml
+++ b/.ci_support/win_64_python3.9.____cpython.yaml
@@ -13,7 +13,7 @@ cxx_compiler:
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
 libgrpc:
-- '1.71'
+- '1.73'
 nodejs:
 - '20'
 - '22'
diff --git a/conda-forge.yml b/conda-forge.yml
index 0d400991..01996149 100644
--- a/conda-forge.yml
+++ b/conda-forge.yml
@@ -10,7 +10,6 @@ conda_forge_output_validation: true
 github:
   branch_name: main
   tooling_branch_name: main
-test: native_and_emulated
 github_actions:
   self_hosted: true
   triggers:
@@ -18,3 +17,4 @@ github_actions:
   - pull_request
 provider:
   linux_64: github_actions
+test: native_and_emulated
diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index b54d919c..f6572c12 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -1,6 +1,2 @@
-c_stdlib_version:         # [osx and x86_64]
-- '10.15'                 # [osx and x86_64]
-MACOSX_SDK_VERSION:       # [osx and x86_64]
-- '10.15'                 # [osx and x86_64]
 github_actions_labels:
 - cirun-openstack-cpu-4xlarge
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index c8daebfe..b87d9ce9 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -28,7 +28,7 @@ source:
     - patches/0011-do-not-build-redis-openssl.patch
 
 build:
-  number: 0
+  number: 1
 
 # Need these up here for conda-smithy to handle them properly.
 requirements: