diff --git a/.ci_support/linux_64_cuda_compiler_version12.9.yaml b/.ci_support/linux_64_cuda_compiler_version12.9.yaml
index 02323ab9b..c106947bb 100644
--- a/.ci_support/linux_64_cuda_compiler_version12.9.yaml
+++ b/.ci_support/linux_64_cuda_compiler_version12.9.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/linux_64_cuda_compiler_versionNone.yaml b/.ci_support/linux_64_cuda_compiler_versionNone.yaml
index 44fea9bf5..b26ba0651 100644
--- a/.ci_support/linux_64_cuda_compiler_versionNone.yaml
+++ b/.ci_support/linux_64_cuda_compiler_versionNone.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/linux_aarch64_cuda_compiler_version12.9.yaml b/.ci_support/linux_aarch64_cuda_compiler_version12.9.yaml
index 67a4259eb..e714cc214 100644
--- a/.ci_support/linux_aarch64_cuda_compiler_version12.9.yaml
+++ b/.ci_support/linux_aarch64_cuda_compiler_version12.9.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml b/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml
index 7a535f7f0..11af5db74 100644
--- a/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml
+++ b/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index 8cfdd1f25..849f7f831 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/migrations/aws_c_endofjuly27.yaml b/.ci_support/migrations/aws_c_endofjuly27.yaml
new file mode 100644
index 000000000..450d946c7
--- /dev/null
+++ b/.ci_support/migrations/aws_c_endofjuly27.yaml
@@ -0,0 +1,18 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for aws-c-* (end-of-july'27)
+  kind: version
+  migration_number: 1
+  exclude_pinned_pkgs: false
+  automerge: true
+migrator_ts: 1785142307
+aws_c_cal:
+  - '0.9.15'
+aws_c_common:
+  - '0.14.3'
+aws_c_io:
+  - '0.27.5'
+aws_c_s3:
+  - '0.13.1'
+aws_crt_cpp:
+  - '0.42.3'
diff --git a/.ci_support/migrations/libgoogle_cloud38.yaml b/.ci_support/migrations/libgoogle_cloud38.yaml
deleted file mode 100644
index fc6f92532..000000000
--- a/.ci_support/migrations/libgoogle_cloud38.yaml
+++ /dev/null
@@ -1,46 +0,0 @@
-__migrator:
-  build_number: 1
-  commit_message: Rebuild for libgoogle_cloud 3.8
-  kind: version
-  migration_number: 1
-google_cloud_cpp:
-- '3.8'
-libgoogle_cloud:
-- '3.8'
-libgoogle_cloud_aiplatform_devel:
-- '3.8'
-libgoogle_cloud_all_devel:
-- '3.8'
-libgoogle_cloud_automl_devel:
-- '3.8'
-libgoogle_cloud_bigquery_devel:
-- '3.8'
-libgoogle_cloud_bigtable_devel:
-- '3.8'
-libgoogle_cloud_compute_devel:
-- '3.8'
-libgoogle_cloud_devel:
-- '3.8'
-libgoogle_cloud_dialogflow_cx_devel:
-- '3.8'
-libgoogle_cloud_dialogflow_es_devel:
-- '3.8'
-libgoogle_cloud_discoveryengine_devel:
-- '3.8'
-libgoogle_cloud_dlp_devel:
-- '3.8'
-libgoogle_cloud_iam_devel:
-- '3.8'
-libgoogle_cloud_oauth2_devel:
-- '3.8'
-libgoogle_cloud_policytroubleshooter_devel:
-- '3.8'
-libgoogle_cloud_pubsub_devel:
-- '3.8'
-libgoogle_cloud_spanner_devel:
-- '3.8'
-libgoogle_cloud_speech_devel:
-- '3.8'
-libgoogle_cloud_storage_devel:
-- '3.8'
-migrator_ts: 1786233804.752991
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index c885756f2..eb8f18350 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '12.0'
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index f5d1508bd..0a62c41ab 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '12.0'
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/win_64_cuda_compiler_version12.9.yaml b/.ci_support/win_64_cuda_compiler_version12.9.yaml
index 429237440..e7094d12e 100644
--- a/.ci_support/win_64_cuda_compiler_version12.9.yaml
+++ b/.ci_support/win_64_cuda_compiler_version12.9.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/.ci_support/win_64_cuda_compiler_versionNone.yaml b/.ci_support/win_64_cuda_compiler_versionNone.yaml
index c6da457e1..f46bbbdba 100644
--- a/.ci_support/win_64_cuda_compiler_versionNone.yaml
+++ b/.ci_support/win_64_cuda_compiler_versionNone.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.40.1
+- 0.42.3
 aws_sdk_cpp:
 - 1.11.833
 azure_core_cpp:
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 140c27fe3..73f820e6b 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -49,7 +49,7 @@ source:
     folder: cpp/submodules/parquet-testing
 
 build:
-  number: 32
+  number: 33
   # for cuda support, building with one version is enough to be compatible with
   # all later versions, since arrow is only using libcuda, and not libcudart.
   skip: true  # [cuda_compiler_version not in ("None", cuda_compiler_version_min)]