diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
index bfe372746..b565a9bf0 100755
--- a/.azure-pipelines/azure-pipelines-osx.yml
+++ b/.azure-pipelines/azure-pipelines-osx.yml
@@ -12,10 +12,12 @@ jobs:
         CONFIG: osx_64_
         UPLOAD_PACKAGES: 'True'
         VMIMAGE: macOS-15
+        store_build_artifacts: false
       osx_arm64_:
         CONFIG: osx_arm64_
         UPLOAD_PACKAGES: 'True'
         VMIMAGE: macOS-15
+        store_build_artifacts: false
   timeoutInMinutes: 360
   variables: {}
 
diff --git a/.azure-pipelines/azure-pipelines-win.yml b/.azure-pipelines/azure-pipelines-win.yml
index 9fc01f635..a5ace57f6 100755
--- a/.azure-pipelines/azure-pipelines-win.yml
+++ b/.azure-pipelines/azure-pipelines-win.yml
@@ -11,9 +11,11 @@ jobs:
       win_64_cuda_compiler_version12.9:
         CONFIG: win_64_cuda_compiler_version12.9
         UPLOAD_PACKAGES: 'True'
+        store_build_artifacts: false
       win_64_cuda_compiler_versionNone:
         CONFIG: win_64_cuda_compiler_versionNone
         UPLOAD_PACKAGES: 'True'
+        store_build_artifacts: false
   timeoutInMinutes: 360
   variables:
     CONDA_BLD_PATH: C:\\bld\\
diff --git a/.ci_support/linux_64_cuda_compiler_version12.9.yaml b/.ci_support/linux_64_cuda_compiler_version12.9.yaml
index 085344255..1b7612c9b 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/linux_64_cuda_compiler_versionNone.yaml b/.ci_support/linux_64_cuda_compiler_versionNone.yaml
index fc44fa86a..a829b8def 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 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 f80356f8f..9a23fd003 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml b/.ci_support/linux_aarch64_cuda_compiler_versionNone.yaml
index 7372cef70..6acc4f092 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/linux_ppc64le_.yaml b/.ci_support/linux_ppc64le_.yaml
index 8cfe9d8e6..429da526c 100644
--- a/.ci_support/linux_ppc64le_.yaml
+++ b/.ci_support/linux_ppc64le_.yaml
@@ -1,5 +1,5 @@
 aws_crt_cpp:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/migrations/aws_c_endofapril26.yaml b/.ci_support/migrations/aws_c_endofapril26.yaml
new file mode 100644
index 000000000..0656b2494
--- /dev/null
+++ b/.ci_support/migrations/aws_c_endofapril26.yaml
@@ -0,0 +1,18 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for aws-c-* (end-of-april'26)
+  kind: version
+  migration_number: 1
+  exclude_pinned_pkgs: false
+  automerge: true
+migrator_ts: 1777397030
+aws_c_event_stream:
+  - '0.7.0'
+aws_c_http:
+  - '0.10.13'
+aws_c_s3:
+  - '0.12.2'
+aws_crt_cpp:
+  - '0.38.3'
+s2n:
+  - '1.7.2'
diff --git a/.ci_support/migrations/libboost188.yaml b/.ci_support/migrations/libboost188.yaml
deleted file mode 100644
index 6eca3fb6a..000000000
--- a/.ci_support/migrations/libboost188.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
-__migrator:
-  build_number: 1
-  kind: version
-  commit_message: "Rebuild for libboost 1.88"
-  migration_number: 1
-libboost_devel:
-- "1.88"
-libboost_headers:
-- "1.88"
-libboost_python_devel:
-- "1.88"
-migrator_ts: 1753251695.3315456
diff --git a/.ci_support/osx_64_.yaml b/.ci_support/osx_64_.yaml
index 515866d01..fa1801a06 100644
--- a/.ci_support/osx_64_.yaml
+++ b/.ci_support/osx_64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '11.0'
 aws_crt_cpp:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/osx_arm64_.yaml b/.ci_support/osx_arm64_.yaml
index 5325e74ac..e7db01481 100644
--- a/.ci_support/osx_arm64_.yaml
+++ b/.ci_support/osx_arm64_.yaml
@@ -3,7 +3,7 @@ MACOSX_DEPLOYMENT_TARGET:
 MACOSX_SDK_VERSION:
 - '11.0'
 aws_crt_cpp:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 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 2e31b420b..d1f859b5b 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.ci_support/win_64_cuda_compiler_versionNone.yaml b/.ci_support/win_64_cuda_compiler_versionNone.yaml
index d8b503e8b..c7aa309d1 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:
-- 0.37.4
+- 0.38.3
 aws_sdk_cpp:
 - 1.11.747
 azure_core_cpp:
diff --git a/.github/workflows/conda-build.yml b/.github/workflows/conda-build.yml
index 6420839f5..8f36b1c5d 100644
--- a/.github/workflows/conda-build.yml
+++ b/.github/workflows/conda-build.yml
@@ -23,26 +23,31 @@ jobs:
       matrix:
         include:
           - CONFIG: linux_64_cuda_compiler_version12.9
+            STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             os: ubuntu
             runs_on: ['ubuntu-latest']
             DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
           - CONFIG: linux_64_cuda_compiler_versionNone
+            STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             os: ubuntu
             runs_on: ['ubuntu-latest']
             DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
           - CONFIG: linux_aarch64_cuda_compiler_version12.9
+            STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             os: ubuntu
             runs_on: ['ubuntu-latest']
             DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
           - CONFIG: linux_aarch64_cuda_compiler_versionNone
+            STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             os: ubuntu
             runs_on: ['ubuntu-latest']
             DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
           - CONFIG: linux_ppc64le_
+            STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             os: ubuntu
             runs_on: ['ubuntu-latest']
@@ -119,7 +124,7 @@ jobs:
       env:
         # default value; make it explicit, as it needs to match with artefact
         # generation below. Not configurable for now, can be revisited later
-        CONDA_BLD_DIR: C:\bld
+        CONDA_BLD_PATH: C:\bld
         MINIFORGE_HOME: ${{ contains(runner.arch, 'ARM') && 'C' || 'D' }}:\Miniforge
         PYTHONUNBUFFERED: 1
         CONFIG: ${{ matrix.CONFIG }}
diff --git a/.gitignore b/.gitignore
index 47b5408a8..86a9c55b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
 # Ignore all files and folders in root
 *
 !/conda-forge.yml
+!.recipe_maintainers.json
 
 # 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.
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 41d47d5ec..07c0d6b6f 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -37,7 +37,7 @@ source:
     folder: cpp/submodules/parquet-testing
 
 build:
-  number: 0
+  number: 1
   # 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)]