Release 3.21.0 (#6211)

Co-authored-by: Roja Reddy Sareddy <rsareddy@amazon.com>

Author: rsareddy0329

CHANGELOG.md

@@ -1,5 +1,28 @@
 # Changelog
 
+## v3.21.0 (2026-08-25)
+
+### New Features
+
+- feat(train): Add inherited list_supported_models to BaseTrainer (#6187)
+
+### Bug Fixes
+
+- fix(core,mlops): honor caller region in feature_store ingest_dataframe and stop telemetry from blocking SDK calls (#6197)
+- fix(core): anchor tar member validation to extract_path (#6195)
+- fix(rlaif): accept preset reward_prompt template names (#6192)
+- fix(serve): pre-deploy JumpStart benchmark data + public HuggingFace download helper (#6175)
+- fix(tgi): honor S3 model_path as weight source for TGI builds (#5964)
+
+### Tests
+
+- change(train): gate deep integ tests behind gpu_intensive, add shallow submit-then-stop suite (#6176)
+- fix(ci,train): run fast-integ-tests in CodeBuild and give shallow RLVR cases a reward signal (#6207)
+- fix(train): make CPT integ tests dry run for optimize for capacity constraints (#6194)
+- test(serve): add skip_in_pr_check marker for hang-prone integ tests (#6190)
+- test(train): add unit test to prevent future regression of preset reward function (#6182)
+
+
 ## v3.20.0 (2026-08-14)
 
 ### New Features

VERSION

@@ -1 +1 @@
-3.20.0
+3.21.0

pyproject.toml

@@ -32,10 +32,10 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-  "sagemaker-core>=2.20.0,<3.0.0",
-  "sagemaker-train>=1.20.0,<2.0.0",
-  "sagemaker-serve>=1.20.0,<2.0.0",
-  "sagemaker-mlops>=1.20.0,<2.0.0",
+  "sagemaker-core>=2.21.0,<3.0.0",
+  "sagemaker-train>=1.21.0,<2.0.0",
+  "sagemaker-serve>=1.21.0,<2.0.0",
+  "sagemaker-mlops>=1.21.0,<2.0.0",
 ]
 
 [project.optional-dependencies]

sagemaker-core/CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## v2.21.0 (2026-08-25)
+
+### Bug Fixes
+
+- fix(core,mlops): honor caller region in feature_store ingest_dataframe and stop telemetry from blocking SDK calls (#6197)
+- fix(core): anchor tar member validation to extract_path (#6195)
+
+
 ## v2.20.0 (2026-08-14)
 
 ### Bug Fixes

sagemaker-core/VERSION

@@ -1 +1 @@
-2.20.0
+2.21.0

sagemaker-mlops/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## v1.21.0 (2026-08-25)
+
+### Bug Fixes
+
+- fix(core,mlops): honor caller region in feature_store ingest_dataframe and stop telemetry from blocking SDK calls (#6197)
+
+
 ## v1.20.0 (2026-08-14)
 
 ### Bug Fixes

sagemaker-mlops/VERSION

@@ -1 +1 @@
-1.20.0
+1.21.0

sagemaker-mlops/pyproject.toml

@@ -22,9 +22,9 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-    "sagemaker-core>=2.20.0",
-    "sagemaker-train>=1.20.0",
-    "sagemaker-serve>=1.20.0",
+    "sagemaker-core>=2.21.0",
+    "sagemaker-train>=1.21.0",
+    "sagemaker-serve>=1.21.0",
     "cryptography>=46.0.0",
     "boto3>=1.42.2,<2.0",
     "botocore>=1.42.2,<2.0",

sagemaker-serve/CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## v1.21.0 (2026-08-25)
+
+### Bug Fixes
+
+- fix(serve): pre-deploy JumpStart benchmark data + public HuggingFace download helper (#6175)
+- fix(tgi): honor S3 model_path as weight source for TGI builds (#5964)
+
+### Tests
+
+- test(serve): add skip_in_pr_check marker for hang-prone integ tests (#6190)
+
+
 ## v1.20.0 (2026-08-14)
 
 ### New Features

sagemaker-serve/VERSION

@@ -1 +1 @@
-1.20.0
+1.21.0