Dropping Python 3.8

Author: leandrodamascena

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -58,7 +58,6 @@ body:
     attributes:
       label: AWS Lambda function runtime
       options:
-        - "3.8"
         - "3.9"
         - "3.10"
         - "3.11"

.github/ISSUE_TEMPLATE/static_typing.yml

@@ -25,7 +25,6 @@ body:
     attributes:
       label: AWS Lambda function runtime
       options:
-        - "3.8"
         - "3.9"
         - "3.10"
         - "3.11"

.github/workflows/layer_govcloud.yml

@@ -48,7 +48,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311
@@ -94,7 +93,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311
@@ -163,7 +161,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311

.github/workflows/layer_govcloud_verify.yml

@@ -28,7 +28,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311
@@ -59,7 +58,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311
@@ -91,7 +89,6 @@ jobs:
     strategy:
       matrix:
         layer:
-          - AWSLambdaPowertoolsPythonV3-python38
           - AWSLambdaPowertoolsPythonV3-python39
           - AWSLambdaPowertoolsPythonV3-python310
           - AWSLambdaPowertoolsPythonV3-python311

.github/workflows/reusable_deploy_v3_layer_stack.yml

@@ -78,7 +78,7 @@ jobs:
                  "eu-north-1", "eu-south-1", "eu-south-2", "eu-west-1", "eu-west-2", "eu-west-3",
                  "il-central-1", "me-central-1", "me-south-1", "sa-east-1", "us-east-1",
                  "us-east-2", "us-west-1", "us-west-2"]
-        python-version: ["3.8","3.9","3.10","3.11","3.12","3.13"]
+        python-version: ["3.9","3.10","3.11","3.12","3.13"]
         include:
           - region: "af-south-1"
             has_arm64_support: "true"

aws_lambda_powertools/utilities/idempotency/serialization/functions.py

@@ -5,7 +5,7 @@
 if sys.version_info >= (3, 10):
     from types import UnionType  # Available in Python 3.10+
 else:
-    UnionType = Union  # Fallback for Python 3.8 and 3.9
+    UnionType = Union  # Fallback for Python 3.9
 
 from aws_lambda_powertools.utilities.idempotency.exceptions import (
     IdempotencyModelTypeError,

docs/automation.md

@@ -106,17 +106,13 @@ Next, we deploy these CDK Assets to the beta account across all AWS regions. Onc
 
 ```mermaid
 graph LR
-    Fetch[Fetch PyPi release] --> P38[<strong>Python 3.8</strong>]
-    Fetch --> P39[<strong>Python 3.9</strong>]
+    Fetch[Fetch PyPi release] --> P39[<strong>Python 3.9</strong>]
     Fetch --> P310[<strong>Python 3.10</strong>]
     Fetch --> P311[<strong>Python 3.11</strong>]
     Fetch --> P312[<strong>Python 3.12</strong>]
     Fetch --> P313[<strong>Python 3.13</strong>]
 
     subgraph build ["LAYER BUILD"]
-      P38 --> P38x86[build x86_64]
-      P38 --> P38arm64[build arm64]
-
       P39 --> P39x86[build x86_64]
       P39 --> P39arm64[build arm64]
       P310 --> P310x86[build x86_64]
@@ -127,8 +123,6 @@ graph LR
       P312 --> P312arm64[build arm64]
       P313 --> P313x86[build x86_64]
       P313 --> P313arm64[build arm64]
-      P38x86 --> CDKP1[CDK Package]
-      P38arm64 --> CDKP1[CDK Package]
       P39x86 --> CDKP2[CDK Package]
       P39arm64 --> CDKP2[CDK Package]
       P310x86 --> CDKP3[CDK Package]
@@ -142,7 +136,6 @@ graph LR
     end
 
     subgraph beta ["BETA (all regions)"]
-      CDKP1 --> DeployBeta[Deploy to Beta]
       CDKP2 --> DeployBeta
       CDKP3 --> DeployBeta
       CDKP4 --> DeployBeta

layer_v3/layer_constructors/tests/unit/test_new_cdk_constructor_stack.py

@@ -25,7 +25,6 @@ def test_with_no_configuration_constructor():
 @pytest.mark.parametrize(
     "python_version",
     [
-        lambda_.Runtime.PYTHON_3_8,
         lambda_.Runtime.PYTHON_3_9,
         lambda_.Runtime.PYTHON_3_10,
         lambda_.Runtime.PYTHON_3_11,
@@ -62,7 +61,6 @@ def test_with_different_python_version_x86_64(python_version):
 @pytest.mark.parametrize(
     "python_version",
     [
-        lambda_.Runtime.PYTHON_3_8,
         lambda_.Runtime.PYTHON_3_9,
         lambda_.Runtime.PYTHON_3_10,
         lambda_.Runtime.PYTHON_3_11,