Drop support for Node.js 18 and 20

- Update CI test matrix to only test Node.js 22.x and latest
- Remove Node.js 18 and 20 CodeBuild configurations
- Update release pipeline to remove Node.js 18/20 dependencies
- Minimum supported Node.js version is now 22

Author: Lucas McDonald

.github/workflows/shared-ci.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: ['18.x', '20.x', '22.x', 'latest']
+        node-version: ['22.x', 'latest']
         test-type: ['node', 'browser']
         # Determine test categories based on whether testing published packages or source code:
         # - Testing published packages: only run vector tests (don't have build artifacts to test coverage or compliance)

buildspec.yml

@@ -3,22 +3,10 @@ version: 0.2
 batch:
   fast-fail: false
   build-list:
-    - identifier: testNodejs20
-      buildspec: codebuild/nodejs20.yml
-      env:
-        image: aws/codebuild/standard:5.0
-    - identifier: testNodejs18
-      buildspec: codebuild/nodejs18.yml
-      env:
-        image: aws/codebuild/standard:5.0
     - identifier: testNodejs16
       buildspec: codebuild/nodejs16.yml
       env:
         image: aws/codebuild/standard:5.0
-    - identifier: testBrowser18
-      buildspec: codebuild/browser18.yml
-      env:
-        image: aws/codebuild/standard:5.0
     - identifier: compliance
       buildspec: codebuild/compliance.yml
       env:
@@ -29,21 +17,3 @@ batch:
         variables:
           PUBLISH_LOCAL: "true"
         image: aws/codebuild/standard:5.0
-    - identifier: testVectorsNodejs18
-      buildspec: codebuild/test_vectors/nodejs18.yml
-      env:
-        variables:
-          PUBLISH_LOCAL: "true"
-        image: aws/codebuild/standard:5.0
-    - identifier: testVectorsNodejs20
-      buildspec: codebuild/test_vectors/nodejs20.yml
-      env:
-        variables:
-          PUBLISH_LOCAL: "true"
-        image: aws/codebuild/standard:5.0
-    - identifier: testVectorsBrowser18
-      buildspec: codebuild/test_vectors/browser18.yml
-      env:
-        variables:
-          PUBLISH_LOCAL: "true"
-        image: aws/codebuild/standard:5.0

codebuild/browser18.yml

@@ -9,22 +9,14 @@ batch:
       buildspec: codebuild/compliance.yml
 
 # Unit Tests
-    - identifier: testNodejs20
-      buildspec: codebuild/nodejs20.yml
+    - identifier: testNodejs16
+      buildspec: codebuild/nodejs16.yml
       env:
         image: aws/codebuild/standard:5.0
-    - identifier: testBrowser18
-      buildspec: codebuild/browser18.yml
 
 # Integration Tests
-    - identifier: testVectorsNodejs20
-      buildspec: codebuild/test_vectors/nodejs20.yml
-      env:
-        variables:
-          PUBLISH_LOCAL: "true"
-        image: aws/codebuild/standard:5.0
-    - identifier: testVectorsBrowser18
-      buildspec: codebuild/test_vectors/browser18.yml
+    - identifier: testVectorsNodejs16
+      buildspec: codebuild/test_vectors/nodejs16.yml
       env:
         variables:
           PUBLISH_LOCAL: "true"
@@ -34,10 +26,8 @@ batch:
     - identifier: version
       depend-on:
         - compliance
-        - testNodejs20
-        - testBrowser18
-        - testVectorsNodejs20
-        - testVectorsBrowser18
+        - testNodejs16
+        - testVectorsNodejs16
       buildspec: codebuild/release/version.yml
       env:
         image: aws/codebuild/standard:6.0
@@ -54,15 +44,7 @@ batch:
     - identifier: validateNodejs
       depend-on:
         - publish
-      buildspec: codebuild/test_vectors/nodejs20.yml
-      env:
-        variables:
-          PUBLISH_LOCAL: "false"
-        image: aws/codebuild/standard:5.0
-    - identifier: validateBrowser
-      depend-on:
-        - publish
-      buildspec: codebuild/test_vectors/browser18.yml
+      buildspec: codebuild/test_vectors/nodejs16.yml
       env:
         variables:
           PUBLISH_LOCAL: "false"