diff --git a/.github/workflows/shared-ci.yml b/.github/workflows/shared-ci.yml
index 74ef2c067..88233a595 100644
--- a/.github/workflows/shared-ci.yml
+++ b/.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', '24.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)
diff --git a/codebuild/browser18.yml b/codebuild/browser18.yml
deleted file mode 100644
index 19a17bb0d..000000000
--- a/codebuild/browser18.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-
-phases:
-  install:
-    commands:
-      - n 18
-      - npm ci --unsafe-perm
-      - npm run build
-  build:
-    commands:
-      - npm -v
-      - node -v
-      - npm run coverage-browser
diff --git a/codebuild/compliance.yml b/codebuild/compliance.yml
deleted file mode 100644
index 209f0116a..000000000
--- a/codebuild/compliance.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-
-phases:
-  install:
-    commands:
-      - n 18
-      - npm ci --unsafe-perm
-  build:
-    commands:
-      - npm run lint
-      - npm run test_conditions
diff --git a/codebuild/nodejs16.yml b/codebuild/nodejs16.yml
deleted file mode 100644
index fd7421a15..000000000
--- a/codebuild/nodejs16.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-
-phases:
-  install:
-    commands:
-      - n 16
-      - node -v
-      - npm -v
-      - npm ci --unsafe-perm
-      - npm run build
-  build:
-    commands:
-      - npm -v
-      - node -v
-      - npm run coverage-node
diff --git a/codebuild/nodejs18.yml b/codebuild/nodejs18.yml
deleted file mode 100644
index 6b43b4055..000000000
--- a/codebuild/nodejs18.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-
-phases:
-  install:
-    commands:
-      - n 18
-      - node -v
-      - npm -v
-      - npm ci --unsafe-perm
-      - npm run build
-  build:
-    commands:
-      - npm -v
-      - node -v
-      - npm run coverage-node
diff --git a/codebuild/nodejs20.yml b/codebuild/nodejs20.yml
deleted file mode 100644
index 76479dc0a..000000000
--- a/codebuild/nodejs20.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-
-phases:
-  install: 
-    commands:
-      - TMP_ROLE=$(aws sts assume-role --role-arn "arn:aws:iam::370957321024:role/GitHub-CI-MPL-Dafny-Role-us-west-2" --role-session-name "CB-TestVectorResources")
-      - export TMP_ROLE
-      - export AWS_ACCESS_KEY_ID=$(echo "${TMP_ROLE}" | jq -r '.Credentials.AccessKeyId')
-      - export AWS_SECRET_ACCESS_KEY=$(echo "${TMP_ROLE}" | jq -r '.Credentials.SecretAccessKey')
-      - export AWS_SESSION_TOKEN=$(echo "${TMP_ROLE}" | jq -r '.Credentials.SessionToken')
-      - aws sts get-caller-identity
-      
-      - n 20
-      - node --version ; npm --version
-      - npm ci --unsafe-perm
-      - npm run build
-  build:
-    commands:
-      - npm run coverage-node
diff --git a/codebuild/release/prod-release.yml b/codebuild/release/prod-release.yml
deleted file mode 100644
index 40f574929..000000000
--- a/codebuild/release/prod-release.yml
+++ /dev/null
@@ -1,69 +0,0 @@
-version: 0.2
-
-batch:
-  fast-fail: true 
-  build-graph:
-
-# Lint and specification compliance
-    - identifier: compliance
-      buildspec: codebuild/compliance.yml
-
-# Unit Tests
-    - identifier: testNodejs20
-      buildspec: codebuild/nodejs20.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
-      env:
-        variables:
-          PUBLISH_LOCAL: "true"
-        image: aws/codebuild/standard:5.0
-
-# Version the project and push git commits and tags
-    - identifier: version
-      depend-on:
-        - compliance
-        - testNodejs20
-        - testBrowser18
-        - testVectorsNodejs20
-        - testVectorsBrowser18
-      buildspec: codebuild/release/version.yml
-      env:
-        image: aws/codebuild/standard:6.0
-
-# Publish the release to npm
-    - identifier: publish
-      depend-on:
-        - version
-      buildspec: codebuild/release/publish.yml
-      env:
-        image: aws/codebuild/standard:6.0
-
-# Validate that the published versions are available
-    - 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
-      env:
-        variables:
-          PUBLISH_LOCAL: "false"
-        image: aws/codebuild/standard:5.0
diff --git a/codebuild/release/publish.yml b/codebuild/release/publish.yml
deleted file mode 100644
index 3463e7b8d..000000000
--- a/codebuild/release/publish.yml
+++ /dev/null
@@ -1,50 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    BRANCH: "master"
-    # An explicit distribution tag
-    DIST_TAG: "latest"
-  secrets-manager:
-     OTP_SECRET_KEY: npm/aws-crypto-tools-ci-bot/2FA:OTP_SECRET_KEY
-     NPM_TOKEN: npm/aws-crypto-tools-ci-bot/2FA:NPM_TOKEN
-
-phases:
-  install:
-    commands:
-      - npm ci --unsafe-perm
-      # Install `otplib` to extract the OTP from the npm 2FA secret
-      - npm install otplib --no-save
-      - npm run build
-    runtime-versions:
-      nodejs: 16
-  pre_build:
-    commands:
-      - git checkout $BRANCH
-  build:
-    commands:
-      # Extract the otp using the secrets environment variables from above.
-      # This will wait for the next token. This is because npm uses
-      # TOTP and the tokens time out after 30 seconds. If the process just
-      # extracted the token then the lifetime for this token
-      # would be very random. This will maximize the amount of time
-      # available on the OTP to publish.
-      - >-
-        OTP=`node -e "
-          auth=require('otplib').authenticator;
-          setTimeout(() =>
-            console.log(auth.generate(process.env.OTP_SECRET_KEY)),
-            auth.timeRemaining() * 1000);
-          "`
-      # npm will only expand env vars inside .npmrc
-      # NOTE the ' this is to keep the env var NPM_TOKEN from expanding!
-      - echo '//registry.npmjs.org/:_authToken=${NPM_TOKEN}' > .npmrc
-      # Now we publish to npm.
-      # This is going to use the OTP generated above and the NPM_TOKEN
-      # environment variable. This will only publish things that are
-      # missing from npm. It is therefore safe to run repeatedly.
-      - npx lerna publish from-package --yes --otp $OTP --dist-tag $DIST_TAG
-      # remove after publishing
-      - rm .npmrc
-
diff --git a/codebuild/release/version.yml b/codebuild/release/version.yml
deleted file mode 100644
index e5639ad1d..000000000
--- a/codebuild/release/version.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    BRANCH: "master"
-    # An explicit version bump
-    VERSION_BUMP: ""
-  git-credential-helper: yes
-
-phases:
-  install:
-    commands:
-      - npm ci --unsafe-perm
-    runtime-versions:
-      nodejs: 16
-  pre_build:
-    commands:
-      - git config --global user.name "aws-crypto-tools-ci-bot"
-      - git config --global user.email "no-reply@noemail.local"
-      - git checkout $BRANCH
-  build:
-    commands:
-      # Generate new version and CHANGELOG entry and push it
-      - npx lerna version --conventional-commits --git-remote origin --yes ${VERSION_BUMP:+$VERSION_BUMP --force-publish}
-      # Log the commit for posterity
-      - git log -n 1
diff --git a/codebuild/test_vectors/browser18.yml b/codebuild/test_vectors/browser18.yml
deleted file mode 100644
index 4ae2a8e97..000000000
--- a/codebuild/test_vectors/browser18.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    NPM_CONFIG_UNSAFE_PERM: true
-
-phases:
-  install:
-    commands:
-      - n 18
-      - npm ci --unsafe-perm
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run build
-        fi
-  build:
-    commands:
-      - npm -v
-      - node -v
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run verdaccio-publish
-        fi
-      - npm run verdaccio-browser-decrypt
-      - npm run verdaccio-browser-encrypt
diff --git a/codebuild/test_vectors/nodejs16.yml b/codebuild/test_vectors/nodejs16.yml
deleted file mode 100644
index 42e78f246..000000000
--- a/codebuild/test_vectors/nodejs16.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    NPM_CONFIG_UNSAFE_PERM: true
-
-phases:
-  install:
-    commands:
-      - n 16
-      - npm ci --unsafe-perm
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run build
-        fi
-  build:
-    commands:
-      - node -v
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run verdaccio-publish
-        fi
-      - npm run verdaccio-node-decrypt
-      - npm run verdaccio-node-encrypt
diff --git a/codebuild/test_vectors/nodejs18.yml b/codebuild/test_vectors/nodejs18.yml
deleted file mode 100644
index 982c2b1b7..000000000
--- a/codebuild/test_vectors/nodejs18.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    NPM_CONFIG_UNSAFE_PERM: true
-
-phases:
-  install:
-    commands:
-      - n 18
-      - npm ci --unsafe-perm
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run build
-        fi
-  build:
-    commands:
-      - node -v
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run verdaccio-publish
-        fi
-      - npm run verdaccio-node-decrypt
-      - npm run verdaccio-node-encrypt
diff --git a/codebuild/test_vectors/nodejs20.yml b/codebuild/test_vectors/nodejs20.yml
deleted file mode 100644
index 3a2657beb..000000000
--- a/codebuild/test_vectors/nodejs20.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-version: 0.2
-
-env:
-  variables:
-    NODE_OPTIONS: "--max-old-space-size=4096"
-    NPM_CONFIG_UNSAFE_PERM: true
-
-phases:
-  install:
-    commands:
-      - n 20
-      - npm ci --unsafe-perm
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run build
-        fi
-  build:
-    commands:
-      - node -v
-      - |-
-        if [ "$PUBLISH_LOCAL" = "true" ]; then
-          npm run verdaccio-publish
-        fi
-      - npm run verdaccio-node-decrypt
-      - npm run verdaccio-node-encrypt