diff --git a/.circleci/config.yml b/.circleci/config.yml
index e89c2ce451d..475c3a676e2 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -107,13 +107,6 @@ aliases:
         - /.*-stable/
         - gh-pages
 
-  - &filter-only-tagged-releases
-    tags:
-      only: /v[0-9]+(\.[0-9]+)*(\-rc(\.[0-9]+)?)?/
-    branches:
-      only:
-        - /.*-stable/
-
   # Dependency Management
   - &install-ndk
     name: Install Android NDK
@@ -466,11 +459,9 @@ jobs:
       - run:
           name: Build iOS app for simulator
           command: yarn run build-ios-e2e
-      # TODO: Fix these failing tests.
-      - run: *display-broken-tests-warning
       - run:
-          name: Run Detox Tests (Disabled)
-          command: ./scripts/circleci/exec_author_check.sh yarn run test-ios-e2e
+          name: Run Detox Tests
+          command: yarn run test-ios-e2e
 
   # Set up an Android environment for downstream jobs
   test_android:
@@ -548,49 +539,48 @@ jobs:
   # Issues will be posted to the PR itself via GitHub bots.
   # This workflow should only fail if the bots fail to run.
   analyze_pr:
-    <<: *js_defaults
+    <<: *defaults
+    docker:
+      - image: circleci/node:10
+    environment:
+      - PATH: "/opt/yarn/yarn-v1.5.1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
     steps:
-      - attach_workspace:
-          at: ~/react-native
+      - checkout
+      - run: *setup-artifacts
 
-      - restore-cache: *restore-cache-analysis
+      - restore-cache: *restore-yarn-cache
       - run: *yarn
-      - run:
-          name: Install Additional Dependencies
-          command: |
-            if [ -n "$CIRCLE_PR_NUMBER" ]; then
-              yarn add github@0.2.4
-              cd bots
-              yarn install --non-interactive --cache-folder ~/.cache/yarn
-            else
-              echo "Skipping dependency installation."
-            fi
-      - save-cache: *save-cache-analysis
 
-      - run:
-          name: Analyze Pull Request
-          command: |
-            # DANGER_GITHUB_API_TOKEN=React-Linter public_repo access token
-            if [ -n "$CIRCLE_PR_NUMBER" ]; then
-              cd bots && DANGER_GITHUB_API_TOKEN="80aa64c50f38a267e9ba""575d41d528f9c234edb8" yarn danger
-            else
-              echo "Skipping pull request analysis."
-            fi
-          when: always
       - run:
           name: Analyze Code
           command: |
             # GITHUB_TOKEN=eslint-bot public_repo access token
             if [ -n "$CIRCLE_PR_NUMBER" ]; then
-              GITHUB_TOKEN="af6ef0d15709bc91d""06a6217a5a826a226fb57b7" CI_USER=$CIRCLE_PROJECT_USERNAME CI_REPO=$CIRCLE_PROJECT_REPONAME PULL_REQUEST_NUMBER=$CIRCLE_PR_NUMBER scripts/circleci/analyze_code.sh
+              echo -e "\\x1B[36mInstalling additional dependencies\\x1B[0m"; yarn add @octokit/rest@15.10.0
+              echo -e "\\x1B[36mAnalyzing code\\x1B[0m"; GITHUB_TOKEN="af6ef0d15709bc91d""06a6217a5a826a226fb57b7" ./scripts/circleci/analyze_code.sh
             else
               echo "Skipping code analysis."
             fi
           when: always
 
+      - restore-cache: *restore-cache-analysis
+      - run:
+          name: Analyze Pull Request
+          command: |
+            # DANGER_GITHUB_API_TOKEN=React-Linter public_repo access token
+            if [ -n "$CIRCLE_PR_NUMBER" ]; then
+              cd bots
+              yarn install --non-interactive --cache-folder ~/.cache/yarn
+              DANGER_GITHUB_API_TOKEN="80aa64c50f38a267e9ba""575d41d528f9c234edb8" yarn danger
+            else
+              echo "Skipping pull request analysis."
+            fi
+          when: always
+      - save-cache: *save-cache-analysis
+
   # Publishes new version onto npm
   # Only works on stable branches when a properly tagged commit is pushed
-  publish:
+  publish_npm_package:
     <<: *android_defaults
     steps:
       - checkout
@@ -598,9 +588,29 @@ jobs:
       - restore-cache: *restore-yarn-cache
       - run: *yarn
 
-      - run:
-          name: Authenticate with npm
-          command: echo "//registry.npmjs.org/:_authToken=${CIRCLE_NPM_TOKEN}" > ~/.npmrc
+      # Configure Android SDK and related dependencies
+      - run: *configure-android-path
+      - run: *install-android-build-dependencies
+
+      - restore-cache: *restore-cache-android-packages
+      - run: *install-android-packages
+
+      # Install Android NDK
+      - run: *create-ndk-directory
+      - restore-cache: *restore-cache-ndk
+      - run: *install-ndk
+
+      # Fetch dependencies using Buck
+      - restore-cache: *restore-cache-downloads-buck
+      - run: *install-buck
+      - run: *download-dependencies-buck
+
+      # Fetch dependencies using Gradle
+      - restore-cache: *restore-cache-downloads-gradle
+      - run: *download-dependencies-gradle
+
+      - restore-cache: *restore-yarn-cache
+      - run: *yarn
 
       - run:
           name: Authenticate with npm
@@ -660,39 +670,19 @@ workflows:
           requires:
             - checkout_code
 
-  # Only runs on PRs
-  analyze:
-    jobs:
-      # Checkout repo and run Yarn
-      - checkout_code:
-          filters: *filter-ignore-master-stable
-
-      # Run code checks
-      - analyze_pr:
-          filters: *filter-ignore-master-stable
-          requires:
-            - checkout_code
-
-  test-and-deploy:
-    jobs:
-      - checkout_code:
-          # required since `publish` has tag filters
-          filters: *filter-only-tagged-releases
-      - test_javascript:
-          requires:
-            - checkout_code
-      - test_objc:
-          requires:
-            - checkout_code
-      - test_android:
-          requires:
-            - checkout_code
-
       # Only runs on vX.X.X tags if all tests are green
-      - publish:
+      - publish_npm_package:
+          filters:
+            branches:
+              only:
+                - /.*-stable/
+            tags:
+              only: /v[0-9]+(\.[0-9]+)*(\-rc(\.[0-9]+)?)?/
           requires:
             - test_javascript
             - test_objc
             - test_android
-          filters: *filter-only-tagged-releases
 
+      # Run code checks
+      - analyze_pr:
+          filters: *filter-ignore-master-stable