diff --git a/.circleci/config.yml b/.circleci/config.yml
index a3605457f..126ebe384 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -439,11 +439,15 @@ workflows:
       - build:
           name: build-12
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
       - build:
           name: build-13
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
+      - build:
+          name: build-14
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
 
       - check-style
       - check-sql-snapshots
@@ -451,151 +455,225 @@ workflows:
       - test-citus:
           name: 'test-12_check-multi'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-multi
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-multi-1'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-multi-1
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-mx'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-multi-mx
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-vanilla'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-vanilla
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-isolation'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-isolation
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-worker'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-worker
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-operations'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-operations
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-follower-cluster'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-follower-cluster
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-columnar'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-columnar
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-columnar-isolation'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-columnar-isolation
           requires: [build-12]
       - tap-test-citus:
           name: 'test_12_tap-recovery'
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           suite: recovery
           requires: [build-12]
       - test-citus:
           name: 'test-12_check-failure'
           pg_major: 12
           image: citus/failtester
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           make: check-failure
           requires: [build-12]
 
       - test-citus:
           name: 'test-13_check-multi'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-multi
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-multi-1'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-multi-1
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-mx'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-multi-mx
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-vanilla'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-vanilla
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-isolation'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-isolation
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-worker'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-worker
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-operations'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-operations
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-follower-cluster'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-follower-cluster
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-columnar'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-columnar
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-columnar-isolation'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-columnar-isolation
           requires: [build-13]
       - tap-test-citus:
           name: 'test_13_tap-recovery'
           pg_major: 13
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           suite: recovery
           requires: [build-13]
       - test-citus:
           name: 'test-13_check-failure'
           pg_major: 13
           image: citus/failtester
-          image_tag: '13.2'
+          image_tag: '13.2-dev202108191715'
           make: check-failure
           requires: [build-13]
 
+      - test-citus:
+          name: 'test-14_check-multi'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-multi
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-multi-1'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-multi-1
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-mx'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-multi-mx
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-vanilla'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-vanilla
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-isolation'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-isolation
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-worker'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-worker
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-operations'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-operations
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-follower-cluster'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-follower-cluster
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-columnar'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-columnar
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-columnar-isolation'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          make: check-columnar-isolation
+          requires: [build-14]
+      - tap-test-citus:
+          name: 'test_14_tap-recovery'
+          pg_major: 14
+          image_tag: '14beta3-dev202108191715'
+          suite: recovery
+          requires: [build-14]
+      - test-citus:
+          name: 'test-14_check-failure'
+          pg_major: 14
+          image: citus/failtester
+          image_tag: '14beta3-dev202108191715'
+          make: check-failure
+          requires: [build-14]
+
       - test-pg-upgrade:
           name: 'test-12-13_check-pg-upgrade'
           old_pg_major: 12
@@ -603,10 +681,17 @@ workflows:
           image_tag: 12-13
           requires: [build-12,build-13]
 
+      - test-pg-upgrade:
+          name: 'test-13-14_check-pg-upgrade'
+          old_pg_major: 13
+          new_pg_major: 14
+          image_tag: 12-13-14
+          requires: [build-13,build-14]
+
       - test-citus-upgrade:
           name: test-12_check-citus-upgrade
           pg_major: 12
-          image_tag: '12.6'
+          image_tag: '12.6-dev202108191715'
           requires: [build-12]
 
       - ch_benchmark: