diff --git a/.circleci/config-2_1.yml b/.circleci/config-2_1.yml
index 81663f724b..67dac9e09a 100644
--- a/.circleci/config-2_1.yml
+++ b/.circleci/config-2_1.yml
@@ -117,7 +117,7 @@ executors:
         type: string
         default: medium
     docker:
-      - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+      - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: << parameters.exec_resource_class >>
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -475,7 +475,7 @@ commands:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
@@ -503,7 +503,7 @@ commands:
           # which we do via the `circleci` cli tool.
 
           cd cassandra-dtest
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
 
           if [ -n '<<parameters.extra_env_args>>' ]; then
@@ -539,7 +539,7 @@ commands:
             echo "cat /tmp/split_dtest_tests_<<parameters.file_tag>>_final.txt"
             cat /tmp/split_dtest_tests_<<parameters.file_tag>>_final.txt
 
-            source ~/env/bin/activate
+            source ~/env3.6/bin/activate
             export PATH=$JAVA_HOME/bin:$PATH
             if [ -n '<<parameters.extra_env_args>>' ]; then
               export <<parameters.extra_env_args>>
diff --git a/.circleci/config.yml b/.circleci/config.yml
index b8aa6eaf98..dda7046932 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   j8_jvm_upgrade_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -94,7 +94,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -175,7 +175,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -194,18 +194,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_without_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_without_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -233,7 +233,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_upgradetests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -252,7 +252,7 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
@@ -265,7 +265,7 @@ jobs:
           # which we do via the `circleci` cli tool.
 
           cd cassandra-dtest
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
 
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
@@ -289,7 +289,7 @@ jobs:
           echo "cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt"
           cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt
 
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
             export RUN_STATIC_UPGRADE_MATRIX=true
@@ -332,7 +332,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_unit_tests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -424,7 +424,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-with-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -443,18 +443,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_with_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_with_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -482,7 +482,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_jvm_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -574,7 +574,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_long:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -620,7 +620,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_compression:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -712,7 +712,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtest_jars_build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1810-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
diff --git a/.circleci/config.yml.HIGHRES b/.circleci/config.yml.HIGHRES
index c21ad30d91..cd52b72c25 100644
--- a/.circleci/config.yml.HIGHRES
+++ b/.circleci/config.yml.HIGHRES
@@ -2,7 +2,7 @@ version: 2
 jobs:
   j8_jvm_upgrade_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -94,7 +94,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -175,7 +175,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -194,18 +194,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_without_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_without_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -233,7 +233,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_upgradetests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -252,7 +252,7 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
@@ -265,7 +265,7 @@ jobs:
           # which we do via the `circleci` cli tool.
 
           cd cassandra-dtest
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
 
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
@@ -289,7 +289,7 @@ jobs:
           echo "cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt"
           cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt
 
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
             export RUN_STATIC_UPGRADE_MATRIX=true
@@ -332,7 +332,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_unit_tests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -424,7 +424,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-with-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -443,18 +443,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_with_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_with_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -482,7 +482,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_jvm_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -574,7 +574,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_long:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -620,7 +620,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_compression:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: xlarge
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -712,7 +712,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtest_jars_build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
diff --git a/.circleci/config.yml.LOWRES b/.circleci/config.yml.LOWRES
index b8aa6eaf98..d49ace5295 100644
--- a/.circleci/config.yml.LOWRES
+++ b/.circleci/config.yml.LOWRES
@@ -2,7 +2,7 @@ version: 2
 jobs:
   j8_jvm_upgrade_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -94,7 +94,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -175,7 +175,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -194,18 +194,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_without_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_without_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_without_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_without_vnodes_raw /tmp/all_dtest_tests_j8_without_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_without_vnodes_raw > /tmp/all_dtest_tests_j8_without_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_without_vnodes > /tmp/split_dtest_tests_j8_without_vnodes.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_without_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_without_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_without_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_without_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_without_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -233,7 +233,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_upgradetests-no-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -252,7 +252,7 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
@@ -265,7 +265,7 @@ jobs:
           # which we do via the `circleci` cli tool.
 
           cd cassandra-dtest
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
 
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
@@ -289,7 +289,7 @@ jobs:
           echo "cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt"
           cat /tmp/split_dtest_tests_j8_upgradetests_without_vnodes_final.txt
 
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           if [ -n 'RUN_STATIC_UPGRADE_MATRIX=true' ]; then
             export RUN_STATIC_UPGRADE_MATRIX=true
@@ -332,7 +332,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_unit_tests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -424,7 +424,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtests-with-vnodes:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -443,18 +443,18 @@ jobs:
           # if additional dependencies were added to requirmeents.txt and the docker image hasn't been updated
           # we'd have to install it here at runtime -- which will make things slow, so do yourself a favor and
           # rebuild the docker image! (it automatically pulls the latest requirements.txt on build)
-          source ~/env/bin/activate
+          source ~/env3.6/bin/activate
           export PATH=$JAVA_HOME/bin:$PATH
           pip3 install --upgrade -r ~/cassandra-dtest/requirements.txt
           pip3 freeze
     - run:
         name: Determine Tests to Run (j8_with_vnodes)
         no_output_timeout: 5m
-        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
+        command: "# reminder: this code (along with all the steps) is independently executed on every circle container\n# so the goal here is to get the circleci script to return the tests *this* container will run\n# which we do via the `circleci` cli tool.\n\ncd cassandra-dtest\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\n\nif [ -n '' ]; then\n  export \nfi\n\necho \"***Collected DTests (j8_with_vnodes)***\"\nset -eo pipefail && ./run_dtests.py --use-vnodes --skip-resource-intensive-tests --dtest-print-tests-only --dtest-print-tests-output=/tmp/all_dtest_tests_j8_with_vnodes_raw --cassandra-dir=../cassandra\nif [ -z '' ]; then\n  mv /tmp/all_dtest_tests_j8_with_vnodes_raw /tmp/all_dtest_tests_j8_with_vnodes\nelse\n  grep -e '' /tmp/all_dtest_tests_j8_with_vnodes_raw > /tmp/all_dtest_tests_j8_with_vnodes || { echo \"Filter did not match any tests! Exiting build.\"; exit 0; }\nfi\nset -eo pipefail && circleci tests split --split-by=timings --timings-type=classname /tmp/all_dtest_tests_j8_with_vnodes > /tmp/split_dtest_tests_j8_with_vnodes.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes.txt | tr '\\n' ' ' > /tmp/split_dtest_tests_j8_with_vnodes_final.txt\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n"
     - run:
         name: Run dtests (j8_with_vnodes)
         no_output_timeout: 15m
-        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
+        command: "echo \"cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\"\ncat /tmp/split_dtest_tests_j8_with_vnodes_final.txt\n\nsource ~/env3.6/bin/activate\nexport PATH=$JAVA_HOME/bin:$PATH\nif [ -n '' ]; then\n  export \nfi\n\njava -version\ncd ~/cassandra-dtest\nmkdir -p /tmp/dtest\n\necho \"env: $(env)\"\necho \"** done env\"\nmkdir -p /tmp/results/dtests\n# we need the \"set -o pipefail\" here so that the exit code that circleci will actually use is from pytest and not the exit code from tee\nexport SPLIT_TESTS=`cat /tmp/split_dtest_tests_j8_with_vnodes_final.txt`\nset -o pipefail && cd ~/cassandra-dtest && pytest --use-vnodes --num-tokens=32 --skip-resource-intensive-tests --log-level=\"INFO\" --junit-xml=/tmp/results/dtests/pytest_result_j8_with_vnodes.xml -s --cassandra-dir=/home/cassandra/cassandra --keep-test-dir $SPLIT_TESTS 2>&1 | tee /tmp/dtest/stdout.txt\n"
     - store_test_results:
         path: /tmp/results
     - store_artifacts:
@@ -482,7 +482,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_jvm_dtests:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -574,7 +574,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_long:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -620,7 +620,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   utests_compression:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l
@@ -712,7 +712,7 @@ jobs:
     - JDK_HOME: /usr/lib/jvm/java-8-openjdk-amd64
   j8_dtest_jars_build:
     docker:
-    - image: spod/cassandra-testing-ubuntu1810-java11-w-dependencies:20190306
+    - image: beobal/cassandra-testing-ubuntu1910-java11-w-dependencies:20201130
     resource_class: medium
     working_directory: ~/
     shell: /bin/bash -eo pipefail -l