diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index c678535fd4..b77ed0d382 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -1944,11 +1944,11 @@ axes:
           REQUIRE_API_VERSION: "1"
           # MONGODB_API_VERSION is the apiVersion to use in the test suite.
           MONGODB_API_VERSION: "1"
-      # Test against a cluster with acceptAPIVersion2 but without
+      # Test against a cluster with acceptApiVersion2 but without
       # requireApiVersion, and don't automatically add apiVersion to
       # clients created in the test suite.
-      - id: "acceptAPIVersion2"
-        display_name: "acceptAPIVersion2"
+      - id: "acceptApiVersion2"
+        display_name: "acceptApiVersion2"
         tags: [ "versionedApi_tag" ]
         variables:
           ORCHESTRATION_FILE: "versioned-api-testing.json"
@@ -2434,7 +2434,7 @@ buildvariants:
 
 - matrix_name: "versioned-api-tests"
   matrix_spec:
-    platform: ubuntu-16.04
+    platform: ubuntu-18.04
     python-version: ["3.6", "3.9"]
     auth: "auth"
     versionedApi: "*"
diff --git a/test/versioned-api/runcommand-helper-no-api-version-declared.json b/test/versioned-api/runcommand-helper-no-api-version-declared.json
index 65c24ef460..e901887e4c 100644
--- a/test/versioned-api/runcommand-helper-no-api-version-declared.json
+++ b/test/versioned-api/runcommand-helper-no-api-version-declared.json
@@ -3,7 +3,7 @@
   "schemaVersion": "1.1",
   "runOnRequirements": [
     {
-      "minServerVersion": "4.7",
+      "minServerVersion": "4.9",
       "serverParameters": {
         "requireApiVersion": false
       }
diff --git a/test/versioned-api/test-commands-deprecation-errors.json b/test/versioned-api/test-commands-deprecation-errors.json
index bdbc3f92ce..0668df830a 100644
--- a/test/versioned-api/test-commands-deprecation-errors.json
+++ b/test/versioned-api/test-commands-deprecation-errors.json
@@ -3,10 +3,10 @@
   "schemaVersion": "1.1",
   "runOnRequirements": [
     {
-      "minServerVersion": "4.7",
+      "minServerVersion": "4.9",
       "serverParameters": {
         "enableTestCommands": true,
-        "acceptAPIVersion2": true,
+        "acceptApiVersion2": true,
         "requireApiVersion": false
       }
     }
diff --git a/test/versioned-api/test-commands-strict-mode.json b/test/versioned-api/test-commands-strict-mode.json
index ebace44319..1705ba7bff 100644
--- a/test/versioned-api/test-commands-strict-mode.json
+++ b/test/versioned-api/test-commands-strict-mode.json
@@ -3,7 +3,7 @@
   "schemaVersion": "1.1",
   "runOnRequirements": [
     {
-      "minServerVersion": "4.7",
+      "minServerVersion": "4.9",
       "serverParameters": {
         "enableTestCommands": true
       }
diff --git a/test/versioned-api/transaction-handling.json b/test/versioned-api/transaction-handling.json
index 64e9706b5e..a740405d3a 100644
--- a/test/versioned-api/transaction-handling.json
+++ b/test/versioned-api/transaction-handling.json
@@ -3,7 +3,7 @@
   "schemaVersion": "1.1",
   "runOnRequirements": [
     {
-      "minServerVersion": "4.7",
+      "minServerVersion": "4.9",
       "topologies": [
         "replicaset",
         "sharded-replicaset"
@@ -382,7 +382,138 @@
           ]
         }
       ]
+    },
+    {
+      "description": "abortTransaction does not include an API version",
+      "runOnRequirements": [
+        {
+          "topologies": [
+            "replicaset",
+            "sharded-replicaset"
+          ]
+        }
+      ],
+      "operations": [
+        {
+          "name": "startTransaction",
+          "object": "session"
+        },
+        {
+          "name": "insertOne",
+          "object": "collection",
+          "arguments": {
+            "session": "session",
+            "document": {
+              "_id": 6,
+              "x": 66
+            }
+          },
+          "expectResult": {
+            "$$unsetOrMatches": {
+              "insertedId": {
+                "$$unsetOrMatches": 6
+              }
+            }
+          }
+        },
+        {
+          "name": "insertOne",
+          "object": "collection",
+          "arguments": {
+            "session": "session",
+            "document": {
+              "_id": 7,
+              "x": 77
+            }
+          },
+          "expectResult": {
+            "$$unsetOrMatches": {
+              "insertedId": {
+                "$$unsetOrMatches": 7
+              }
+            }
+          }
+        },
+        {
+          "name": "abortTransaction",
+          "object": "session"
+        }
+      ],
+      "expectEvents": [
+        {
+          "client": "client",
+          "events": [
+            {
+              "commandStartedEvent": {
+                "command": {
+                  "insert": "test",
+                  "documents": [
+                    {
+                      "_id": 6,
+                      "x": 66
+                    }
+                  ],
+                  "lsid": {
+                    "$$sessionLsid": "session"
+                  },
+                  "startTransaction": true,
+                  "apiVersion": "1",
+                  "apiStrict": {
+                    "$$unsetOrMatches": false
+                  },
+                  "apiDeprecationErrors": {
+                    "$$unsetOrMatches": false
+                  }
+                }
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "command": {
+                  "insert": "test",
+                  "documents": [
+                    {
+                      "_id": 7,
+                      "x": 77
+                    }
+                  ],
+                  "lsid": {
+                    "$$sessionLsid": "session"
+                  },
+                  "apiVersion": {
+                    "$$exists": false
+                  },
+                  "apiStrict": {
+                    "$$exists": false
+                  },
+                  "apiDeprecationErrors": {
+                    "$$exists": false
+                  }
+                }
+              }
+            },
+            {
+              "commandStartedEvent": {
+                "command": {
+                  "abortTransaction": 1,
+                  "lsid": {
+                    "$$sessionLsid": "session"
+                  },
+                  "apiVersion": {
+                    "$$exists": false
+                  },
+                  "apiStrict": {
+                    "$$exists": false
+                  },
+                  "apiDeprecationErrors": {
+                    "$$exists": false
+                  }
+                }
+              }
+            }
+          ]
+        }
+      ]
     }
   ]
 }
-