diff --git a/README.md b/README.md
index de10d605..4cf718aa 100644
--- a/README.md
+++ b/README.md
@@ -522,12 +522,12 @@ as any additional detail or context that is available. *This is deprecated.*
 
 Passing a `resultVersion` of `2` corresponds to a detailed format where each error
 includes information about the line number, rule names, description, as well as any
-additional detail or context that is available. *This is the default.*
+additional detail or context that is available. *This is deprecated.*
 
 Passing a `resultVersion` of `3` corresponds to the detailed version `2` format
 with additional information about how to fix automatically-fixable errors. In this
 mode, all errors that occur on each line are reported (other versions report only
-the first error for each rule).
+the first error for each rule). *This is the default.*
 
 ##### options.markdownItPlugins
 
diff --git a/demo/default.js b/demo/default.js
index ebe5e78a..99a54d8c 100644
--- a/demo/default.js
+++ b/demo/default.js
@@ -52,8 +52,7 @@
       "config": {
         "MD013": false
       },
-      "handleRuleFailures": true,
-      "resultVersion": 3
+      "handleRuleFailures": true
     };
     allLintErrors = window.markdownlint.sync(options).content;
     violations.innerHTML = allLintErrors.map(function mapResult(result) {
diff --git a/demo/markdownlint-browser.js b/demo/markdownlint-browser.js
index 6eba21c1..37f5e61e 100644
--- a/demo/markdownlint-browser.js
+++ b/demo/markdownlint-browser.js
@@ -1808,7 +1808,7 @@ function lintInput(options, synchronous, callback) {
     var handleRuleFailures = !!options.handleRuleFailures;
     var noInlineConfig = !!options.noInlineConfig;
     var resultVersion = (options.resultVersion === undefined) ?
-        2 : options.resultVersion;
+        3 : options.resultVersion;
     var md = markdownIt({ "html": true });
     var markdownItPlugins = options.markdownItPlugins || [];
     markdownItPlugins.forEach(function forPlugin(plugin) {
diff --git a/example/typescript/type-check.ts b/example/typescript/type-check.ts
index fdc73a2d..e30d3913 100644
--- a/example/typescript/type-check.ts
+++ b/example/typescript/type-check.ts
@@ -92,7 +92,6 @@ options = {
   "frontMatter": /---/,
   "handleRuleFailures": false,
   "noInlineConfig": false,
-  "resultVersion": 3,
   "markdownItPlugins": [ [ require("markdown-it-sub") ] ]
 };
 
diff --git a/lib/markdownlint.js b/lib/markdownlint.js
index d80fbfec..8da66cd4 100644
--- a/lib/markdownlint.js
+++ b/lib/markdownlint.js
@@ -773,7 +773,7 @@ function lintInput(options, synchronous, callback) {
   const handleRuleFailures = !!options.handleRuleFailures;
   const noInlineConfig = !!options.noInlineConfig;
   const resultVersion = (options.resultVersion === undefined) ?
-    2 : options.resultVersion;
+    3 : options.resultVersion;
   const md = markdownIt({ "html": true });
   const markdownItPlugins = options.markdownItPlugins || [];
   markdownItPlugins.forEach(function forPlugin(plugin) {
diff --git a/test/markdownlint-test-custom-rules.js b/test/markdownlint-test-custom-rules.js
index cc84aa87..9d5eae08 100644
--- a/test/markdownlint-test-custom-rules.js
+++ b/test/markdownlint-test-custom-rules.js
@@ -901,7 +901,8 @@ test.cb("customRulesOnErrorLazy", (t) => {
           "ruleInformation": null,
           "errorDetail": null,
           "errorContext": null,
-          "errorRange": [ 1, 1 ]
+          "errorRange": [ 1, 1 ],
+          "fixInfo": null
         }
       ]
     };
@@ -943,8 +944,7 @@ test.cb("customRulesOnErrorModified", (t) => {
     ],
     "strings": {
       "string": "# Heading\n"
-    },
-    "resultVersion": 3
+    }
   };
   markdownlint(options, function callback(err, actualResult) {
     t.falsy(err);
@@ -1002,7 +1002,8 @@ test.cb("customRulesOnErrorInvalidHandled", (t) => {
           "errorDetail": "This rule threw an exception: " +
             "Property 'lineNumber' of onError parameter is incorrect.",
           "errorContext": null,
-          "errorRange": null
+          "errorRange": null,
+          "fixInfo": null
         }
       ]
     };
@@ -1042,7 +1043,8 @@ test("customRulesOnErrorInvalidHandledSync", (t) => {
         "errorDetail": "This rule threw an exception: " +
           "Property 'lineNumber' of onError parameter is incorrect.",
         "errorContext": null,
-        "errorRange": null
+        "errorRange": null,
+        "fixInfo": null
       }
     ]
   };
@@ -1125,7 +1127,8 @@ test.cb("customRulesLintJavaScript", (t) => {
           "ruleInformation": null,
           "errorDetail": "Unexpected var, use let or const instead.",
           "errorContext": "var x = 0;",
-          "errorRange": null
+          "errorRange": null,
+          "fixInfo": null
         },
         {
           "lineNumber": 12,
@@ -1134,7 +1137,8 @@ test.cb("customRulesLintJavaScript", (t) => {
           "ruleInformation": null,
           "errorDetail": "Unexpected console statement.",
           "errorContext": "console.log(x);",
-          "errorRange": null
+          "errorRange": null,
+          "fixInfo": null
         }
       ]
     };
@@ -1160,7 +1164,8 @@ test.cb("customRulesValidateJson", (t) => {
           "ruleInformation": null,
           "errorDetail": "Unexpected end of JSON input",
           "errorContext": null,
-          "errorRange": null
+          "errorRange": null,
+          "fixInfo": null
         }
       ]
     };
@@ -1312,7 +1317,11 @@ test("customRulesAsyncReadFiles", (t) => {
         "ruleInformation": `${homepage}/blob/v${version}/doc/Rules.md#md047`,
         "errorDetail": null,
         "errorContext": null,
-        "errorRange": [ 9, 1 ]
+        "errorRange": [ 9, 1 ],
+        "fixInfo": {
+          "editColumn": 10,
+          "insertText": "\n"
+        }
       },
       {
         "lineNumber": 1,
@@ -1321,7 +1330,8 @@ test("customRulesAsyncReadFiles", (t) => {
         "ruleInformation": "https://example.com/asyncRule1",
         "errorDetail": "detail1",
         "errorContext": "context1",
-        "errorRange": [ 2, 3 ]
+        "errorRange": [ 2, 3 ],
+        "fixInfo": null
       },
       {
         "lineNumber": 1,
@@ -1330,7 +1340,8 @@ test("customRulesAsyncReadFiles", (t) => {
         "ruleInformation": null,
         "errorDetail": "detail2",
         "errorContext": "context2",
-        "errorRange": null
+        "errorRange": null,
+        "fixInfo": null
       }
     ]
   };
@@ -1377,7 +1388,8 @@ test("customRulesAsyncIgnoresSyncReturn", (t) => {
         "ruleInformation": "https://example.com/asyncRule",
         "errorDetail": null,
         "errorContext": null,
-        "errorRange": null
+        "errorRange": null,
+        "fixInfo": null
       },
       {
         "lineNumber": 1,
@@ -1386,7 +1398,11 @@ test("customRulesAsyncIgnoresSyncReturn", (t) => {
         "ruleInformation": `${homepage}/blob/v${version}/doc/Rules.md#md047`,
         "errorDetail": null,
         "errorContext": null,
-        "errorRange": [ 9, 1 ]
+        "errorRange": [ 9, 1 ],
+        "fixInfo": {
+          "editColumn": 10,
+          "insertText": "\n"
+        }
       }
     ]
   };
@@ -1440,7 +1456,8 @@ const stringScenarios = [
         "ruleInformation": null,
         "errorDetail": `This rule threw an exception: ${errorMessage}`,
         "errorContext": null,
-        "errorRange": null
+        "errorRange": null,
+        "fixInfo": null
       }
     ]
   };
@@ -1604,7 +1621,8 @@ const stringScenarios = [
               "ruleInformation": null,
               "errorDetail": `This rule threw an exception: ${errorMessage}`,
               "errorContext": null,
-              "errorRange": null
+              "errorRange": null,
+              "fixInfo": null
             }
           ]
         };
diff --git a/test/markdownlint-test-repos.js b/test/markdownlint-test-repos.js
index e1e01208..cd213ab9 100644
--- a/test/markdownlint-test-repos.js
+++ b/test/markdownlint-test-repos.js
@@ -39,8 +39,7 @@ async function lintTestRepo(t, globPatterns, configPath, ignoreRes) {
     console.log(`${t.title}: Linting ${files.length} files...`);
     return markdownlintPromise({
       files,
-      config,
-      "resultVersion": 3
+      config
     // }).then((results) => {
     //   // Cross-check MD051/link-fragments results with markdown-link-check
     //   const resultFiles = [];
diff --git a/test/markdownlint-test-result-object.js b/test/markdownlint-test-result-object.js
index 026b6bdd..d28e5d00 100644
--- a/test/markdownlint-test-result-object.js
+++ b/test/markdownlint-test-result-object.js
@@ -255,7 +255,8 @@ test.cb("resultFormattingV2", (t) => {
     "config": {
       "MD002": true,
       "MD041": false
-    }
+    },
+    "resultVersion": 2
   };
   markdownlint(options, function callback(err, actualResult) {
     t.falsy(err);
diff --git a/test/markdownlint-test-scenarios.js b/test/markdownlint-test-scenarios.js
index 64a71754..b6a38280 100644
--- a/test/markdownlint-test-scenarios.js
+++ b/test/markdownlint-test-scenarios.js
@@ -44,8 +44,7 @@ function createTestForFile(file) {
         function lintWithConfig() {
           return markdownlintPromise({
             "files": [ file ],
-            config,
-            "resultVersion": 3
+            config
           });
         })
       .then(
@@ -54,8 +53,7 @@ function createTestForFile(file) {
             Promise.all([
               markdownlintPromise({
                 "files": [ file ],
-                config,
-                "resultVersion": 3
+                config
               }),
               fs.promises.readFile(file, "utf8"),
               fs.promises.readFile(fixedFile, "utf8")
@@ -148,8 +146,7 @@ function createTestForFile(file) {
                   "strings": {
                     "input": corrections
                   },
-                  config,
-                  "resultVersion": 3
+                  config
                 });
               })
             .then(