diff --git a/api/XMLHttpRequest.json b/api/XMLHttpRequest.json
index 69b56d02e74632..c86bf0ca389b21 100644
--- a/api/XMLHttpRequest.json
+++ b/api/XMLHttpRequest.json
@@ -1489,10 +1489,10 @@
                 "version_added": true
               },
               "safari": {
-                "version_added": "7"
+                "version_added": "6"
               },
               "safari_ios": {
-                "version_added": "7"
+                "version_added": "6"
               },
               "samsunginternet_android": {
                 "version_added": true
@@ -1520,7 +1520,7 @@
                 "version_added": true
               },
               "edge": {
-                "version_added": "≤79"
+                "version_added": "12"
               },
               "firefox": {
                 "version_added": "20"
@@ -1529,7 +1529,7 @@
                 "version_added": "20"
               },
               "ie": {
-                "version_added": null
+                "version_added": "10"
               },
               "opera": {
                 "version_added": true
@@ -1676,22 +1676,36 @@
                 "version_added": "44"
               },
               "ie": {
-                "version_added": null
+                "version_added": false
               },
               "opera": {
-                "version_added": "12"
+                "version_added": "46"
               },
               "opera_android": {
-                "version_added": true
-              },
-              "safari": {
-                "version_added": false,
-                "notes": "See <a href='https://webkit.org/b/227477'>bug 227477</a>."
-              },
-              "safari_ios": {
-                "version_added": false,
-                "notes": "See <a href='https://webkit.org/b/227477'>bug 227477</a>."
+                "version_added": "43"
               },
+              "safari": [
+                {
+                  "version_added": "15"
+                },
+                {
+                  "version_added": "10.1",
+                  "version_removed": "15",
+                  "partial_implementation": true,
+                  "notes": "Doesn't send the correct <code>Content-Type</code> header by default. See <a href='https://webkit.org/b/227477'>bug 227477</a>."
+                }
+              ],
+              "safari_ios": [
+                {
+                  "version_added": "15"
+                },
+                {
+                  "version_added": "10.3",
+                  "version_removed": "15",
+                  "partial_implementation": true,
+                  "notes": "Doesn't send the correct <code>Content-Type</code> header by default. See <a href='https://webkit.org/b/227477'>bug 227477</a>."
+                }
+              ],
               "samsunginternet_android": {
                 "version_added": "7.0"
               },