Don't set BCD to false if BCD has version number greater than our data

unittest/unit/bcd.test.js

@@ -76,6 +76,9 @@ export default {
     },
     RemovedInterface: {
       __compat: {support: {chrome: {version_added: null}}}
+    },
+    SuperNewInterface: {
+      __compat: {support: {chrome: {version_added: '100'}}}
     }
   },
   browsers: {

unittest/unit/find-missing-features.js

@@ -40,6 +40,7 @@ describe('find-missing-features', () => {
         'api.ExperimentalInterface',
         'api.NullAPI',
         'api.RemovedInterface',
+        'api.SuperNewInterface',
         'css.properties.font-family',
         'css.properties.font-face',
         'javascript.builtins.Array',
@@ -64,6 +65,7 @@ describe('find-missing-features', () => {
         'api.TryingOutInterface',
         'api.NullAPI',
         'api.RemovedInterface',
+        'api.SuperNewInterface',
         'css.properties.font-family',
         'css.properties.font-face',
         'javascript.builtins.Array',
@@ -91,10 +93,11 @@ describe('find-missing-features', () => {
           'api.ExperimentalInterface',
           'api.NullAPI',
           'api.RemovedInterface',
+          'api.SuperNewInterface',
           'css.properties.font-face',
           'javascript.builtins.Date'
         ],
-        total: 17
+        total: 18
       });
     });
 
@@ -118,9 +121,10 @@ describe('find-missing-features', () => {
           'api.DummyAPI.dummy',
           'api.ExperimentalInterface',
           'api.NullAPI',
-          'api.RemovedInterface'
+          'api.RemovedInterface',
+          'api.SuperNewInterface'
         ],
-        total: 13
+        total: 14
       });
     });
 
@@ -138,10 +142,11 @@ describe('find-missing-features', () => {
           'api.ExperimentalInterface',
           'api.NullAPI',
           'api.RemovedInterface',
+          'api.SuperNewInterface',
           'css.properties.font-face',
           'javascript.builtins.Date'
         ],
-        total: 17
+        total: 18
       });
 
       assert.isTrue(

unittest/unit/update-bcd.js

@@ -83,6 +83,11 @@ const reports = [
           info: {exposure: 'Window'},
           result: true
         },
+        {
+          name: 'api.SuperNewInterface',
+          info: {exposure: 'Window'},
+          result: false
+        },
         {
           name: 'css.properties.font-family',
           info: {exposure: 'Window'},
@@ -158,6 +163,11 @@ const reports = [
           info: {exposure: 'Window'},
           result: false
         },
+        {
+          name: 'api.SuperNewInterface',
+          info: {exposure: 'Window'},
+          result: false
+        },
         {
           name: 'css.properties.font-family',
           info: {exposure: 'Window'},
@@ -227,6 +237,11 @@ const reports = [
           info: {exposure: 'Window'},
           result: true
         },
+        {
+          name: 'api.SuperNewInterface',
+          info: {exposure: 'Window'},
+          result: false
+        },
         {
           name: 'css.properties.font-family',
           info: {exposure: 'Window'},
@@ -331,6 +346,7 @@ describe('BCD updater', () => {
           ['api.ExperimentalInterface', true],
           ['api.NullAPI', null],
           ['api.RemovedInterface', true],
+          ['api.SuperNewInterface', false],
           ['css.properties.font-family', true],
           ['css.properties.font-face', true]
         ])
@@ -351,6 +367,7 @@ describe('BCD updater', () => {
           ['api.NewInterfaceNotInBCD', false],
           ['api.NullAPI', null],
           ['api.RemovedInterface', false],
+          ['api.SuperNewInterface', false],
           ['css.properties.font-family', true],
           ['css.properties.font-face', true]
         ])
@@ -521,6 +538,20 @@ describe('BCD updater', () => {
               ]
             ])
           ],
+          [
+            'api.SuperNewInterface',
+            new Map([
+              [
+                'chrome',
+                new Map([
+                  ['82', null],
+                  ['83', false],
+                  ['84', false],
+                  ['85', false]
+                ])
+              ]
+            ])
+          ],
           [
             'css.properties.font-family',
             new Map([
@@ -596,6 +627,9 @@ describe('BCD updater', () => {
           {version_added: '85'}
         ]
       },
+      'api.SuperNewInterface': {
+        chrome: [{version_added: false}]
+      },
       'css.properties.font-family': {chrome: [{version_added: '84'}]},
       'css.properties.font-face': {chrome: []}
     };
@@ -739,6 +773,9 @@ describe('BCD updater', () => {
             //   {version_added: '≤83', version_removed: '84'}
             // ]}}
             __compat: {support: {chrome: {version_added: null}}}
+          },
+          SuperNewInterface: {
+            __compat: {support: {chrome: {version_added: '100'}}}
           }
         },
         browsers: {

update-bcd.js

@@ -316,7 +316,34 @@ const update = (bcd, supportMatrix, filter) => {
         continue;
       }
 
+      let dataIsOlder = false;
       if (
+        inferredStatement.version_added === false &&
+        typeof simpleStatement.version_added === 'string'
+      ) {
+        // Make sure not to update BCD if it is set to a version newer than we have in our data
+
+        for (const [version, result] of Array.from(
+          versionMap.entries()
+        ).reverse()) {
+          if (
+            result !== null &&
+            compareVersions.compare(
+              version,
+              simpleStatement.version_added.replace('≤', ''),
+              '<='
+            )
+          ) {
+            // A version we have data for is the same or newer than the version in BCD
+            dataIsOlder = true;
+            break;
+          }
+        }
+      }
+
+      if (dataIsOlder) {
+        continue;
+      } else if (
         typeof simpleStatement.version_added === 'string' &&
         typeof inferredStatement.version_added === 'string' &&
         inferredStatement.version_added.includes('≤')