Update the documentation on required browsers (#3419)

Fixes #3410.
mdn · Feb 8, 2019 · 41f7c05 · 41f7c05
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commit 41f7c05
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/schemas/compat-data-schema.md b/schemas/compat-data-schema.md
@@ -163,7 +163,7 @@ The currently accepted browser identifiers should be declared in alphabetical or
 * `uc_chinese_android`, UC Browser (Chinese Android version)
 * `webview_android`, Webview, the former stock browser on Android
 
-No browser identifier is mandatory.
+Desktop browser identifiers are mandatory, with the `version_added` property set to `null` if support is unknown.
 
 #### The `support_statement` object
 The `support_statement` object describes the support provided by a single browser type for the given subfeature.