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diff --git a/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Linq.md b/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Linq.md
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+++ b/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Linq.md
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+# System.Linq
+
+``` diff
+ namespace System.Linq {
+     [NullableAttribute((byte)0)]
+     [NullableContextAttribute((byte)1)]
+     public static class Enumerable {
++        public static IOrderedEnumerable<T> Order<T>(this IEnumerable<T> source);
++        public static IOrderedEnumerable<T> Order<T>(this IEnumerable<T> source, [NullableAttribute(new byte[]{ (byte)2, (byte)1})] IComparer<T>? comparer);
++        public static IOrderedEnumerable<T> OrderDescending<T>(this IEnumerable<T> source);
++        public static IOrderedEnumerable<T> OrderDescending<T>(this IEnumerable<T> source, [NullableAttribute(new byte[]{ (byte)2, (byte)1})] IComparer<T>? comparer);
+     }
+     [NullableAttribute((byte)0)]
+     [NullableContextAttribute((byte)1)]
+     public static class Queryable {
++        public static IOrderedQueryable<T> Order<T>(this IQueryable<T> source);
++        public static IOrderedQueryable<T> Order<T>(this IQueryable<T> source, IComparer<T> comparer);
++        public static IOrderedQueryable<T> OrderDescending<T>(this IQueryable<T> source);
++        public static IOrderedQueryable<T> OrderDescending<T>(this IQueryable<T> source, IComparer<T> comparer);
+     }
+ }
+```
+