1 files changed, 17 insertions, 0 deletions
diff --git a/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Text.RegularExpressions.md b/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Text.RegularExpressions.md
new file mode 100644
index 00000000..97ac1785
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+++ b/release-notes/7.0/preview/api-diff/preview7/Microsoft.NETCore.App/7.0-preview7_System.Text.RegularExpressions.md
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+# System.Text.RegularExpressions
+
+``` diff
+ namespace System.Text.RegularExpressions {
+     [NullableAttribute((byte)0)]
+     [NullableContextAttribute((byte)1)]
+     public class Regex : ISerializable {
++        [NullableContextAttribute((byte)0)]
++        public int Count(ReadOnlySpan<char> input, int startat);
++        [NullableContextAttribute((byte)0)]
++        public Regex.ValueMatchEnumerator EnumerateMatches(ReadOnlySpan<char> input, int startat);
++        [NullableContextAttribute((byte)0)]
++        public bool IsMatch(ReadOnlySpan<char> input, int startat);
+     }
+ }
+```
+