1 files changed, 53 insertions, 0 deletions
diff --git a/release-notes/7.0/preview/api-diff/preview6/Microsoft.NETCore.App/7.0-preview6_System.Formats.Tar.md b/release-notes/7.0/preview/api-diff/preview6/Microsoft.NETCore.App/7.0-preview6_System.Formats.Tar.md
new file mode 100644
index 00000000..6e1e608d
--- /dev/null
+++ b/release-notes/7.0/preview/api-diff/preview6/Microsoft.NETCore.App/7.0-preview6_System.Formats.Tar.md
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+# System.Formats.Tar
+
+``` diff
+ namespace System.Formats.Tar {
+     public sealed class GnuTarEntry : PosixTarEntry {
++        public GnuTarEntry(TarEntry other);
+     }
++    public sealed class PaxGlobalExtendedAttributesTarEntry : PosixTarEntry {
++        public PaxGlobalExtendedAttributesTarEntry(IEnumerable<KeyValuePair<string, string>> globalExtendedAttributes);
++        public IReadOnlyDictionary<string, string> GlobalExtendedAttributes { get; }
++    }
+     public sealed class PaxTarEntry : PosixTarEntry {
++        public PaxTarEntry(TarEntry other);
+     }
+     public abstract class TarEntry {
++        public TarEntryFormat Format { get; }
+     }
++    public enum TarEntryFormat {
++        Gnu = 4,
++        Pax = 3,
++        Unknown = 0,
++        Ustar = 2,
++        V7 = 1,
++    }
+-    public enum TarFormat {
+-        Gnu = 4,
+-        Pax = 3,
+-        Unknown = 0,
+-        Ustar = 2,
+-        V7 = 1,
+-    }
+     public sealed class TarReader : IDisposable {
+-        public TarFormat Format { get; }
+-        public IReadOnlyDictionary<string, string>? GlobalExtendedAttributes { get; }
+     }
+     public sealed class TarWriter : IDisposable {
++        public TarWriter(Stream archiveStream);
++        public TarWriter(Stream archiveStream, bool leaveOpen = false);
+-        public TarWriter(Stream archiveStream, IEnumerable<KeyValuePair<string, string>>? globalExtendedAttributes = null, bool leaveOpen = false);
++        public TarWriter(Stream archiveStream, TarEntryFormat format = TarEntryFormat.Pax, bool leaveOpen = false);
+-        public TarWriter(Stream archiveStream, TarFormat archiveFormat, bool leaveOpen = false);
+-        public TarFormat Format { get; }
++        public TarEntryFormat Format { get; }
+     }
+     public sealed class UstarTarEntry : PosixTarEntry {
++        public UstarTarEntry(TarEntry other);
+     }
+     public sealed class V7TarEntry : TarEntry {
++        public V7TarEntry(TarEntry other);
+     }
+ }
+```
+