diff --git a/src/Tizen.System.Session/Session/Session.cs b/src/Tizen.System.Session/Session/Session.cs
index cf09d03628b..ead4424b190 100644
--- a/src/Tizen.System.Session/Session/Session.cs
+++ b/src/Tizen.System.Session/Session/Session.cs
@@ -28,7 +28,7 @@ namespace Tizen.System
     /// <summary>
     /// Provides methods to manage subsession users. Allows to register for events triggered by operations on subsession users.
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public sealed class Session
     {
         /// <summary>
@@ -40,13 +40,13 @@ public sealed class Session
         /// <summary>
         /// Maximum length of any given user ID.
         /// </summary>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public const int MaxUserLength = 20;
 
         /// <summary>
         /// Special subsession ID, which is always present and does not represent any user.
         /// </summary>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public const string EmptyUser = "";
 
         private static ConcurrentDictionary<int, Session> s_sessionInstances = new ConcurrentDictionary<int, Session>();
@@ -77,7 +77,7 @@ private Session(int sessionUID)
         /// <remarks>
         /// To ensure thread safety, explicit creation of Session object is not allowed.
         /// </remarks>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public static Session GetInstance(int sessionUID)
         {
             if (!s_sessionInstances.ContainsKey(sessionUID))
@@ -88,7 +88,7 @@ public static Session GetInstance(int sessionUID)
         /// <summary>
         /// Gets session UID of this session object.
         /// </summary>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public int SessionUID { get; private set; }
 
         /// <summary>
@@ -107,7 +107,8 @@ public static Session GetInstance(int sessionUID)
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <returns>A read-only list of all subsession IDs for this session.</returns>
+        /// <since_tizen>10.1</since_tizen>
         public IReadOnlyList<string> GetUsers()
         {
 
@@ -137,7 +138,8 @@ public IReadOnlyList<string> GetUsers()
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <returns>The currently active subsession user ID, or "" (EmptyUser) when no subsession is enabled.</returns>
+        /// <since_tizen>10.1</since_tizen>
         public string GetCurrentUser()
         {
             StringBuilder user = new StringBuilder(MaxUserLength);
@@ -286,13 +288,13 @@ public Task SubsessionSwitchUserAsync(string userName)
         /// <param name="subsessionEventArgs">Event argument of the event (obtained from said event)</param>
         /// <remarks>
         /// This method is assumed to be called from an event handler. You can only mark an event as completed
-        /// if you registered for in in the same process.
+        /// if you registered for it in the same process.
         /// </remarks>
         /// <exception cref="ArgumentException">Session UID of this object is invalid</exception>
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public void SubsessionEventMarkAsDone(SubsessionEventArgs subsessionEventArgs)
         {
             SessionError ret = Interop.Session.SubsessionEventWaitDone(subsessionEventArgs.SessionInfo);
@@ -318,7 +320,7 @@ private void OnAddUserWait(SubsessionEventInfoNative infoNative, IntPtr data)
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public event EventHandler<AddUserEventArgs> AddUserWait
         {
             add
@@ -360,7 +362,7 @@ private void OnRemoveUserWait(SubsessionEventInfoNative infoNative, IntPtr data)
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public event EventHandler<RemoveUserEventArgs> RemoveUserWait
         {
             add
@@ -402,7 +404,7 @@ private void OnSwitchUserWait(SubsessionEventInfoNative infoNative, IntPtr data)
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public event EventHandler<SwitchUserWaitEventArgs> SwitchUserWait
         {
             add
@@ -444,7 +446,7 @@ private void OnSwitchUserCompletion(SubsessionEventInfoNative infoNative, IntPtr
         /// <exception cref="IOException">Internal error</exception>
         /// <exception cref="UnauthorizedAccessException">Not permitted</exception>
         /// <exception cref="NotSupportedException">Not supported</exception>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public event EventHandler<SwitchUserCompletionEventArgs> SwitchUserCompleted
         {
             add
diff --git a/src/Tizen.System.Session/Session/SessionEventArgs.cs b/src/Tizen.System.Session/Session/SessionEventArgs.cs
index 57333b78991..291f60f8c58 100644
--- a/src/Tizen.System.Session/Session/SessionEventArgs.cs
+++ b/src/Tizen.System.Session/Session/SessionEventArgs.cs
@@ -28,13 +28,13 @@ namespace Tizen.System
     /// You can check the event type that was invoked by checking a type of event arguments
     /// during runtime - they all derive from this base class.
     /// </remarks>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public abstract class SubsessionEventArgs : EventArgs
     {
         /// <summary>
         /// Session UID of the session invoking the event
         /// </summary>
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// <since_tizen>10.1</since_tizen>
         public int SessionUID { get; internal set; }
 
         internal SubsessionEventInfoNative SessionInfo { get; set; }
@@ -50,13 +50,13 @@ internal SubsessionEventArgs(SubsessionEventInfoNative eventInfo)
     /// <summary>
     /// An event argument type for AddUserWait event type
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public class AddUserEventArgs : SubsessionEventArgs
     {
         /// <summary>
         /// Added subsession user ID
-        /// </summary> 
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// </summary>
+        /// <since_tizen>10.1</since_tizen>
         public string UserName { get; internal set; }
 
         internal AddUserEventArgs(SubsessionEventInfoNative eventInfo)
@@ -75,13 +75,13 @@ internal AddUserEventArgs(SubsessionEventInfoNative eventInfo)
     /// <summary>
     /// An event argument type for RemoveUserWait event type
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public class RemoveUserEventArgs : SubsessionEventArgs
     {
         /// <summary>
         /// Removed subsession user ID
-        /// </summary> 
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// </summary>
+        /// <since_tizen>10.1</since_tizen>
         public string UserName { get; internal set; }
 
         internal RemoveUserEventArgs(SubsessionEventInfoNative eventInfo)
@@ -99,25 +99,25 @@ internal RemoveUserEventArgs(SubsessionEventInfoNative eventInfo)
     /// <summary>
     /// A generic base class for Switch event types
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public abstract class SwitchUserEventArgs : SubsessionEventArgs
     {
         /// <summary>
         /// ID of this switch operation
-        /// </summary> 
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// </summary>
+        /// <since_tizen>10.1</since_tizen>
         public long SwitchID { get; internal set; }
 
         /// <summary>
         /// Active subsession user ID before this switch operation
-        /// </summary> 
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// </summary>
+        /// <since_tizen>10.1</since_tizen>
         public string UserNamePrev { get; internal set; }
 
         /// <summary>
         /// Active subsession ID after this switch operation
-        /// </summary> 
-        [EditorBrowsable(EditorBrowsableState.Never)]
+        /// </summary>
+        /// <since_tizen>10.1</since_tizen>
         public string UserNameNext { get; internal set; }
 
         internal SwitchUserEventArgs(SubsessionEventInfoNative eventInfo)
@@ -141,7 +141,7 @@ internal SwitchUserEventArgs(SubsessionEventInfoNative eventInfo)
     /// <summary>
     /// An event argument type for SwitchUserWait event type
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public class SwitchUserWaitEventArgs : SwitchUserEventArgs
     {
         internal SwitchUserWaitEventArgs(SubsessionEventInfoNative eventInfo) : base(eventInfo) { }
@@ -150,7 +150,7 @@ internal SwitchUserWaitEventArgs(SubsessionEventInfoNative eventInfo) : base(eve
     /// <summary>
     /// An event argument type for SwitchUserCompleted event type
     /// </summary>
-    [EditorBrowsable(EditorBrowsableState.Never)]
+    /// <since_tizen>10.1</since_tizen>
     public class SwitchUserCompletionEventArgs : SwitchUserEventArgs
     {
         internal SwitchUserCompletionEventArgs(SubsessionEventInfoNative eventInfo) : base(eventInfo) { }