diff --git a/Changelog.md b/Changelog.md
index bfe774e62..20c242e68 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,28 @@
+##### [v0.1.5 alpha](https://github.com/CoiniumServ/CoiniumServ/releases/tag/v0.1.5-alpha) - 05.09.2014
+
+**Payments**
+* Fixed a bug in hybrid-storage layer where blocks were not correctly set as confirmed once they were actually so.
+
+**Web**
+* Fixed a bug in embedded web-server where some users were not able to use the interface.
+* Updated web-site tempaltes which reflects newest API changes.
+
+**Storage**
+* Fixed a bug in migration-manager where if it couldn't connect to MySQL would cause program to crash & terminate.
+
+**API**
+* Improved pool API.
+ 
+**Pools**
+* Pools can now determine if connection to coin network is healthy.
+* Fixed hashrate calculation bug.
+
+**Jobs**
+* JobTracker can now clean expired jobs.
+ 
+**Configuration**
+* Moved config.json "website:stats" section to upper level and renamed as "statistics". You have to apply the change to your existing config.json file!
+
 ##### [v0.1.4 alpha](https://github.com/CoiniumServ/CoiniumServ/releases/tag/v0.1.4-alpha) - 03.09.2014
 
 **Storage**
diff --git a/README.md b/README.md
index 61e2737a7..c8ab4a1c1 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ You can send tips and furher support the project or get tips for contributing by
 
 ### Status
 
-[v0.1.4 alpha](https://github.com/CoiniumServ/CoiniumServ/releases/tag/v0.1.4-alpha) released
+[v0.1.5 alpha](https://github.com/CoiniumServ/CoiniumServ/releases/tag/v0.1.5-alpha) released
 
 ### Features
 
diff --git a/src/CoiniumServ/Persistance/Layers/Mpos/MposStorageLayer.cs b/src/CoiniumServ/Persistance/Layers/Mpos/MposStorageLayer.cs
index 4b5c906fc..55a2d0f01 100644
--- a/src/CoiniumServ/Persistance/Layers/Mpos/MposStorageLayer.cs
+++ b/src/CoiniumServ/Persistance/Layers/Mpos/MposStorageLayer.cs
@@ -56,6 +56,8 @@ public MposStorageLayer(IEnumerable<IStorageProvider> providers, PoolConfig pool
                 if (provider is IMySqlProvider)
                     _mySqlProvider = (IMySqlProvider) provider;
             }
+
+            IsEnabled = _mySqlProvider != null;
         }
 
         public void AddShare(IShare share)
@@ -151,12 +153,34 @@ public Dictionary<uint, Dictionary<string, double>> GetShares(IList<IPaymentRoun
 
         public void DeleteExpiredHashrateData(int until)
         {
-            throw new NotImplementedException();
+            // MPOS doesn't use another hashrate data structure except the shares, which are already handled by MPOS.
         }
 
         public IDictionary<string, double> GetHashrateData(int since)
         {
-            throw new NotImplementedException();
+            var hashrateData = new Dictionary<string, double>();
+
+            try
+            {
+                if (!IsEnabled)
+                    return hashrateData;
+
+                using (var connection = new MySqlConnection(_mySqlProvider.ConnectionString))
+                {
+                    var results = connection.Query(@"select username, sum(difficulty) as shares from shares where our_result='Y' group by username");
+
+                    foreach (var row in results)
+                    {
+                        hashrateData.Add(row.username, row.shares);
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                _logger.Error("An exception occured while getting share data: {0:l}", e.Message);
+            }
+
+            return hashrateData;
         }
 
         public void AddBlock(IShare share)
@@ -283,6 +307,9 @@ public bool Authenticate(IMiner miner)
         {
             try
             {
+                if (!IsEnabled)
+                    return false;
+
                 using (var connection = new MySqlConnection(_mySqlProvider.ConnectionString))
                 {
                     // query the username against mpos pool_worker table.
@@ -306,6 +333,9 @@ public void UpdateDifficulty(IStratumMiner miner)
         {
             try
             {
+                if (!IsEnabled)
+                    return;
+
                 using (var connection = new MySqlConnection(_mySqlProvider.ConnectionString))
                 {
                     connection.Execute(
diff --git a/src/CoiniumServ/Utils/Versions/VersionInfo.cs b/src/CoiniumServ/Utils/Versions/VersionInfo.cs
index d7a9ce419..9c00e625a 100644
--- a/src/CoiniumServ/Utils/Versions/VersionInfo.cs
+++ b/src/CoiniumServ/Utils/Versions/VersionInfo.cs
@@ -41,7 +41,7 @@ public static class Assembly
             /// <summary>
             /// Main assemby version.
             /// </summary>
-            public const string Version = "0.1.4.*";
+            public const string Version = "0.1.5.*";
         }
     }
 }