diff --git a/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md b/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
index 26b3ee6affbf..a4a3368fd50a 100644
--- a/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## 12.5.0-preview.1 (Unreleased)
+
+
 ## 12.4.3 (2020-06)
 - Fixed bug where copy from URL did not handle non-ASCII characters correctly
 - Fixed bug where download could hang indefinietly on .NET Framework
diff --git a/sdk/storage/Azure.Storage.Blobs/src/Azure.Storage.Blobs.csproj b/sdk/storage/Azure.Storage.Blobs/src/Azure.Storage.Blobs.csproj
index 334e3b10fe41..e78d8243720d 100644
--- a/sdk/storage/Azure.Storage.Blobs/src/Azure.Storage.Blobs.csproj
+++ b/sdk/storage/Azure.Storage.Blobs/src/Azure.Storage.Blobs.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure.Storage.Blobs client library</AssemblyTitle>
-    <Version>12.4.3</Version>
+    <Version>12.5.0-preview.1</Version>
     <DefineConstants>BlobSDK;$(DefineConstants)</DefineConstants>
     <PackageTags>Microsoft Azure Storage Blobs;Microsoft;Azure;Blobs;Blob;Storage;StorageScalable;$(PackageCommonTags)</PackageTags>
     <Description>
diff --git a/sdk/storage/Azure.Storage.Common/CHANGELOG.md b/sdk/storage/Azure.Storage.Common/CHANGELOG.md
index e55008f8270d..eff827c18bfb 100644
--- a/sdk/storage/Azure.Storage.Common/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Common/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## 12.5.0-preview.1 (Unreleased)
+
+
 ## 12.4.2 (2020-06)
 - This release contains bug fixes to improve quality.
 
diff --git a/sdk/storage/Azure.Storage.Common/src/Azure.Storage.Common.csproj b/sdk/storage/Azure.Storage.Common/src/Azure.Storage.Common.csproj
index 44e5d5099b2a..57daa4b8b304 100644
--- a/sdk/storage/Azure.Storage.Common/src/Azure.Storage.Common.csproj
+++ b/sdk/storage/Azure.Storage.Common/src/Azure.Storage.Common.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure.Storage.Common client library</AssemblyTitle>
-    <Version>12.4.2</Version>
+    <Version>12.5.0-preview.1</Version>
     <DefineConstants>CommonSDK;$(DefineConstants)</DefineConstants>
     <PackageTags>Microsoft Azure Storage Common, Microsoft, Azure, StorageScalable, azureofficial</PackageTags>
     <Description>
diff --git a/sdk/storage/Azure.Storage.Files.DataLake/CHANGELOG.md b/sdk/storage/Azure.Storage.Files.DataLake/CHANGELOG.md
index 08e9177ef4c0..f22a8c6b3c87 100644
--- a/sdk/storage/Azure.Storage.Files.DataLake/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Files.DataLake/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## 12.3.0-preview.1 (Unreleased)
+
+
 ## 12.2.1 (2020-06)
 - Fixed bug where download could hang indefinietly on .NET Framework
 
diff --git a/sdk/storage/Azure.Storage.Files.DataLake/src/Azure.Storage.Files.DataLake.csproj b/sdk/storage/Azure.Storage.Files.DataLake/src/Azure.Storage.Files.DataLake.csproj
index ea0cc43007b0..9b9421726985 100644
--- a/sdk/storage/Azure.Storage.Files.DataLake/src/Azure.Storage.Files.DataLake.csproj
+++ b/sdk/storage/Azure.Storage.Files.DataLake/src/Azure.Storage.Files.DataLake.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure.Storage.Files.DataLake client library</AssemblyTitle>
-    <Version>12.2.1</Version>
+    <Version>12.3.0-preview.1</Version>
     <DefineConstants>DataLakeSDK;$(DefineConstants)</DefineConstants>
     <PackageTags>Microsoft Azure Storage Files;Microsoft;Azure;File;Files;Data Lake;Storage;StorageScalable;$(PackageCommonTags)</PackageTags>
     <Description>
diff --git a/sdk/storage/Azure.Storage.Files.Shares/CHANGELOG.md b/sdk/storage/Azure.Storage.Files.Shares/CHANGELOG.md
index 554eccf05110..567702474ad0 100644
--- a/sdk/storage/Azure.Storage.Files.Shares/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Files.Shares/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## 12.3.0-preview.1 (Unreleased)
+
+
 ## 12.2.2 (2020-06)
 - Fixed bug where copy from URL did not handle non-ASCII characters correctly
 - Fixed bug where download could hang indefinietly on .NET Framework
diff --git a/sdk/storage/Azure.Storage.Files.Shares/src/Azure.Storage.Files.Shares.csproj b/sdk/storage/Azure.Storage.Files.Shares/src/Azure.Storage.Files.Shares.csproj
index 34537bb65950..d8c1b0877a4d 100644
--- a/sdk/storage/Azure.Storage.Files.Shares/src/Azure.Storage.Files.Shares.csproj
+++ b/sdk/storage/Azure.Storage.Files.Shares/src/Azure.Storage.Files.Shares.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure.Storage.Files.Shares client library</AssemblyTitle>
-    <Version>12.2.2</Version>
+    <Version>12.3.0-preview.1</Version>
     <DefineConstants>FileSDK;$(DefineConstants)</DefineConstants>
     <PackageTags>Microsoft Azure Storage Files;Microsoft;Azure;File;Files;Storage;StorageScalable;$(PackageCommonTags)</PackageTags>
     <Description>
diff --git a/sdk/storage/Azure.Storage.Queues/CHANGELOG.md b/sdk/storage/Azure.Storage.Queues/CHANGELOG.md
index 60875eb14f72..72411768bc1b 100644
--- a/sdk/storage/Azure.Storage.Queues/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Queues/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Release History
 
+## 12.4.0-preview.1 (Unreleased)
+
+
 ## 12.3.1 (2020-06)
 - This release contains bug fixes to improve quality.
 
diff --git a/sdk/storage/Azure.Storage.Queues/src/Azure.Storage.Queues.csproj b/sdk/storage/Azure.Storage.Queues/src/Azure.Storage.Queues.csproj
index 73a84bf15eef..22499d097f26 100644
--- a/sdk/storage/Azure.Storage.Queues/src/Azure.Storage.Queues.csproj
+++ b/sdk/storage/Azure.Storage.Queues/src/Azure.Storage.Queues.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <AssemblyTitle>Microsoft Azure.Storage.Queues client library</AssemblyTitle>
-    <Version>12.3.1</Version>
+    <Version>12.4.0-preview.1</Version>
     <DefineConstants>QueueSDK;$(DefineConstants)</DefineConstants>
     <PackageTags>Microsoft Azure Storage Queues;Microsoft;Azure;Queues;Queue;Storage;StorageScalable;$(PackageCommonTags)</PackageTags>
     <Description>