Make version numbers more explicit where necessary.

Author: Stephen Tramer

docs-conceptual/azps-1.3.0/install-az-ps.md

@@ -17,7 +17,7 @@ are supported.
 
 ## Requirements
 
-Azure PowerShell works with PowerShell 5.1 or higher on Windows, or PowerShell 6.x on any platform.
+Azure PowerShell works with PowerShell 5.1 or higher on Windows, or PowerShell 6 on any platform.
 To check your PowerShell version, run the command:
 
 ```powershell-interactive
@@ -27,7 +27,7 @@ $PSVersionTable.PSVersion
 If you have an outdated version or need to install PowerShell, see [Installing various versions of PowerShell](/powershell/scripting/setup/installing-powershell). Install
 information for your platform is linked from that page.
 
-If you are using PowerShell 5.x on Windows, you also need .NET Framework 4.7.2 installed. For instructions
+If you are using PowerShell 5 on Windows, you also need .NET Framework 4.7.2 installed. For instructions
 on updating or installing a new version of .NET Framework, see the [.NET Framework installation guide](/dotnet/framework/install).
 
 ## Install the Azure PowerShell module

docs-conceptual/azps-1.3.0/new-azureps-module-az.md

@@ -14,8 +14,8 @@ Starting in December 2018, the Azure PowerShell Az module is in general release
 PowerShell module for interacting with Azure. Az offers shorter commands, improved stability, and
 cross-platform support. Az also offers feature parity and an easy migration path from AzureRM.
 
-Az uses the .NET Standard library, which means it runs on PowerShell 5.x and PowerShell 6.x.
-Since PowerShell 6.x can run on Linux, macOS, and Windows, Azure PowerShell is now available for all platforms.
+Az uses the .NET Standard library, which means it runs on PowerShell 5 and PowerShell 6.
+Since PowerShell 6 can run on Linux, macOS, and Windows, Azure PowerShell is now available for all platforms.
 Using .NET Standard allows us to unify the code base of Azure PowerShell with minimal impact on users.
 
 Az is a new module, so the version has been reset to 1.0.0.

docs-conceptual/azps-1.3.0/overview.md

@@ -19,7 +19,7 @@ Azure PowerShell is also available on Azure Cloud Shell.
 ## About the new Az module
 
 This documentation describes the new Az module for Azure PowerShell. This new module is written from the
-ground up in .NET Standard. Using .NET Standard allows Azure PowerShell to run under PowerShell 5.x on Windows
+ground up in .NET Standard. Using .NET Standard allows Azure PowerShell to run under PowerShell 5 on Windows
 or PowerShell 6 on any platform. The Az module is now the intended way to interact with Azure through PowerShell.
 AzureRM will continue to get bug fixes, but no longer receive new features.
 
@@ -38,7 +38,7 @@ The [AzureRM documentation](/powershell/azure/azurerm) is also available.
 
 ## Run or install
 
-You can install Azure PowerShell on any platform which supports PowerShell 5.x or PowerShell 6.x, or run
+You can install Azure PowerShell on PowerShell 5.1 or higher on Windows, PowerShell 6 on any platform, or run
 in Azure Cloud Shell.
 
 * To run in your browser with Azure Cloud Shell, see [Quickstart for PowerShell in Azure Cloud Shell](/azure/cloud-shell/quickstart-powershell).