What is new in .NET 4.5

Jul 2, 2012Download as PPTX, PDF0 likes1,584 views

.NET 4.5 focuses on improvements to the .NET framework rather than tooling. Key changes include support for asynchronous programming, performance improvements like larger arrays and faster GAC, internationalization support, and updates to core frameworks like WCF, WPF, and Workflow. It requires Windows 7 or higher and is not supported on XP or Vista. Portable Class Libraries are fully supported across .NET 4.5, Silverlight, Windows Phone and Metro style apps.

What is new in .NET 4.5

Robert MacLean
10th May 2012

Agenda
Focus on the framework
Not tooling - mostly
Visual Studio, TFS, Unit Testing
Nothing language specific
C# async
Nothing for Windows 8 development - mostly
.NET APIs for Metro Style Apps

Portable Class Libraries
Was out of band in 4.0
Allows single assembly to be used for
.NET 4.0 (WinForms, WPF, ASP.NET)
.NET 4.5 (WinForms, WPF, ASP.NET)
Silverlight 4
Silverlight 5
Windows Phone 7
Windows Phone 7.1
.NET for Metro Style Apps
Xbox 360

Portable Class Libraries Support
Feature Assemblies .NET Framework Metro style Silverligh Windows Xbox 360
t Phone
mscorlib.dll, System.dll, System.Core.dll,
Core System.Xml.dll, System.Xml.Serialization.dll

System.ComponentModel.Composition.dll
Managed Extensibility
Framework (MEF)
System.Net.dll
Network Class Library
(NCL)
System.Runtime.Serialization.dll
Serialization
System.ServiceModel.dll,
Windows Communication System.ServiceModel.Web.dll
Foundation (WCF)
System.Windows.dll
Model-View-View Model
(MVVM)
System.ComponentModel.DataAnnotations.
Data annotations dll
System.Xml.Linq.dll
LINQ to XML
Fully Some Not
Supported restrictions Supported

Async
TPL massively improved
Up to 400% with a recompile
PLINQ gets more support for parallel
Example: OrderBy -> Take
Concurrent classes improve
~ 15% with recompiles
Parallel.Foreach can disable buffering
ThreadLocal<T>.Values
Timer based cancellations
TPL Dataflow

Improvements
Regex.MatchTimeout
Global (app domain) Culture settings 
Consoles support UTF-16
String compare on Windows 8 uses the OS
compare
Sort versioning
.NET contains internal tables to do sorting, updated each release
.NET 2.0 SP 1 to .NET 4: Unicode 5
.NET 4.5 on Win7: Unicode 5
.NET 4.5 on Win8: Unicode 6

International Internet & Networking
Support for International Domain Names
Rules different depends on OS
Windows 8: RFC 5891
Windows 7: RFC 3490
Support for Email Address Internationalisation
Support for Dual-Stack Socket
Single socket that works for IPv4 or IPv6
Websockets
System.Net.Websockets
As William

MEF
Support for generics
“Convention” based
Setup conventions in constructor

Support for ASP.NET MVC
Proper convention – use the Parts folder

WPF
The ribbon
INotifyDataErrorInfo
Async & Sync data validation

Partial units in virtualised panels
Delay option for updating sources

WCF
Generate service & data contracts from WSDL
Support for Portable Class Libraries
Better configs (especially for clients)
Streaming changes
Async support
On IIS, buffering is removed – also means maxRequestLength is ignored 
Default values updated
Most pushed to max
Visual Studio can validate config files
Binary encoding now can be compressed
UDP support 
Multiple authentication support 
Paste XML as classes

Workflow
VERSIONING 
Minor improvements to activities
NoPersist
Flow chart display & unconnected validattion
Minor improvements to designer
Search
Automatic containers
Multi-select
Outline view
Annotations
Build time validation of workflow
C# Support

ASP.NET
Core
Unvalidated fields
Scenario: Input of HTML
Bundling & Minification of client scripts
JavaScript & CSS
Anti-XSS built in

Web Forms
Binding
Fallback support for CDNs
HTML 5 types

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What is new in .NET 4.5

1. What is new in .NET 4.5 Robert MacLean 10th May 2012

2. Agenda Focus on the framework Not tooling - mostly Visual Studio, TFS, Unit Testing Nothing language specific C# async Nothing for Windows 8 development - mostly .NET APIs for Metro Style Apps

3. Requirements Client OS Windows 7 and 8 Vista & XP NOT SUPPORTED! Server OS Windows Server 2008 SP 1 onwards Windows Server 2008 SP 2 required for core profile support Itanium not supported

4. .NET 4 and how it sits in the ecosystem

5. Portable Class Libraries Was out of band in 4.0 Allows single assembly to be used for .NET 4.0 (WinForms, WPF, ASP.NET) .NET 4.5 (WinForms, WPF, ASP.NET) Silverlight 4 Silverlight 5 Windows Phone 7 Windows Phone 7.1 .NET for Metro Style Apps Xbox 360

6. Portable Class Libraries Support Feature Assemblies .NET Framework Metro style Silverligh Windows Xbox 360 t Phone mscorlib.dll, System.dll, System.Core.dll, Core System.Xml.dll, System.Xml.Serialization.dll System.ComponentModel.Composition.dll Managed Extensibility Framework (MEF) System.Net.dll Network Class Library (NCL) System.Runtime.Serialization.dll Serialization System.ServiceModel.dll, Windows Communication System.ServiceModel.Web.dll Foundation (WCF) System.Windows.dll Model-View-View Model (MVVM) System.ComponentModel.DataAnnotations. Data annotations dll System.Xml.Linq.dll LINQ to XML Fully Some Not Supported restrictions Supported

7. The Performance List Arrays can be larger than 2Gb Opt-in config setting & 64bit only http://bit.ly/JaQXn8 GAC on servers is faster ZIP is smaller System.IO.Compression ProfileOptimization Improve JIT on n runs based on recorded data n>1

8. Async TPL massively improved Up to 400% with a recompile PLINQ gets more support for parallel Example: OrderBy -> Take Concurrent classes improve ~ 15% with recompiles Parallel.Foreach can disable buffering ThreadLocal<T>.Values Timer based cancellations TPL Dataflow

9. Improvements Regex.MatchTimeout Global (app domain) Culture settings  Consoles support UTF-16 String compare on Windows 8 uses the OS compare Sort versioning .NET contains internal tables to do sorting, updated each release .NET 2.0 SP 1 to .NET 4: Unicode 5 .NET 4.5 on Win7: Unicode 5 .NET 4.5 on Win8: Unicode 6

10. International Internet & Networking Support for International Domain Names Rules different depends on OS Windows 8: RFC 5891 Windows 7: RFC 3490 Support for Email Address Internationalisation Support for Dual-Stack Socket Single socket that works for IPv4 or IPv6 Websockets System.Net.Websockets As William

11. MEF Support for generics “Convention” based Setup conventions in constructor Support for ASP.NET MVC Proper convention – use the Parts folder

12. WPF The ribbon INotifyDataErrorInfo Async & Sync data validation Partial units in virtualised panels Delay option for updating sources

13. WPF

14. WCF Generate service & data contracts from WSDL Support for Portable Class Libraries Better configs (especially for clients) Streaming changes Async support On IIS, buffering is removed – also means maxRequestLength is ignored  Default values updated Most pushed to max Visual Studio can validate config files Binary encoding now can be compressed UDP support  Multiple authentication support  Paste XML as classes

15. Workflow VERSIONING  Minor improvements to activities NoPersist Flow chart display & unconnected validattion Minor improvements to designer Search Automatic containers Multi-select Outline view Annotations Build time validation of workflow C# Support

16. ASP.NET Core Unvalidated fields Scenario: Input of HTML Bundling & Minification of client scripts JavaScript & CSS Anti-XSS built in Web Forms Binding Fallback support for CDNs HTML 5 types

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