1. .NET 4.5.1, what’s up Doc? Jose Luis Latorre Millás Software Engineer
Roche Diagnostics

2. .NET ’ Developer Productivity 20’ Application Performance 10’ Continuous Innovation 15’ Conclusion 5’

3. Chapter 1/5
.NET 4.5.1

4. Quick Reminder – What Is .NET
Entity Frame-work
ASP. NET
WCF
WPF
Win Forms
Work
Flow
And more!
Base Class Libraries
The CLR
JIT & NGEN
Garbage Collector
Security Model
Exception Handling
Loader & Binder
Profiling& Debugging APIs

5. .NET (A *Very* Simplified View)
Runtime
Libraries
Languages
Tools
.NET

6. .NET Evolution .NET 4.5.1 C# + VB 4.5 Asynchronous Programming
Dynamic + Language Parity
C# VB 9.0
Language Integrated Query
C# VB 8.0
Generics
C# VB 7.0
3.5
Managed Code
3.0
4.5
.NET 1.0
.NET 1.1
.NET 2.0
.NET 4.0
2002
2003
2010
- Win8

7. .NET 4.5 is installed on 100+ million machines!
Build 2013
12/5/2018
First, a look at .NET 4.5
Client & Device
Async – for UI responsiveness
Windows Store apps -- WinRT
Windows Phone apps
.NET CF 3.9
Web & Cloud
Async – for server scaling
ASP.NET MVC4
ASP.NET Web API
ASP.NET Web Pages
Entity Framework Code-First
WebSockets
SignalR
Windows Azure Cloud Services 4.5 Support
Windows Azure Web Sites
Fundamentals
.NET Async (async + await)
Many new async APIs
WinRT interop
Multi-core JIT
MPGO – NGEN hot/cold splitting
Performance improvements
Reboot and reliability improvements to setup
Support Windows RT GC
Background GC
LOH heap balancing
LOH fragmentation reduction
GC low latency mode
GC awareness of NUMA and >64 processors
>2GB arrays (or objects)
Libraries
Portable libraries update
.NET Core Profile (Windows 8)
Extension methods for WinRT streams and async
NuGet
Immutable collections
Async for .NET 4
HttpClient for Portable
.NET 4.5 is installed on 100+ million machines!
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

8. .NET in A Nutshell
Developer Productivity
Application Performance
Continuous Innovation

9. Developer Productivity
Chapter 2/5
Developer Productivity

10. In 2005, a *little* feature called Edit & Continue was introduced, but there was something missing….

12. We have been waiting for 8 years…

13. 64-bit Edit and Continue is finally here!
Build 2013
12/5/2018
64-bit Edit and Continue is finally here!
Number 9 all time requested feature on UserVoice!
Works exactly the same as for 32-bit applications
Client (WPF, WinForms, etc.), Store and ASP.NET WAP projects are supported
For WAP projects, need to enable Edit & Continue in Project Properties
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

14. Wait, there is more…

16. Method Return Value Inspection
Build 2013
12/5/2018
Method Return Value Inspection
Now available for .NET! Access via Autos window or in the Immediate window ($ReturnValue) Can expand return value in the debugger
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

17. Async Debugging Improvements
Common question: How did I get here? Supported for Store Apps, Web apps, Desktop apps in W8.1 Enhancements to the Call Stack and Tasks window
Visual Studio 2012

18. Windows Store Development Improvements
Build 2013
12/5/2018
Windows Store Development Improvements
Convert System.IO.Stream to IRandomAccessStream
Allows much easier interop with existing .NET code
Better exception support for WinRT APIs
System.Exception.Message
System.Exception.StackTrace
WinRT type system enhancements
Nullable value types in WinRT structs
64-bit Edit and Continue support
Managed Return Value Inspection support
Async debugging enhancedments
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Convert Stream to IRandomAccessStream
Build 2013
12/5/2018
Convert Stream to IRandomAccessStream
From MSDN Forums…
// EXAMPLE: Get image from URL
var client = new HttpClient();
var stream = await client.GetStreamAsync(imgUrl);
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
var bitmap = new BitmapImage();
bitmap.SetSource(memoryStream); <-- error CS1503: Argument 1: cannot convert from 'System.IO.Stream' to 'Windows.Storage.Streams.IRandomAccessStream‘
bitmap.SetSource(memoryStream.AsRandomAccessStream()); <-- .NET 4.5.1
In .NET 4.5.1:
System.IO.WindowsRuntimeStreamExtensions.AsRandomAccessStream(Stream stream)
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. Rich exception interop support for WinRT APIs
In Windows 8, error propagation for WinRT APIs is through HRESULT
Important Exception information is lost unless a debugger is attached
In Windows 8.1, additional error information is available via System.Exception properties:
Message
StackTrace
Additional exception details from a C++ WinRT Component

21. WinRT Type System Enhancements
Build 2013
12/5/2018
WinRT Type System Enhancements
Support Nullable value types in WinRT structs
// Define the "titleAuthor" table of the Microsoft "pubs" database.
public struct titleAuthor {
// Author ID; format ###-##-####
public string au_id;
// Title ID; format AA####
public string title_id;
// Author ORD is nullable.
public short? au_ord;
// Royalty Percent is nullable.
public int? royaltyper; }
<-- error WME1060: 'System.Nullable<System.Int16>' is not a valid Windows Runtime field type.
<-- error WME1060: 'System.Nullable<System.Int32>' is not a valid Windows Runtime field type.
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

22. EF/ADO.NET Connection Resiliency
Build 2013
12/5/2018
EF/ADO.NET Connection Resiliency
Provide reliable connection to Azure DB Automatically retry/reconnect broken connection Provides great experience for connected devices It Just Works! No code or configuration changes other than installing .NET 4.5.1
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

23. Application Performance
Chapter 3/5
Application Performance

24. Build 2013
12/5/2018
ASP.NET App Suspension
Enables low latency, high density web sites for on-prem/private cloud
Shipping as part of IIS 8.5 in Windows Server 2012 R2 Preview
Provisioned through the Idle Worker Process Page-out capability in IIS
Early Results from our Performance Lab
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

25. ASP.NET App Suspension
In IIS Settings, set Idle Time-out Action to Suspended

26. ASP.NET App Suspension

27. On-demand Large Object Heap Compaction
.NET GC is quite well-tuned
In general, we should never have to use GC.Collect()
CAUTION: With great power comes great responsibility!
"Out of CPU, memory and disk, memory is typically the most important for overall system performance."
 Mark Russinovich

28. On-demand Large Object Heap Compaction
Refresher
Large objects (>85000 bytes) treated specially
Very expensive to compact
Collected with Gen 2
In .NET 4.5.1, you can now compact the Large Object Heap (LOH) to address heap fragmentation
The LOH mode is part of GCSettings:
public static class GCSettings {
public static GCLOHCompactionMode LOHCompactionMode { get; set; } }

29. On-demand Large Object Heap Compaction
Two ways to use GC LOH API:
Compact LOH right away
Compact LOH with the next full blocking GC
GCSettings.LOHCompactionMode = GCLOHCompationMode.CompactOnce;
GC.Collect();
// Next full blocking GC happens at some point, it will be a compacting GC that compacts the whole heap including LOH.
GCSettings.LOHCompactionMode = GCLOHCompationMode.CompactOnce;

30. Multi-Core JIT Improvements
15% improvement for cold startup
Minimize application startup time on multi-core CPUs
Now supported for ASP.NET web sites
Enabled automatically for ASP.NET apps
Performance data from our test labs

31. Consistent Performance Before & After Servicing .NET
Build 2013
12/5/2018
Consistent Performance Before & After Servicing .NET
Servicing .NET Framework for 1B+ PCs is a very BIG deal! Today, servicing the .NET Framework can lead to degradation in app performance directly afterwards This is due to core .NET assemblies being JIT-compiled for a period of time after servicing In Windows 8.1, app performance remains consistent even after servicing the .NET Framework Results in much better user experience and better battery life on tablets
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

32. Windows 8.1 Performance improvements
Build 2013
12/5/2018
Windows 8.1 Performance improvements
Defer loading of resources
Optimized XAML paths
Precompiled XAML in XBF (XAML Binary Format)
ListView & GridView Startup
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

33. Continuous Innovation
Chapter 4/5
Continuous Innovation

34. Build 2013
12/5/2018
.NET Framework Updates
Our goal is to keep the existing values of the .NET Framework while allowing for more agility and innovation
Existing Values
Great discoverability (all in in place)
Known quality, maturity and compatibility level
A single license and support policy
Centralized patching for security issues
*PLUS* New Values
Faster release cadence with a tighter customer feedback loop
Less friction with using features across .NET platforms
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

35. Immutable Collections
NuGet Releases
During .NET 4.5 two components were released via NuGet:
MEF (Microsoft.Composition) for web and Windows Store apps
TPL Dataflow (Microsoft.Tpl.Dataflow)
These (and new packages) are treated as any other .NET 4.5 component, i.e. are fully supported
System
Composition
TPL Dataflow
Http Client
Async
Immutable Collections
.NET (“in box”)

36. Announcing: .NET Framework NuGet Feed
Build 2013
12/5/2018
Announcing: .NET Framework NuGet Feed
One-stop shopping for all of your .NET Framework NuGet packages released by Microsoft
In Visual Studio 20[10,12,13]
On the Web
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

37. .NET Framework NuGet Feed
Already enabled in VS 2013 Preview
In VS 20[10,12]:
Tools.Options.Package Manager
Name: .NET Framework Packages
Source:
Visual Studio 20[10,12]

38. PCL (Portable Class Library) on all platforms
Not only windows..
Opens path to third parties like Mono/Xamarin to produce portable libraries that can be used anywhere .NET or Mono is supported (Mac, Linux..)

39. Chapter 5/5
Conclusion

40. What’s New in .NET Development
Windows Server Management Marketing
12/5/2018
What’s New in .NET Development
Developer Productivity
Application Performance
Continuous Innovation
64-bit Edit and Continue
Method Return Value Inspection
Async Debugging Enhancements
Windows Store development improvements
EF/ADO.NET Connection Resiliency
ASP.NET application suspension
Multi-core JIT improvements
On-demand large- object heap compaction
Consistent performance before and after servicing the .NET Framework
.NET Framework updates
NuGet releases
Curated .NET Framework NuGet packages
.NET delivers many new innovations while maintaining a high compatibility bar
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

41. Jose Luis Latorre
Blog:

42. 12/5/2018 1:55 PM
© 2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.