# Monday, January 18, 2010
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I’ve just realised that DevWeek 2010 is on the horizon. DevWeek is one of my favourite conferences  - lots of varied talks, vendor independence and I get to hang out with lots of friends for the week.

This year I’m doing a preconference talk and two sessions:

A Day of .NET 4.0
Mon 15th March 2010
WORKSHOP REF: M1
.NET 4.0 is a major release of .NET, including the first big changes to the .NET runtime since 2.0. In this series of talks we will look at the big changes in this release in C#, multithreading, data access and workflow.
The best-known change in C# is the introduction of dynamic typing. However, there have been other changes that may affect your lives as developers more, such as support for generic variance, named and optional parameters. There is a whole library for multithreading, PFx, that not only assists you in parallelizing algorithms but in fact replaces the existing libraries for multithreading with a unified, powerful single API.
Entity Framework has grown up – the initial release, although gaining some popularity, missed features that made it truly usable in large-scale systems. The new release, version 4.0, introduces a number of features, such as self-tracking objects, that assist using Entity Framework in n-tier applications.
Finally, workflow gets a total rewrite to allow the engine to be used far more widely, having overcome limitations in the WF 3.5 API.
This workshop will take you through all of these major changes, and we’ll also talk about some of the other smaller but important ones along the way.

An Introduction to Windows Workflow Foundation 4.0
Tues 16th March 2010
.NET 4.0 introduces a new version of Windows Workflow Foundation. This new version is a total rewrite of the version introduced with .NET 3.0. In this talk we look at what Microsoft are trying to achieve with WF 4.0, why they felt it necessary to rewrite rather than modify the codebase, and what new features are available in the new library. Along the way we will be looking at the new designer, declarative workflows, asynchronous processing, sequential and flowchart workflows and how workflow’s automated persistence works.

Creating Workflow-based WCF Services
Tues 16th March 2010
There are very good reasons for using a workflow to implement a WCF service: workflows can provide a clear platform for service composition (using a number of building block services to generate a functionally richer service); workflow can manage long running stateful services without having to write your own plumbing to achieve this. The latest version of Workflow, 4.0, introduces a declarative model for authoring workflows and new activities for message based interaction. In addition we have a framework for flexible message correlation that allows the contents of a message to determine which workflow the message is destined for. In this session we will look at how you can consume services from workflow and expose the resulting workflow itself as a service.

As well as these you may well see me popping up as a guest code-monkey in the other Rock Solid Knowledge sessions. Hope to see you there

.NET | WCF | WF