NET Versioning and Multi Targeting. NET 4. 5 is an in place upgrade to. Trcdjizvu.png' alt='Net Framework 4.0 V 30319 Offline Installer' title='Net Framework 4.0 V 30319 Offline Installer' />NET 4. Say what you will about the past ridiculousness of. NET Framework versioning, since the confusion of. NET 3. 5. SP1 theyve been trying to get it right. Its not the magic of Java Version 6 Update 3. Oo. Back in July of 2. I wrote a post on Issues with. Download Complete Microsoft. NET Framework version 4. Setup which is an offline installer. This can be used to install the framework without the need of internet. The Wake On Lan Tool 2 is the successor of the Wake On Lan Tool Classic. The Wake On Lan Tool 2 is a complete rewrite of the successful classic version with over. A409593D453D7954?v=mpbl-1' alt='Net Framework 4.0 V 30319 Offline Installer' title='Net Framework 4.0 V 30319 Offline Installer' />Let me make something perfectly clear, and believe me when I say this, its with a wide open. I installed the Visual Studio 11 Beta and suddenly all the async action methods I had created under the VS 11 Developer preview started hanging apparently this issue. Programming ASP. NET MVC 4. Jess Chadwick, Todd Snyder, and Hrusikesh Panda. Beijing Cambridge Farnham Kln Sebastopol Tokyo. Workspace Environment Manager previously Norskale as many people may be familiar with is a recent aquisition by Citrix that will fill the gap when it comes to. Net Framework 4.0 V 30319 Offline Installer' title='Net Framework 4.0 V 30319 Offline Installer' />NET and Microsoft Product Versioning that got the attention of some folks. I was most concerned about some platform updates to. Accidentally ran a. Virus, Trojan, Spyware, and Malware Removal Logs Yesterday, I wasnt paying attention and launched a. When troubleshooting NPM or SAM, you may need output from an SNMPwalk to verify device data. NET 4 and the way they were named. Meetings were had and those small updates now have simpler names versions like NET 4. Im not going to tell you its not confusing today. I do think that things are getting better and becoming less confusing. NET 4. 5 is a step in the right direction of transparency in versioning. The. NET Framework can version in two ways. There are side by side installs and there are in place upgrades. A major version means side by side and a minor version means in place. Side by side means that different versions of. NET can live together on the same machine. In place upgrade means that the CLR is the same but new libraries are added as well as bug fixes and performance improvements Theres been some concern about how. NET 4. 5 is an in place upgrade of. NET 4. That means. NET 4. 5 is still the v. CLR and adds new libraries as well as improvements to the core CLR itself. Rick Strahl said on his blog Note that this in place replacement is very different from the side by side installs of. NET 2. 0 and 3. 03. CLR. The two 3. x versions were basically library enhancements on top of the core. NET 2. 0 runtime. Patch Para Pes 2008 Pc. Both versions ran under the. NET 2. 0 runtime which wasnt changed other than for security patches and bug fixes for the whole 3. The 4. 5 update instead completely replaces the. NET 4. 0 runtime and leaves the actual version number set at v. Rick has a great post with a lot of detail and information. However, respectfully, I dont think. NET 4. 5 vs. NET 4 is as different as Rick implies. In fact. NET 3 and. NET 3. 5 both upgraded the system and CLR in place as well. Perhaps if 3 and 3. NET 2. 5 and. NET 2. The community is always concerned about breaking changes, much like we are here with. NET 4 and. NET 4. Unfortunately reality and marketing names havent always matched, but going forward I think we all agree that Major Version New CLR Minor Version Bug fixes, new libraries Revision Bug fixes, no breaking changes, small improvements. NET 4. 5 is not a radically different side by side CLR. A new CLR would be a theoretical. NET 5 In my opinion. Could something break with. NET 4. 5 This is why its in beta now, so now is the time to speak up. Its possible something could break but unlikely according the. NET Blog. Here are the known. NET 4. 5 breaking changes most are pretty obscure. The kinds of breaking changes Ive seen myself in the wild have been primarily when folks are relying on reflection or internal data structures. These internals arent public contracts so they may have changed. I realize that when a change breaks YOU it feels like a situation when 1. It sucks, but in fact there are minimal breaking changes in. NET 4. 5. Can I get. NET 2. 0, 3. 5, 4 and 4. Yes. Can I develop apps with different versions with Visual Studio 1. Beta Sure, you can multi target all these versions and even plugin more targeting packs. Ill do a blog post later this week on Portable Libraries, a new version in. NET 4. 5 that makes creating libraries for any CLR including Xbox, Phone, Mono and others. Developing Safely for both. NET 4 and. NET 4. Its been implied on blogs that if you install. NET 4. 5 on your machine that you cant safely develop for. NET 4. In Ricks post, he compares two DLLs on a. NET 4 machine and again after the. NET 4. 5 in place upgrade. How can you target safely against. NET 4 if youve installed. NET 4. 5 You dont have those. NET 4 DLLs anymore, right Actually you do. They are in C Program Files x. Reference AssembliesMicrosoftFramework. NETFramework. Lets prove it on a machine with Visual Studio 1. Beta. Ill make a DLL and reference System. Web and make use of one of the added types in that assembly. Yes, its a screenshot of code, but hang in there. Now Ill change the properties of my project from. NET 4. 5 to. NET 4. I wont change anything else. Ill build. Note that the type isnt there, I get a build error and I cant reference the namespace. You will know if youre using new. NET 4. 5 functionality. The multi targeting build system was designed for this and existed as far back as. NET 3. 5. Those reference assemblies are there to catch this kind of thing. So while. NET 4 and. NET 4. 5 dont live side by side on your system at runtime, Visual Studio knows about all the different versions of. NET and the compiler will reference different versions when you build. If you are making a client app, like Win. Forms, Console, WPF, etc, this is all automatic. Your app. config contains that fact that you need. NET 4. 5 and youll even get a prompt to install it. Runtime versionv. NETFramework,Versionv. So if I run my. NET 4. Console App on a. NET 4. 0 machine now I get a nice dialog. Looks like this technique doesnt work on ASP. NET I would expect a Yellow Screen of Death. I will talk to the team about that. I think this is a good thing and ASP. NET should respect it also. UPDATE 2 The system will throw an error when an ASP. NET 4. 5 application is deployed to an ASP. NET 4 system. The default templates on for ASP. NET 4. 5 applications include the target. Framework attribute set to 4. Framework4. 5 lt system. Gamehouse Mind Medley on this page. This will throw a YSOD if you deploy a 4. The target. Framework attribute currently references a version that is later than the installed version of the. NET Framework. UPDATE If you really, really want to detect. NET 4. 5 at runtime, dont check versions or build numbers. Check for the existence of the feature you want to use. For example, from this Stackoverflow question by Christian K, heres how to detect. NET 4. 5 programmatically. However, David from the CLR team in the comments says that this is not a good idea. He says to check if an important feature is there and use it. Torrent Shin Chan Episodes Hindi. Dont cheat and infer. NET versions. The Is. Net. 45. Or. Higher example is not what wed recommend. By feature detection, we mean detecting the presence of a feature before you use that feature, lt i notlt i using the presence of a feature to determine what version of. NET you are runnning on. Is. Net. 45. Or. Newer Class Reflection. Context exists from. NET 4. 5 onwards. Type. Get. TypeSystem. Reflection. Reflection. Context, false null Microsoft has said the same thing about Operating System features Identifying the current operating system is usually not the best way to determine whether a particular operating system feature is present. This is because the operating system may have had new features added in a redistributable DLL. Rather than using Get. Version. Ex to determine the operating system platform or version number, test for the presence of the feature itself. Related Posts. Sponsor My sincere thanks to Axosoft for sponsoring this weeks Hanselman. 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