![]() NET Standard that you can target, based on which. NET libraries.įor a table to help understand what the highest version of. Tooling story for building multi-platform. NET Standard will replace Portable Class Libraries (PCLs) as the NET Framework binaries, significantly increasing the set of libraries that you can reference from your. NET Standard 2.0 includes a compatibility shim for. NET Core, this will add many of the existing APIs NET platforms and prevents future fragmentation. NET developers across all platforms by bringing all the APIs that you expect and love across the environments that you need: desktop applications, mobile apps & games, and cloud services: NET Standard solves the code sharing problem for. NET Standard Library allows code sharing across all these different flavours: NET Standard Library will enable for you (cross-framework compatibility) Like most of us, you are probably in the situation below: Your current application scenario (fragmented) As pictures are worth a thousand words, the following will make things very clear:ġ. NET Standard is intended to be One Library to Rule Them All. ![]() To quote MSDN as an authoritative source. NET Standard instead of Portable Class Libraries. To future-proof your applications for code sharing and reuse, you would rather implement. NET Framework can, therefore, be identified as flavours of. If you want to implement a library that is portable to the. NET Core Class Library is built upon the. NET implementation(s) and how much API surface area is available.Ī. Here is an interactive matrix that shows which. NET Core library templates exist to access more API surface area (at the expense of compatibility) and to specify a platform against which to build an executable. NET Standard library templates exist to run on multiple runtimes (at the expense of API surface area). NET Standard is compatible with libraries that target that. NET Standard exists is for portability it defines a set of APIs that. Ignoring libraries for a moment, the reason that. That's important, for instance, to make unit test class libraries runnable. NET Core libraries specify a runtime and come with an application model. NET Standard library (such as ) and some of which are not compatible with the. The latter includes approximately 20 additional libraries, some of which we can add manually to our. NET Core libraries come with everything in. NET Standard libraries come with everything in NETStandard.Library, whereas. ![]() On the other hand, libraries that target. ![]() What is the difference between Class Library (.NET Standard) and Class Library (.NET Core)?Ĭompatibility: Libraries that target. For instance, the package is compatible with. The library will not have access to some parts of the. NET Core 1.0, Universal Windows Platform 10.0, and any other platform that supports. NET Standard 1.3 will be compatible with applications that target. NET Core applications to be compatible with your library.įor example, a library that targets. NET API surface area your library can access, and you are okay with allowing only. NET Core library when you want to increase the. NET API surface area your library can access. NET Standard library when you want to increase the number of applications that will be compatible with your library, and you are okay with a decrease in the. ![]() The decision is a trade-off between compatibility and API access. ![]()
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