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What's the latest version of Roslyn my analyzer can target if I support VS2015?

Tags:

c#

.net

visual-studio

roslyn

visual-studio-2015

I'm writing a Roslyn diagnostic analyzer that should work on VS2015 and later editions. I want to know the latest version of Microsoft.CodeAnalysis I can use with my project and still support VS2015. I need to use an API that was added in Roslyn 1.2.0 (AnalysisContext.EnableConcurrentExecution), but I think that version of Roslyn isn't included with VS2015 (IIRC, only VS2017 supports C# 7). Does this mean I can't use this API in my analyzer?

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James Ko Avatar asked Aug 14 '17 16:08

James Ko

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The simplest way is File -> Preferences -> Settings, from there search for "roslyn" and tick the setting "Enable Roslyn Analyzers". Be sure to save your settings.

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NET Compiler Platform (Roslyn) Analyzers inspect your C# or Visual Basic code for style, quality, maintainability, design, and other issues. This inspection or analysis happens during design time in all open files. Analyzers are divided into the following groups: Code style analyzers are built into Visual Studio.

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1 Answers

Yes, Roslyn 2.3.0 will only work on Visual Studio 2017.3 and newer.

In general the mappings of Roslyn to Visual Studio versions works like this:

Roslyn 1.0.x -> Visual Studio 2015.0 (RTM)

Roslyn 1.1.x -> Visual Studio 2015.1 (Update 1)

Roslyn 1.2.x -> Visual Studio 2015.2 (Update 2)

Roslyn 1.3.x -> Visual Studio 2015.3 (Update 3)

Roslyn 2.0.x -> Visual Studio 2017.0 (RTM)

Roslyn 2.1.x -> Visual Studio 2017.1.x

Roslyn 2.2.x -> Visual Studio 2017.2.x

Roslyn 2.3.x -> Visual Studio 2017.3.x

Roslyn 2.4.x -> Visual Studio 2017.4.x

Roslyn 2.6.x -> Visual Studio 2017.5.x

Roslyn 2.7.x -> Visual Studio 2017.7.x

Roslyn 2.8.x -> Visual Studio 2017.7.x

Roslyn 2.9.x -> Visual Studio 2017.8.x

Roslyn 2.10.x -> Visual Studio 2017.9.x

Roslyn 3.0.x -> Visual Studio 2019.0 (RTM)

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Jonathon Marolf Avatar answered Oct 29 '22 11:10

Jonathon Marolf
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