When I've edited the "extension.vsixmanifest" to include supported versions up to 16.99 then when starting the installer I get error:
Install Error : Microsoft.VisualStudio.ExtensionManager.MissingReferencesException: This extension cannot be installed because the following references are missing:
-Microsoft.VisualStudio.Component.CoreEditor (Microsoft.VisualStudio.Component.CoreEditor)
at Microsoft.VisualStudio.ExtensionManager.EngineUtilities.EnsureNoMissingReferences(IEnumerable`1 missingRefs)
at Microsoft.VisualStudio.ExtensionManager.PackageInstaller.PrepareEngineInstall(IDependencyGraph dGraph, IDependencyComparisonSeed seed, Component vsCompPkg, Boolean isProductComponent, Int32& totalInstallationSteps)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.PerformSetupEngineInstall(InstallableExtensionImpl extension, Boolean installPerMachine, Boolean isPackComponent, IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList modifiedInstalledExtensionsList, IProgress`1 progress, InstallFlags installFlags, AsyncOperation asyncOp, Version targetedVsVersion, IInstalledExtension& newExtension)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallInternal(InstallableExtensionImpl extension, InstallFlags installFlags, IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList modifiedInstalledExtensionsList, AsyncOperation asyncOp, IProgress`1 progress, Version targetedVsVersion)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.BeginInstall(IInstallableExtension installableExtension, InstallFlags installFlags, AsyncOperation asyncOp, Version targetedVsVersion)
at Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallWorker(IInstallableExtension extension, InstallFlags installFlags, AsyncOperation asyncOp)