Adding upgrade notes
Adding upgrade notes

localheinz/ProxyManager,localheinz/ProxyManager,malukenho/ProxyManager,huang-lu/ProxyManager,Prezent/GeneratedHydrator,malukenho/ProxyManager,Ocramius/GeneratedHydrator,pascaldevink/ProxyManager,flip111/GeneratedHydrator,pascaldevink/ProxyManager,Ocramius/ProxyManager,malukenho/ProxyManager,huang-lu/ProxyManager,Ocramius/CodeGenerationUtils,pascaldevink/ProxyManager,localheinz/ProxyManager,huang-lu/ProxyManager