public string GetReleaseNotes(string uid)
        {
            if (uid == null)
            {
                throw new ArgumentNullException(nameof(uid));
            }

            var packageUid = PackageUid.Parse(uid);

            if (string.IsNullOrEmpty(packageUid.Version))
            {
                HttpContext.Response.StatusCode = (int)HttpStatusCode.BadRequest;
                return(null);
            }

            return(_packageManagerService.GetPackageReleaseNotes(packageUid));
        }