'SHA256Managed' is obsolete: 'Derived cryptographic types are obsolete. Use the Create method on the base type instead.' (https://aka.ms/dotnet-warnings/SYSLIB0021)

'RNGCryptoServiceProvider' is obsolete: 'RNGCryptoServiceProvider is obsolete. To generate a random number, use one of the RandomNumberGenerator static methods instead.' (https://aka.ms/dotnet-warnings/SYSLIB0023)

'ArrayParameterTypeDao.Read(NpgsqlTransaction, string, IEnumerable<Guid>, bool, DateTime?)' hides inherited member 'CompoundParameterTypeDao.Read(NpgsqlTransaction, string, IEnumerable<Guid>, bool, DateTime?)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

'ArrayParameterTypeDao.MapToDto(NpgsqlDataReader)' hides inherited member 'CompoundParameterTypeDao.MapToDto(NpgsqlDataReader)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

'CyclicRatioScaleDao.Read(NpgsqlTransaction, string, IEnumerable<Guid>, bool, DateTime?)' hides inherited member 'RatioScaleDao.Read(NpgsqlTransaction, string, IEnumerable<Guid>, bool, DateTime?)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

'CyclicRatioScaleDao.MapToDto(NpgsqlDataReader)' hides inherited member 'RatioScaleDao.MapToDto(NpgsqlDataReader)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

'HangfireApplicationBuilderExtensions.UseHangfireServer(IApplicationBuilder, BackgroundJobServerOptions, IEnumerable<IBackgroundProcess>, JobStorage)' is obsolete: 'Please use IServiceCollection.AddHangfireServer extension method instead in the ConfigureServices method. Will be removed in 2.0.0.'

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)