# Upgrading to WaterDrop 2.5

Please note, this **is** a **breaking** release, hence `2.5.0`.

1. If you used to catch `WaterDrop::Errors::FlushFailureError` now you need to catch `WaterDrop::Errors::ProduceError`. `WaterDrop::Errors::ProduceManyError` is based on the `ProduceError`, hence it should be enough.
2. Prior to `2.5.0` there was always a chance of partial dispatches via `produce_many_` methods. Now you can get the info on all the errors via `error.occurred`.
3. Inline `Rdkafka::RdkafkaError` are now re-raised via `WaterDrop::Errors::ProduceError` and available under `#cause`. Async `Rdkafka::RdkafkaError` errors are still directly available and you can differentiate between errors using the event `type`.
4. If you are using the Datadog listener, you need to:

```ruby
# Replace require:
require 'waterdrop/instrumentation/vendors/datadog/listener'
# With
require 'waterdrop/instrumentation/vendors/datadog/metrics_listener'

# Replace references of
::WaterDrop::Instrumentation::Vendors::Datadog::Listener.new
# With
::WaterDrop::Instrumentation::Vendors::Datadog::MetricsListener.new
```


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*Last modified: 2025-04-29 12:37:29*