snapshot of https://github.com/ThreeDotsLabs/watermill.git (master, 2026-09-15; blobs > 131072B omitted)

UPGRADE-0.3.md

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+# UPGRADE FROM 0.2.x to 0.3
+
+# `watermill/message`
+
+- `message.Message.Ack` and `message.Message.Nack` now return `bool` instead of `error`
+- `message.Subscriber.Subscribe` now accepts `context.Context` as the first argument
+- `message.Subscriber.Subscribe` now returns `<-chan *Message` instead of `chan *Message`
+- `message.Router.AddHandler` and `message.Router.AddNoPublisherHandler` now panic, instead of returning error
+
+# `watermill/message/infrastructure`
+
+- updated all Pub/Subs to new `message.Subscriber` interface
+- `gochannel.NewGoChannel` now accepts `gochannel.Config`, instead of positional parameters
+- `http.NewSubscriber` now accepts `http.SubscriberConfig`, instead of positional parameters
+
+# `watermill/message/router/middleware`
+
+- `metrics.NewMetrics` is removed, please use the [metrics](components/metrics) component instead
+
+# `watermill`
+
+- `watermill.LoggerAdapter` interface now requires a `With(fields LogFields) LoggerAdapter` method