payload: {"action":"opened","issue":{"url":"https://api.github.com/repos/libp2p/go-libp2p-core/issues/23","repository_url":"https://api.github.com/repos/libp2p/go-libp2p-core","labels_url":"https://api.github.com/repos/libp2p/go-libp2p-core/issues/23/labels{/name}","comments_url":"https://api.github.com/repos/libp2p/go-libp2p-core/issues/23/comments","events_url":"https://api.github.com/repos/libp2p/go-libp2p-core/issues/23/events","html_url":"https://github.com/libp2p/go-libp2p-core/issues/23","id":459854864,"node_id":"MDU6SXNzdWU0NTk4NTQ4NjQ=","number":23,"title":"Adding metods to an interface is a breaking change.","user":{"login":"Kubuxu","id":2259282,"node_id":"MDQ6VXNlcjIyNTkyODI=","avatar_url":"https://avatars3.githubusercontent.com/u/2259282?v=4","gravatar_id":"","url":"https://api.github.com/users/Kubuxu","html_url":"https://github.com/Kubuxu","followers_url":"https://api.github.com/users/Kubuxu/followers","following_url":"https://api.github.com/users/Kubuxu/following{/other_user}","gists_url":"https://api.github.com/users/Kubuxu/gists{/gist_id}","starred_url":"https://api.github.com/users/Kubuxu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Kubuxu/subscriptions","organizations_url":"https://api.github.com/users/Kubuxu/orgs","repos_url":"https://api.github.com/users/Kubuxu/repos","events_url":"https://api.github.com/users/Kubuxu/events{/privacy}","received_events_url":"https://api.github.com/users/Kubuxu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2019-06-24T12:09:08Z","updated_at":"2019-06-24T12:09:08Z","closed_at":null,"author_association":"MEMBER","body":"By adding `EventBus()` method to Host interface and releasing 0.0.4 a lot of projects will stop to build after dependency update.\r\n\r\nI would suggest considering an act of adding a method to an interface a breaking change and:\r\n1. be careful about it (first update and release the implementation\r\n2. increase version number accordingly. As we are still in v0, this would mean incrementing minor version number."}}
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