message: CHANGELOG: add entry for SessionApi refactor
diff: @@ -8,6 +8,10 @@ If you encounter issues while upgrading to a newer version, don't hesitate to re
  > Collect changes for the next release below
  +### @backstage/core
  +
  +- Renamed `SessionStateApi` to `SessionApi` and `logout` to `signOut`. Custom implementations of the `SingInPage` app-component will need to rename their `logout` function. The different auth provider items for the `UserSettingsMenu` have been consolidated into a single `ProviderSettingsItem`, meaning you need to replace existing usages of `OAuthProviderSettings` and `OIDCProviderSettings`. [#2555](https://github.com/spotify/backstage/pull/2555).
  +
  ## v0.1.1-alpha.22
  ### @backstage/core
  