I'm wondering if it's possible to add a new field in the deployment screen for Bamboo. For example, I would like to add a field called "Release Notes" that I can use as a bamboo variable and replace in a custom NuGet package.
There is no way that I know of in Bamboo, but one of the benefits of using Bamboo is its integration with the rest of the Atlasssian suite! Linking release notes in Confluence or tickets in Jira to a specific deployment/build or in Bamboo is easy and incredibly robust.