Write 1.0 changelog / release notes

[jku]

In preparation for release, start working on changelog

[lukpueh]

Some open questions: Do we need release notes in addition to the changelog? Should we just add a release note preamble to the 1.0.0 changelog entry? Is it enough if that just links to the existing 1.0.0 release announcement (coordinate with #1795)?

[jku]

Some open questions: Do we need release notes in addition to the changelog? Should we just add a release note preamble to the 1.0.0 changelog entry? Is it enough if that just links to the existing 1.0.0 release announcement (coordinate with #1795)?

Status and some thoughts:

• we'll have blog post(s) for announcement
• I don't think the changelog needs more but it would be nice to include a link to the announcement... but that seems like a tricky cyclical dependancy :)
• we can add the announcement link to the Github release page afterwards, and could even edit the changelog file afterwards
• We could even link to the announcement from README, at least for a time

Suggestion: let's leave it as is, and after we have the announcement up somewhere (after the release is made), add a link to the github release page and possibly the changelog file?

[lukpueh]

Shall we close this issue now, or with #1873?

[jku]

linked, thanks