Changelog for releases 0.18.16 and following

[jonas-schulze]

As of today (2024-09-07), 0.18.20 is the most recent version. Unfortunately, though, Changelog.md refers to GitHub releases for anything newer than 0.7.0 but the latest GitHub release (or tag) is 0.18.15. Would it be possible to create the missing GitHub releases such that users can see which PRs went into which release? Thanks in advance.

[oxinabox]

The PRs in each release are shown now on the github releases page:
https://github.com/JuliaCollections/DataStructures.jl/releases

occationally tagbot screws up and puts them wrong.
In particular with things going into different branches.
But they look right to me.

We should perhaps delete changelog.md.
Its not been used since like before I started maintaining this package.

If you want to look into a tool that actually inspects git history to generate an accurate set of release notes referencing PRs that would be apprecated