[QGIS-Developer] plugins.qgis.org API: Get all available versions of a plugin?

[Sebastian M. Ernst]

Hi all,

yet another question on plugins: `plugins.qgis.org` has an API which
lists all available plugins for a specific version of QGIS. Query syntax:

https://plugins.qgis.org/plugins/plugins.xml?qgis=x.y.y

It appears that this API will always return information on *the latest*
release of a plugin that is compatible with a specific version of QGIS.
It does not list (older) releases of plugins that may also be
compatible. The web app technically has the capability, though only in
HTML (targeting human users). E.g. the "versions" tab on
https://plugins.qgis.org/plugins/QuickOSM/ will show all releases of
QuickOSM - while multiple of those should be compatible with e.g. QGIS
3.10.0.

Is there an XML (or similar kind of API) end point that would allow me
to fetch a list of available releases of an individual plugin? Either
for one version of QGIS or for all (so I can filter it myself locally)?

Thanks,
Sebastian