rakudo permanent tracker and transition

["M. Zhou" <lumin@debian.org>]

Hi release team,

Some time ago the rakudo tracker is set up
https://release.debian.org/transitions/html/rakudo.html

At that time packages like raku-tap-harness depends on
 raku-api-2021.09 , which is provided by rakudo 2021.09

Now that rakudo 2021.12 has landed onto unstable, and
the API has been bumped to raku-api-2021.12 . But it
did not trigger an automatic rebuild for packages
depending on raku-api-2021.09 .

I don't know how the transition tracker works. Could
you please provide some advice on the transition?