Type system updates: moving from research into development

While reading the paper, I noticed reference to two as-yet unpublished companion papers:

[8] Giuseppe Castagna. Typing records, maps, and structs. Unpublished manuscript
(conditionally accepted to ICFP 2023, the 28th ACM SIGPLAN International
Conference on Functional Programming), April 2023.

[9] Giuseppe Castagna and Guillaume Duboc. A gradual type system for core Elixir.
Unpublished manuscript, April 2023.

Any word on when drafts of these may be available?