Hi, 

With Marcus I'm debugging Telepharo to Pharo 9 and there are some methods deprecated. 

For example:

https://github.com/oliveiraallex/TostSerializer/commit/5e0554438c8ebd9fb38c8a83d57fe9e117def58b

https://github.com/oliveiraallex/TelePharo/commit/5ba2a1040eae7f340e2d610ce8e64b45c52f1788

What's the better way? Create now a Telepharo branch of pharo7 (like the branch pharo6) and continue working in it applying these commits to work in pharo8/9 in the master branch? 

Allex Oliveira