[xenomachina]

In the 90s, pretty much everywhere I worked used a locking source control system, where you'd have to lock a file before you could edit it. This meant no merge conflicts, but it did mean that you had to work quickly if you wanted to make changes to a file that was frequently edited.

[sam_lowry_]

ClearCase had elaborate rules to define ownership and permissions. I guess this feature creep was imposed by marketing the product to lawyers and paralegal first.

Ever ClearCase install I know of is an awful legacy system superseded in practice by git, even in environments that work on the need-to-know basis.

Lawyers and paralegal just ditched version control altogether, surviving on Office365 document sharing and distributed editing.