History
Passolo saves all changes made to a translation string, i.e., all changes made manually by a translator or via an automatic string list operation.
In doing so, it does not save every single change, but instead collects all of the changes made to a string until the file is saved.
These changes are listed in the History tab of the translation string's properties.
You can also restore previous data, and can choose between reverting individual strings or an entire project to a previous state.