doctrine/phpcr-odm — comment on commit 00bbd91ed5372780cb756bbed60916dfe0736175
File:  line 0
By dbu:

the reason for the alias was that you can change the class name (i.e. the namespace) without having to change all of your content.

but i guess we can leave this out. you just need to write some phpcr code for migrations when you change class names. as you need to do when you add / rename / remove fields. what we should tackle someday is migrations, at least a guideline how to do them - having code to generate them is not that easy i fear.