Sage 8.1 has notebook 4.4.1, while Sage 8.2.beta0 up to Sage 8.2.beta1 have notebook 5.2.1.
$ ls /path/to/sage-8.1/upstream | grep notebook notebook-4.4.1.tar.gz $ ls /path/to/sage-8.beta0/upstream | grep notebook notebook-5.2.1.tar.gz $ ls /path/to/sage-8.beta2/upstream | grep notebook notebook-5.2.1.tar.gz -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.