Notmuch libnotmuch.so

In release 7.7 it appears that notmuch is bundled with
libnotmuch.so.1.2. It also appears that in -current notmuch 39 is also
bundled with libnotmuch.so.1.2.

I believe the current version is 5.6.

Do you know if it will be updated in 7.8-release?

Thanks.

Jon