Release v1.9.0 on 2023-09-12.

1. bf95f0f ns2: refactor ns2_prim_status_ind() by Alexander Couzens · 3 years, 9 months ago
2. ffd49d0 ns2: ns2_recv_vc: remove unused parameter nsi by Alexander Couzens · 3 years, 9 months ago
3. 38b19e8 ns2: refactor nsvc_by_ functions by Alexander Couzens · 3 years, 9 months ago
4. 92ad029 ns2: Use NULL and not '0' when returning a NULL-Pointer by Harald Welte · 3 years, 9 months ago
5. 5bef2cc ns2: Improve/extend doxygen comments for new ns2 implementation by Harald Welte · 3 years, 9 months ago
6. 48f6386 libgb/ns: allow to create NS_ALIVE NSVC by Alexander Couzens · 3 years, 10 months ago
7. 6a16149 Gb: add a second NS implementation by Alexander Couzens · 4 years ago