Dear BIRD users, we are releasing BIRD versions 3.1.5 and 2.17.3. In 2.17.3, we have fixed a bug in RAdv prefix deprecation and a crash in BMP. In 3.1.5, we have fixed the same bug in RAdv, several crashes in MRT, some filter misbehavior, a reconfiguration crash in Babel, OSPF and RIP, included a thread group configuration and a fix for a very stupid bug causing the BSD kernel export to reject everything. Big thanks to all of you who helped us find and fix these issues! Packages are available on our website <https://bird.nic.cz/get-bird>. Debian and Ubuntu packages are available in our repository at <https://pkg.labs.nic.cz/doc?project=bird>. We are working on upstream RPM repositories as well. Happy routing! Maria and the BIRD Team -- Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.