Hi, awesome relay operators!
About two weeks ago, we put out 0.2.9.9, to fix a significant problem in our build process that led to an easy remote crash attack:
o Major bugfixes (security): - Downgrade the "-ftrapv" option from "always on" to "only on when --enable-expensive-hardening is provided." This hardening option, like others, can turn survivable bugs into crashes -- and having it on by default made a (relatively harmless) integer overflow bug into a denial-of-service bug. Fixes bug 21278 (TROVE-2017-001); bugfix on 0.2.9.1-alpha.
If you are on some earlier version of 0.2.9.x, it would be really great if you could update your relay some time soon: I want to put out a fix for the underlying bug here, but I'm hesitant to do so while there are still 700 crashable relays on the network.
Also if you are on 0.3.0.1-alpha, you should upgrade to 0.3.0.2-alpha or later, but there are only around 53 relays still on that version, so I'm freaking out less about that.
best wishes and many thanks,