Dear Knot Resolver users, last week a long-lasting bug in our mailing system has been discovered, which, over the past two years, blocked quite a few e-mails from being delivered to the list <knot-resolver-users(a)lists.nic.cz> and a few others (namely the <knot-dns-users(a)lists.nic.cz>cz>, whose subscriber Juha Suhonen initially brought our attention to the issue - a thank you to Juha is in order!). This week the issue has been resolved and the blocked e-mails came through. Some of these were our own, namely the Knot Resolver 5.5.0 release announcement, which is obviously outdated, as the current stable version is Knot Resolver 5.7.0. We apologize for any confusion this situation may have caused. Some others are still awaiting additional approval, so after we manually identify, which are still relevant, and which are spam, they will also come through during the following weeks. Furthermore, later today we are planning to release new versions of the stable Knot Resolver 5 and the early-access Knot Resolver 6. These important updates will mitigate a few newfound DoS issues, the details of which will soon be revealed globally. We are fully aware that this unfortunate timing may cause further confusion, so we opted to inform you, the subscribers, beforehand, that this next release e-mail is indeed relevant. We once again apologize for the confusion. Best regards Oto Šťáva Knot Resolver team CZ.NIC z.s.p.o.