Hello, I believe I'm facing the same issue after my yesterday's update, with method http.
[20:51] <nicodache@tcherepnin> ~ $ sudo apt-get update Réception de:1 http://ftp.belnet.be/debian sid InRelease [235 kB] Lecture des listes de paquets... Fait E: Method http has died unexpectedly! E: Le sous-processus http a reçu le signal 31 [20:51] <nicodache@tcherepnin> ~ $ apt --version apt 1.6~alpha1 (amd64) Do you confirm the cause appears similar ? I managed to update my Sid after modifying my source.list to point towards ftp://. It all went fine, but when reversing to http (for https://www.debian.org/News/2017/20170425), error is still present. FWIW, I've had the same error with method https (which I use for non-free Opera web browser). Thanks -- N