Hi, I am new to this forum, but not new to nginx. I am running multiple debian servers (stretch) with nginx 1.14.1 and TLS 1.3 support, i.e. nginx version: nginx/1.14.1 built with OpenSSL 1.1.0f 25 May 2017 (running with OpenSSL 1.1.1c 28 May 2019) TLS SNI support enabled To prevent the servers agains the new bugs, I tried to upgrade directly to 1.17.3 provided by nginx.org. That workby TC_Hessen - Nginx Mailing List - English