Installing a web server/Nginx web server/Read Nginx release Notes

Read nginx: http://nginx.org/en/CHANGES

Nginx
 * Nginx 1.17.4 Bug fix release                       24 Sep 2019
 * Nginx 1.16 23 Apr 2019 http://nginx.org/en/CHANGES-1.16
 * Nginx 1.15.10                                      26 Mar 2019
 * Feature: port ranges in the "listen" directive
 * Nginx 1.15.0                                   05 Jun 2018
 * Change: now nginx detects missing SSL certificates during configuration testing when using the "ssl" parameter of the "listen" directive
 * Nginx 1.14, 17 Apr 2018 (Default in Ubuntu 18.04)


 * Nginx 1.13.9, 20 Feb 2018
 * Feature: HTTP/2 server push support


 * Nginx 1.12, Apr 2017 http://nginx.org/en/CHANGES-1.12


 * Nginx 1.11.11,                                      21 Mar 2017
 * Feature: the "worker_shutdown_timeout" directive.


 * Nginx 1.3.13,                                      19 Feb 2013
 * Feature: support for proxying of WebSocket connections

Nginx Plus
 * Nginx Plus Release 6 14/04/2015