Nginx 1.23.3 Release Overview and Key Changes
Nginx 1.23.3, the lightweight web and reverse‑proxy server developed by Igor Sysoev, introduces several bug fixes and a hostname‑resolution workaround while continuing to offer low‑memory, high‑concurrency performance across multiple operating systems.
Nginx (pronounced "engine x") is a lightweight web server, reverse‑proxy server, and mail (IMAP/POP3) proxy released under a BSD‑like license, capable of running on UNIX, GNU/Linux, BSD, macOS, Solaris, and Microsoft Windows.
Developed by Russian programmer Igor Sysoev originally for the large Russian portal and search engine Rambler, Nginx is distinguished by its low memory footprint and strong concurrency, effectively addressing the C10K problem.
The mainline version 1.23.3 has been released.
Key changes in this release include bug fixes for handling large TLVs in PROXY protocol version 2 headers, a segmentation‑fault issue when SSI processes sub‑requests created by other modules, a CPU‑usage problem when using SSL connections to back‑ends, and a workaround that ignores duplicate addresses resolved from a hostname in the listen directive.
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