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Server environment report


Senior Management
Staff member
Changes with nginx 1.19.0
  • Feature: client certificate validation with OCSP.
  • Bugfix: "upstream sent frame for closed stream" errors might occur when working with gRPC backends.
  • Bugfix: OCSP stapling might not work if the "resolver" directive was not specified.
  • Bugfix: connections with incorrect HTTP/2 preface were not logged.


Senior Management
Staff member
Changes with nginx 1.19.3

  • Feature: the ngx_stream_set_module.
  • Feature: the "proxy_cookie_flags" directive.
  • Feature: the "userid_flags" directive.
  • Bugfix: the "stale-if-error" cache control extension was erroneously applied if backend returned a response with status code 500, 502, 503, 504, 403, 404, or 429.
  • Bugfix: "[crit] cache file ... has too long header" messages might appear in logs if caching was used and the backend returned responses with the "Vary" header line.
  • Workaround: "[crit] SSL_write() failed" messages might appear in logs when using OpenSSL 1.1.1.
  • Bugfix: "SSL_shutdown() failed (SSL: ... bad write retry)" messages might appear in logs; the bug had appeared in 1.19.2.
  • Bugfix: a segmentation fault might occur in a worker process when using HTTP/2 if errors with code 400 were redirected to a proxied location using the "error_page" directive.
  • Bugfix: socket leak when using HTTP/2 and subrequests in the njsmodule.

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