The directive name is now automatically printed in <default> and <syntax>. Specifying <default> is made non-optional. Visible changes: - "types" and "proxy_set_header" get proper defaults (not yet displayed nicely); - "fastcgi_hide_header", "fastcgi_ignore_headers", "fastcgi_pass_header", "proxy_hide_header", "proxy_ignore_headers", and "proxy_pass_header" now have their (empty) defaults documented; - mentions of "fastcgi_redirect_errors" and "proxy_redirect_errors" which are long unsupported were removed.