Release Notes: The STARTTLS in SMTP mode is now working. In HTTPS mode, some requests fail with a "bad write retry" error. The "If-Range" request header line is now supported. uname(2) is now used on Linux systems instead of procfs.
Release Notes: The mail proxy was split into three modules: POP3, IMAP, and SMTP. Some minor bugs were fixed. nginx can now start on Solaris if the shared PCRE library is located in a non-standard place. A worker process that may have gotten caught in an endless loop if the memcached was used was fixed.
Release Notes: If all upstream servers have failed, then all servers were given equal weight until servers became alive. This bug appeared in 0.6.6.
Release Notes: Sun Studio compatibility on Solaris/AMD64 and Solaris/SPARC64 was established. A problem where garbage was passed in the header to a client if the FastCGI header was split in records was fixed.
Release Notes: If a remote SSI subrequest was used, then a posterior local file subrequest might transferred to the client in the wrong order. Large SSI inclusions buffered in temporary files were truncated. These issues were fixed.