>From ChangeLog:
Some bugs have been fixed.
o use trio library if system's printf is broken with %lld.
o fixed single quote escaping in several places.
o fixed coredump if service is unknown.
o fixed keep-alive for http/1.1.
o fixed uploading in ssl enabled ftp when data connection is protected.
o don't send AUTH TLS to ftp proxy.
o fixed fish protocol module.
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