Changes in version 2.0.10:
* Change: compatibility with nginx API 0.8.11;
* Fixed bug: Prevent module from registering store path if no upload
location was configured;
* Fixed bug: upload corruption in case of short body + keepalive.
Thanks to Dmitry Dedukhin;
* Change: Return error 415 instead of 400 if request content type is
not multipart/form-data.

Please note, that 2.1.x is a development branch. To continue using the
most stable version of upload module please stay with 2.0.x branch until
further notice.

Also please note that it is now possible to route requests of types
other that multipart/form-data to something which understands it. Example:

location = /upload {
upload_pass @blah;

[...]

error_page 415 = @non_multipart_formdata;
}

location @non_multipart_formdata {
fastcgi_pass ...;
}


Please see this page for details:
http://www.grid.net.ru/nginx/upload.en.html

--
Best regards,
Valery Kholodkov