# Tengine-1.2.5

**URL:** <https://www.ruby-forum.com/t/tengine-1-2-5/219661>\
**Category:** NGINX\
**Created:** [May 10, 2012, 4:24pm UTC](https://www.ruby-forum.com/t/tengine-1-2-5/219661 "2012-05-10T16:24:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\
**Post date:** [May 10, 2012, 4:24pm UTC](https://www.ruby-forum.com/t/tengine-1-2-5/219661/1 "2012-05-10T16:24:57Z")

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Hi folks,

We’re glad to announce that Tengine-1.2.5 has been released. You can  
either  
download the tarball from taocode:  
[http://tengine.taobao.org/download/tengine-1.2.5.tar.gz](http://tengine.taobao.org/download/tengine-1.2.5.tar.gz) or check out the  
source from github: [GitHub - alibaba-archive/tengine: This project has been transfered to https://github.com/alibaba/tengine](https://github.com/taobao/tengine)

The highlight of this release is the new ‘upstream\_check’ module which  
can  
be used to perform proactive health checks of backend servers. It’s  
quite  
useful when you use Tengine as a load balancer (reverse proxy). Other  
changes include:

- Feature: now allow to specify program identifiers with syslogs.
- Change: merged changes between nginx-1.0.14 and nginx-1.0.15.
- Change: the default value of ‘accept\_mutex\_delay’ was changed from  
500ms  
to 100ms to gain better performance.
- Bugfix: fixed a segmentation fault bug in syslog when failed to  
connect  
to an upstream server.
- Bugfix: fixed the bug of ‘access\_log’ might not be compatible with the  
‘buffer’ parameter.

See our website for more details: [http://tengine.taobao.org](http://tengine.taobao.org)  
Have fun!

Regards,