# Tengine-1.5.1 is released

**URL:** <https://www.ruby-forum.com/t/tengine-1-5-1-is-released/236367>\
**Category:** NGINX\
**Created:** [August 29, 2013, 5:03pm UTC](https://www.ruby-forum.com/t/tengine-1-5-1-is-released/236367 "2013-08-29T17:03:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [August 29, 2013, 5:03pm UTC](https://www.ruby-forum.com/t/tengine-1-5-1-is-released/236367/1 "2013-08-29T17:03:37Z")

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Hi folks,

We are pleased to announce that Tengine-1.5.1 (stable version) has  
been released!  
You can either checkout the source code from GitHub:  
[GitHub - alibaba/tengine: A distribution of Nginx with some advanced features](https://github.com/alibaba/tengine) or download the tar ball directly:  
[http://tengine.taobao.org/download/tengine-1.5.1.tar.gz](http://tengine.taobao.org/download/tengine-1.5.1.tar.gz)

This release fixes the bugs we found of the Tengine-1.5 branch.

We are now shifting to the development of Tengine-2.0, in which we  
will introduce  
more advanced features, performance improvements, and security  
enhancements.  
Stay tuned 🙂

The full change log follows below:

```
 *) Feature: added the directive 'retry_cached_connection' which 

```

could  
disable unconditional retries with a cached backend connection.  
(yaoweibin)

```
*) Feature: added the argument of 'ncpu' to 'sysguard_load' 

```

directive.  
(yzprofile)

```
*) Bugfix: fixed a bug in referer module that regex rules might be
   invalid with https requests. (lilbedwin)

*) Bugfix: fixed a bug that the trim module might send a zero-size
   buffer. (taoyuanyuan)

*) Bugfix: fixed a compile error when using the configure option
   '--without-dso'. (zhuzhaoyuan)

*) Bugfix: fixed two compile warnings. (zzjin, diwayou)

```

For those who don’t know Tengine, it is a free and open source  
distribution of Nginx with some advanced features. See our website for  
more details: [http://tengine.taobao.org](http://tengine.taobao.org)

Have fun!

Regards,

–  
Weibin Y.  
Developer @ Server Platform Team of Taobao