# If-Modified-Since proxy cache optimization

**URL:** <https://www.ruby-forum.com/t/if-modified-since-proxy-cache-optimization/228075>\
**Category:** NGINX\
**Created:** [April 8, 2013, 7:38pm UTC](https://www.ruby-forum.com/t/if-modified-since-proxy-cache-optimization/228075 "2013-04-08T19:38:28Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![princenamor](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c0e974/32.png) [@princenamor](https://www.ruby-forum.com/u/princenamor)\
**Post date:** [April 8, 2013, 7:38pm UTC](https://www.ruby-forum.com/t/if-modified-since-proxy-cache-optimization/228075/1 "2013-04-08T19:38:28Z")

</div>

I noticed there was a patch submitted couple years ago that was never  
accepted and last year a post saying to expect it around Jan 2013. I  
understand SPDY probably pushed the roadmap back a bit. So I was  
wondering  
if there is a new estimate for when to expect this 1.3.x roadmap item to  
be  
completed?

Thanks,

John

---

<div class="post-metadata">

**Author:** ![princenamor](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/c0e974/32.png) [@princenamor](https://www.ruby-forum.com/u/princenamor)\
**Post date:** [April 8, 2013, 8:48pm UTC](https://www.ruby-forum.com/t/if-modified-since-proxy-cache-optimization/228075/2 "2013-04-08T20:48:36Z")

</div>

Hello!

On Mon, Apr 08, 2013 at 10:37:59AM -0700, John W. wrote:

> I noticed there was a patch submitted couple years ago that was never  
> accepted and last year a post saying to expect it around Jan 2013. I  
> understand SPDY probably pushed the roadmap back a bit. So I was wondering  
> if there is a new estimate for when to expect this 1.3.x roadmap item to be  
> completed?

As 1.4.0 is expected to appear soon and we are more less in  
feature freeze for 1.3.x already, the said functionality will be  
reconsidered for 1.5.x. Optimistic forecast is something near  
May.

–  
Maxim D.

> **[nginx: donation](http://nginx.org/en/donation.html)**