2016-01-15 17:29 GMT-02:00 Carlos Cesar Caballero Díaz <
desarro...@spicm.cfg.sld.cu>:

> Hi, I have written about my opinion before. The backward compatibility
> should never affect the system maintenance, sometimes is better just remove
> the old functionalities to make way for the new ones, the backward
> compatibility in the long term will become unsustainable.
>
> In my opinion, something like a 90% of compatibility and a good migration
> guide should be enough, there are alternatives as the yii framework
> migration from 1.x to 2.x, they in some way could run the two versions side
> by side (
> http://www.yiiframework.com/doc-2.0/guide-tutorial-yii-integration.html#using-both-yii2-yii1
> )
>
> I know that one of the main promises of web2py was the backward
> compatibility, but I am sure that developers (web2py users are developers)
> prefer a clean system with new useful features.
>

+1

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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