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#6099 – Upgrade from version 3 to version 4

Posted in ‘Pre-sale questions’
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Thursday, 09 April 2015 17:48 UTC
I am a long time user of sh404SEF on my Joomla 2.5 website(s) and have found the product very useful. Yet, now I am in the process of upgrading my sites to Joomla 3.x.

My original subscription has long past expired. So I have no problem with a new subscription. But the real challenge may be updating from sh404SEF version to the newest version in preparation for my updating to Joomla 3.x.

So here is the question. Can I simply install the newest version of sh404SEF on top of my version while my sites are on Joomla 2.5.x? Or will an update to sh404SEF version 4.x ( require re-mapping all my URL aliases? I am guessing I am not the first asking this question :-)

If it is the latter, do you have any recommendations how I might port alias data (and other sh404SEF data) from to
Thursday, 09 April 2015 18:13 UTC

Nope, current version will run transparently. sh404SEF has always been backward compatible with itself, this is totally required as "Cool URIs don't change".
Problem occurs when Joomla! non-sef urls change across a major version upgrade,such as what happens between 1.5 and 1.6+ (aka 2.5). But that's not the case between J! 2.x and J3.x.

That said of course, you should do this with caution, on development sites where you can always reverse course.

Thursday, 09 April 2015 19:03 UTC
Excellent. That is what I was hoping to hear (and that is what I thought but needed to be sure my expectation was correct).

YES - testing is all done on an development server. Can't be too careful. Need to take this upgrade to Joomla 3.x very slowly and methodically - one component at a time. :)
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