[TYPO3] Typo3 upgrade from 3.6 to 4.1

[Nino Katic]

"Flint Stelter" <stelter at ddas.de> wrote in message 
news:mailman.1.1182862551.2225.typo3-english at lists.netfielders.de...
> Nino Katic wrote:
>> Hello,
>>
>> I think i have already ask this question in past and did not get usefull 
>> answer so let me try again. I have very old Typo3 installation (3.6.2) 
>> with many web sites and couple of extensions installed (like tt_news 
>> 1.0.2, aliaspro etc..). Is it possible to make upgrade of this to the 
>> newest ver. of Typo3? I already tried it in past and it didn't work well. 
>> So if someone has done it, please share your experience. Thx.
>>
>> Regards,
>>
>> Nino
>
> I *highly* recommend doing a backup first, of both the database and the 
> extensions, so you can fallback if necessary.
> then slowly work yourself up through the ascending version numbers.
> between every update check the site and every module if it´s still 
> working, some dependencies can be tricky.
>
> also it doesn´t hurt to do the same with extensions. Download older 
> versions from the repository, upgrade carefully and watch what happens.
> keep an eye on "exotic" extensions or any custom ones.
>
> I did something like this before, and I only encountered a huge problem 
> somewhere around 3.8, but I can´t tell you anymore what it was.
> Then I "forced" it up to the newest version and had to look in the error 
> logs to find out what went wrong. Only recommended in a testing 
> environment, though.

Thx Flint. I will replicate my 3.6.2 installation on test server and try to 
make an upgrade. All in all i have much work to do. Thx. one more time.

Nino