[TYPO3-dev] [Typo3-Dev] indiscriminate of i18n and languages in typo3.

[Ingmar Schlecht]

Hi Dennis,

Dennis Cheung wrote:
> How will 4.0 backwards compatible to 3.8?

Yes, the aim is to make 4.0 completely backwards compatible to 3.8.

> I mean, who will not able to upgrade?

Everyone will hopefully be able to upgrade without any problems as long 
as they don't use extensions that extend the core in a "dirty" way such 
as using XCLASSes.

> I know typo3 since 3.8. 
> But I see there are still have many
> incompatible to 3.5 version. (e.g. user auth service).

The auth services just didn't exist in 3.5, so they are a feature added 
in a later version of TYPO3. But that doesn't mean 3.8 wasn't backwards 
compatible to 3.5.

> It may be not
> done in 4.0 release, but not late as 5.0.

According to the roadmap, 5.0 is the first release in which backwards 
compatibility is officially announced to be broken where it makes sense. 
So obviously it's the version of choice for changes like the one you 
propose.

cheers,
Ingmar