[TYPO3-core] Second Meeting for TYPO3 6.2 LTS Release

[Ernesto Baschny]

Hi,

just as a final "short" summary of the discussion (thanks for all the
participants!) beneath:

- we won't simply "bring back" more already deleted old-API between 4.6
and 6.1 just for the sake of "keeping old extensions running".

- we are aware that the amount of old-API deletions between 4.6 and 6.2
is big, but we consider this a natural process (and documented by our
deprecation policy). The impact on "upgraders" who are not following
latest Core changes actively might be big, but we are working on making
the process at least predictable by providing documentation, checklists
and a "compatibility check" extension.

- we made an exception for t3lib_div::int_from_ver, simply bringing it
back in 6.1 and 6.2 (was deleted in 6.1) due to a "chicken-egg" problem
for extensions wanting to support TYPO3 CMS 4.5 .. 6.2.

Regards,
Ernesto

Helmut Hummel schrieb am 27.05.2013 09:24:
> On 25.05.13 20:16, Ernesto Baschny wrote:
>> Hi,
>>
>> read more about what's going on "behind the scenes" of the TYPO3 6.2
>> Release here:
>>
>> http://forge.typo3.org/news/643
> 
> One thing I want to calrify. Is it really the intention to re-introduce
> int_from_ver into GeneralUtility like so: https://review.typo3.org/21047 ?
> 
> I think this would cause even more confusion which API to use.
> "Old" extensions used t3lib_div::int_from_ver, then had to use
> t3lib_utility_VersionNumber::convertVersionNumberToInteger.
> 
> With 6.0 t3lib_utility_VersionNumber was aliased to
> \TYPO3\CMS\Core\Utility\VersionNumberUtility and t3lib_div to
> \TYPO3\CMS\Core\Utility\GeneralUtility
> 
> This means in 6.0 you could use:
> 
> t3lib_div::int_from_ver()
> GeneralUtility::int_from_ver()
> 
> t3lib_utility_VersionNumber::convertVersionNumberToInteger
> VersionNumberUtility::convertVersionNumberToInteger
> 
> All doing the same.
> 
> But I assume nobody used GeneralUtility::int_from_ver() as this would
> only work in 6.0 and writes deprecation messages, so it does not make
> sense to do so.
> 
> In 6.1
> 
> t3lib_div::int_from_ver()
> GeneralUtility::int_from_ver()
> 
> has been removed, breaking "old" extensions.
> 
> As much as I see the need to not break extensions during a migration
> from 4.5 to 6.2, I don't like to introduce
> GeneralUtility::int_from_ver() again, but instead an (optional)
> compatibility layer which provides this (and potentially other)
> method(s) to t3lib_div using inheritance instead of aliasing.
> 
> Find a rough prototype in my sandbox[1]
> 
> There is a chicken/egg problem however, as I would like to have the
> t3lib_div alias in place early in the boot process if the compatibility
> extension is not installed. At this stage, it is however not (yet)
> possible to know if the extension is installed or not.
> 
> Nevertheless I think it is worth solving this problem instead of
> bringing back in_from_ver() to GeneralUtility as by that we virtually
> never can get rid of it.
> 
> Kind regards,
> Helmut
> 
> [1]git cherry-pick origin/sandbox/helhum/t3lib_div-compatibility
> 


-- 
Ernesto Baschny
TYPO3 CMS Core Developer
Release Manager TYPO3 4.5 & 6.2 LTS

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