query builder updateBatch behavior on 4.6.x

I come from 4.1.9 (was stuck in PHP7.3 for a long time) and upgrade to 4.6.1 and i notice a change in updateBatch behavior :

PHP Code:

model('Foo')->builder()->updateBatch([
[
'id' => 2 ,
'content' => 'bar',
],
[
'id' => 3 ,
'content' => 'bim',
'plus' => 'tac',
],
],'id') ; 


that updateBatch with array structure differences worked in 4.1.9 and does not work in 4.6.x

Is that an expected behavior or is it a bug that will be fixed ?

thanks for your attention

Had the same problem a while back. It's apparently a feature.

Halberd | CodeIgniter Sandbox

@grimpirate thank you for reply