After upgrading from 7LTS to 8LTS and running TCA Migrations Check for my extensions the result list shows the following:
Comment:
The 4th parameter 'specConf' of the field 'showitem' with fieldName = 'sys_language_uid' has been migrated, from TCA table "tx_myextension_domain_model_accounts['types']['1']['showitem']"to "tx_myextension_domain_model_accounts['types']['1']['columnsOverrides']['sys_language_uid']['defaultExtras']".
In TCA I think this is the spot:
'types' => array(
'1' => array('showitem' => 'sys_language_uid;;;;1-1-1, l10n_parent, l10n_diffsource, hidden;;1, --div--;LLL:EXT:cms/locallang_ttc.xlf:tabs.access, starttime, endtime'),
),
What changes do I need to do to get rid of comment?
I think this is the relevant part: https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/7.3/Deprecation-67229-TcaChanges.html
And this comment as well?:
Migrated 'showitem' field from TCA table tx_accountmanager_domain_model_accounts['types']['1']" : Moved additional palette with name "tx_myextension_domain_model_accounts['types']['1']['1']" as 3rd argument of field "tx_myextension_domain_model_accounts['types']['1']['hidden']"to an own palette. The result of this part is: "hidden, --palette--;;1"