TYPO3 Core

Hi there,

I just updated an page working on 6.2.9 to 6.2.10. Now I got a lot of error messages, both in frontend and backend.
So far I got errors from tx_solr and jfmulticolumn sounding like:

#1: PHP Catchable Fatal Error: Argument 1 passed to Tx_Solr_Template::__construct() must be an instance of tslib_cObj, instance of TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer given, called in /home/me/projects/test.local/typo3_src/typo3/sysext/core/Classes/Utility/GeneralUtility.php on line 4448 and defined in /home/me/projects/test.local/typo3conf/ext/solr/Classes/Template.php line 61

#1: PHP Catchable Fatal Error: Argument 4 passed to Tx_Solr_GarbageCollector::processDatamap_preProcessFieldArray() must be an instance of t3lib_TCEmain, instance of TYPO3\CMS\Core\DataHandling\DataHandler given, called in /home/me/projects/test.local/typo3_src/typo3/sysext/core/Classes/DataHandling/DataHandler.php on line 949 and defined in /home/me/projects/test.local/typo3conf/ext/solr/Classes/GarbageCollector.php line 9

#1: PHP Catchable Fatal Error: Argument 4 passed to tx_jfmulticontent_tcemain::processDatamap_preProcessFieldArray() must be an instance of t3lib_TCEmain, instance of TYPO3\CMS\Core\DataHandling\DataHandler given, called in /home/me/projects/test.local/typo3_src/typo3/sysext/core/Classes/DataHandling/DataHandler.php on line 949 and defined in /home/me/projects/test.local/typo3conf/ext/jfmulticontent/lib/class.tx_jfmulticontent_tcemain.php line 48