I am an EU Blue card holder working in Germany for 3 years now. I have passed the B1 German language exam and the Leben in Deutschland exam. I am transferring employers currently. Can I apply for Permanent Residence once I start with my next employer, even though I would still be on probationary status by then?
This is very different from this question: Is the 21 month period calculated from the Blue card application date or the issue date for Niederlassungserlaubnis?
which was suggested as a possible answer below.