Winner !! You are correct. And furthermore, this happens EVERY YEAR. The school districts are required by law to post these advance notices. And then the following school year. Almost EVERY teacher is hired back. This is standard operating procedure as usual for California. Same 'ol, same 'ol. And after this proposed tax increases fail at the ballot box this year , a FEW teachers will be laid off, while class sizes stay about the same, because so many students are leaving California with their out of work, overtaxed parents. And so many more will become home schooled.
This allows these teachers to collect unemployment during the summer.