Cal Poly SLO uses 9-11th grades in their GPA calculation. All the rest of the UC’s and CSU’s use only 10-11th grades from the a-g course requirements for their GPA calculation. As stated by @sophie9999, some UC’s will send out supplementals for borderline applicants, special case/noted disability mentioned in an essay etc… Mid-year Senior grades could be requested at this time, but for most applicants Senior grades will not have an impact on your admission chances, only to maintain your provisional admission if accepted. Most privates will ask for a Mid-year transcript.