September Retrofit Release One

Last Updated: September 21, 2026 8:40:05 AM PDT

This page outlines key changes specific to TSS-driven retrofits going live in early September 2026.

There are several releases planned for September that will make Fall 2026 (FA26) data from TSS available. This first release includes the following reports:

Campus Class List Statistics

Visit the Current and Future Report Development page to see when this and other retrofit releases will be available.

Campus Class List Statistics

The table below describes the September update changes, limitations and reminders where the data may be different in ISIS vs TSS.

This table lists the fields with new codes/values or other changes.
Field	Comments
SIS Data Source	New Field! Indicates if this data comes from ISIS or TSS. Terms prior to FA26 come from ISIS. Terms starting FA26 or later come from TSS.
Class Section Status	The Class Section Status has replaced Class Section Status Code in the report. This change applies both to the filter prompt as well the available Report Fields.
Course Number	The Course Number has been reformatted to align with Course Numbers in TSS. Example: MATH-020C
Event Package Component	New Filter! Impact by SIS Data Source: ISIS - no impact. You can just ignore this box. TSS - Unlike ISIS, in TSS the student enrolls in all components of a course (the whole Event Package). This filter will let you switch between the primary component (click here to learn more about course components) versus viewing all components. If you want only one row of data per student per course, such as to see how many students have booked courses in your department, use the "Primary Component Only" setting.
Course Level	The Course Level has replaced Course Level Code in the report. Instead of seeing "LD" or "0010" you will see "Lower Division". This change applies both to the filter prompt as well the available Report Fields.
Primary Instructor Full Name	Unintended Filter Warning: If you filter on only one spelling option, you may accidentally be filtering out your data. When using the recommended/default SIS Data Source, please select all relevant options. The source for Primary Instructor Full Name is different depending on the SIS Data Source. ISIS: the data comes from ISIS TSS: the data comes from UC Path
Instruction Type	Unintended Filter Warning: If you filter on only spelling option, you may accidentally be filtering out your data. When using the recommended/default SIS Data Source, please select all relevant options. For example, as of August 2026, "Field Work", "Internship" and "Study Abroad" are ISIS only.
College	Unintended Filter Warning: If you filter on only one spelling option, you may accidentally be filtering out your data. When using the recommended/default SIS Data Source, please select all relevant options.
Student Classification	Student Classification and Student Classification Code (also known as class level) are still being worked on by the TSS team. Once available in the source system, these should appear in the report the following business day.