September Retrofit Release Two

Last Updated: September 18, 2026 1:16:12 AM PDT

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

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

Campus Class List Census
Campus Class List Statistics Census
Campus Student Information Census

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

Campus Class List Census

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. In the future we hope to expand these options to enable viewing terms prior to FA26 directly from TSS.
Student Count	New Field!! Distinct count of TSS Student Numbers associated with the other information on the row. This was added along with Class Offering ID to replace of Section Letter Enrollment Count. This should improve report performance.
Course Subject Code and Number	New Filter! These are formatted to align with TSS. Please use the new format for both ISIS-terms and TSS-terms. 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.
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.
Class Section Status	The Class Section Status has replaced Class Section Status Code in the report.
Course Number	The Course Number has been reformatted to align with Course Numbers in TSS. Example: MATH-020C
Class Offering ID	New Field!! This was added along with Student Count to replace of Section Letter Enrollment Count. This should improve report performance.
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
TSS Student Number Legacy Student PID	These fields have replace the Student PID. Note that most FA26 admits will not have a Legacy Student PID.
Student Major Department Code Student Major Code and/or Title UG Minor Code and/or Title	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. Major and Minor codes have changed. In some cases, the Department Code has changed as well.

Campus Class List Statistics Census

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. In the future we hope to expand these options to enable viewing terms prior to FA26 directly from TSS.
Class Section Status	Unintended Filter Warning: If you filter on only option, you may accidentally be filtering out your data. When using the recommended/default SIS Data Source, please select all relevant options.
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. 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. Example: ISIS: School of Medicine TSS: Medical
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.
Class Section Status	The Class Section Status has replaced Class Section Status Code in the report.
Course Number	The Course Number has been reformatted to align with Course Numbers in TSS. Example: MATH-020C
College	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. Example: Thurgood Marshall College ISIS: "THURGOOD MARSHALL (FRMLY THIRD)" TSS: "THURGOOD MARSHALL COLLEGE"

Campus Student Information Census

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.
Student Count	New Field!! Distinct count of TSS Student Numbers associated with the other information on the row.
TSS Student Number Legacy Student PID	These fields have replace the Student PID. Note that most FA26 admits will not have a Legacy Student PID.
Student Classification Code and/or Title	Student Classification, is also known as class level. As of mid-September 2026, this is available for most students. However work is still being done to populate it for the remaining students.
Registration Status	As of mid-September 2026, this is available in the report as follows. ISIS - The Registration Status for the term according to ISIS. (no change) TSS: Enrolled if the student is booked in 1 or more units for the term. Not Enr-WLOnly or InitEnr&DrAll if the student was but is no longer booked in any units, or they have not booked any units but are on one or more waitlists. Cancelled if the student was but is no longer booked in any units and the sessional registration has been cancelled.
Student Major Department Code Student Major Code and/or Title Student Major Code Student Minor Code	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. Major and Minor codes have changed. In some cases, the Department Code has changed as well.