Release and system maintenance schedule

This table lists dates and times ONESOURCE Trust Tax and Trust Tax Insight will be unavailable in 2026 due to a scheduled event, such as a release or system maintenance.
All times listed are Central Time (CT).
Release and system maintenance schedule
Date
Scheduled event
Product unavailable beginning at
Product available again by
February 18-19 (Wed-Thurs)
26.01 Release
10 PM February 18
2 AM February 19
March 21-22 (Sat-Sun)
System Maintenance
8 PM March 21
10 AM March 22
April 22-23 (Wed-Thurs)
26.02 Release
8PM April 22
12 AM April 23
May 23-24 (Sat-Sun)
System Maintenance
8 PM May 23
10 AM May 24
June 24-25 (Wed-Thurs)
26.03 Release
8 PM June 24
12 AM June 25
June 27-28 (Sat-Sun)
System Maintenance
8 PM June 27
10 AM June 28
July 25-26 (Sat-Sun)
System Maintenance
8 PM July 25
10 AM July 26
August 22-23 (Sat-Sun)
System Maintenance
8 PM August 22
10 AM August 23
August 26-27 (Wed-Thurs)
26.04 Release
8 PM August 26
12 AM August 27
October 24-25 (Sat-Sun)
System Maintenance
8 PM October 24
10 AM October 25
November 11-12 (Wed-Thurs)
26.06 Release
8 PM November 11
12 AM November 12
November 21-22 (Sat-Sun)
System Maintenance
8 PM November 21
10 AM November 22
December 26-27 (Sat-Sun)
System Maintenance
8 PM December 26
10 AM December 27
December 30-31 (Wed-Thurs)
27.00 Release
8 PM December 30
12 AM December 31

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