Breadcrumbs

Updates and Bug Fixes

USB Compliance Suite v8.33 build 1243 (January 20, 2026)

Requires USB Protocol Suite v10.12 or later

Test updates and improvements

  • USBCOMP-23466: [DPAM] Implement v2.1a CTS (draft October_31_2025)

  • USBCOMP-21789: [DPAM VIF] Allow a user to add DPAM fields when SVID=FF01 is absent

  • USBCOMP-23562: [DPAM VIF] Implement r0.6 draft4 spec

  • USBCOMP-23585: [Documentation] Update Load Power tech brief

  • USBCOMP-23508: [TEST.PD.PROT.SRC.8#7] PD2 mode Hard Reset sent; improve the error message

  • USBCOMP-23546: [TEST.PD.PS.SRC.5#3] Improve error message

  • USBCOMP-23565: [TEST.PD.PROT.SRC3.14#1] Improve failure reporting for PORT_MANAGED_GUARANTEED_TYPE

  • USBCOMP-23571: [TEST.PD.PS.SRC.2] Improvements to verification script and exerciser timeout

Bug fixes

  • USBCOMP-23436: [TD 4.12.2] False failure for numUFP

  • USBCOMP-23554: [TD 4.9.3 V.2] USB2 condition not flagged after PR swap (false pass)

  • USBCOMP-23563: [TD 4.7.6 V.4] PUT transitions to Attached.SRC and sources Vbus correctly

  • USBCOMP-23574: [TD 4.9.2] Corrected test behavior

  • USBCOMP-23576: [TD 4.12.2] Test abort fixed so subsequent test cases continue executing

  • USBCOMP-23582: [TD 4.2.2 V.1] Corrected behavior before Unattached.Accessory

  • USBCOMP-23605: [TD 4.6.2 V.7] Applicability evaluation fixes

  • USBCOMP-23606: [TD 4.1.2 V.3, V.5, V.7] Corrected vOpen range handling

  • USBCOMP-23430: [PD] Clarified spec term interpretation for “a change of PDO”

  • USBCOMP-23489: [COMMON.CHECK.PD.5] Should be skipped for TEST.PD.EPR.SNK3.12#6

  • USBCOMP-23499: [COMMON.CHECK.PD.7#8] Limited current not applicable when UUT is SNK in TEST.PD.PROT.SNK.2

  • USBCOMP-23507: [TEST.PD.USB4.DRST.5] Vconn On timing fixes

  • USBCOMP-23530: [COMMON.CHECK.PD.4#1] AMS check exception not enabled in TEST.PD.PS.SNK.3

  • USBCOMP-23543: [TEST.PD.PS.SNK.1#11] Power/current margin handling fixes

  • USBCOMP-23544: [TEST.PD.EPR.SNK3.12#7] Corrected unexpected cycle after Hard Reset from UUT

  • USBCOMP-23547: [TEST.PD.FRS.SNK3.1] HiV - Tester sends wrong Source Cap

  • USBCOMP-23548: [COMMON.CHECK.PD.5] Corrected behavior on TEST.PD.USB4.EUSB.4

  • USBCOMP-23549: [TEST.PD.FRS.SNK3.1] False failure for not sending Get Sink Caps

  • USBCOMP-23550: [COMMON.CHECK.PD.7#1] False failure in TEST.PD.PROT.SRC.4

  • USBCOMP-23556: [TEST.PD.PS.SRC.1#3] vAVSNew miscalculation for PDO4_Mid/Max

  • USBCOMP-23561: [TEST.PD.FRS.SNK3.1#4, #5, #6, #7] Robustness fixes across steps #4–#7

  • USBCOMP-23564: [TEST.PD.PS.SRC.2#5] Corrected voltage-rise validation to valid voltage range

  • USBCOMP-23572: [TEST.PD.FRS.SNK3.1] EPR entry failure handling when cable is absent

  • USBCOMP-23577: [TEST.PD.PROT.ALL.1#12] Soft Reset sent by UUT (Rev2Snk/Rev3ChkdSnk)

  • USBCOMP-23578: [TEST.PD.PROT.SNK.13#2, #3, #6] Fixed failures during COMMON.PROC.BU.8

  • USBCOMP-23588: [TEST.PD.PS.SNK.1#6] Corrected test behavior

  • USBCOMP-23589: [TEST.PD.PS.SRC.2#5, #6] Corrected test behavior

  • USBCOMP-23391: [TD.DP.10.6.2] DP Connector Attached to DP Source Invalid FAIL - VSE error

  • USBCOMP-23491: [TD.DP.10.6.2] Updated test steps require the UUT to send Discover ID after DR_Swap

  • USBCOMP-23494: [TD.DP.10.3.7] 2nd iteration not run for DFP

  • USBCOMP-23496: [TD.DP.10.2.6] UUT is reporting SRC/SNK capable

  • USBCOMP-23497: [TD.DP.10.7.1] Applicability error - test should run on DP to USB-C Adapter

  • USBCOMP-23541: [TD.DP.10.7.2] Applicability corrections - DP Source/Sink requirement