ATT_US what changed — iOS 26.0

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overrides_D49.plist Whole bundle

overrides_D49.plist changed 10 rows Before After

Key path	Before	After
cDerPriFileVersion	1.1.181	1.2.182
aIMSConfig.Signaling.AlwaysCheckRegistrationRefreshTimerAfterSystemClockChange	absent	true
aIMSConfig.Signaling.SpamCallCategoryMapping	absent	["telemarketing:Telemarketer,telemarketer,telemarketing","survey:Survey,survey","debt-collection:Account Services","political:Political Call,Political,political","not-for-profit:not-for-profit,Non-Profit,non-profit,Nonprofit","spam:spammer,Spam Risk,Spam,spam","fraud:Fraud"]
aIMSConfig.Signaling.SpamCallRiskLevels	absent	{"low":"1:20","high":"75:100","medium":"21:74"}
aIMSConfig.Signaling.SpamHeaderFeatureCapability	absent	Enabled
cIMSConfig.Signaling.UseT3402ForPdpBackoff	true	false
rIMSConfig.Voice.E911OverIMSSupported	true	absent
aIMSConfig.XCAP.DisableOnNetworkError	absent	false
aIMSConfig.XCAP.ForbiddenHttpErrorCodes	absent
rIMSConfigSecondaryOverlay.Voice.E911OverIMSSupported	false	absent

Key path

Before

After

cDerPriFileVersion

1.1.181

1.2.182

aIMSConfig.Signaling.AlwaysCheckRegistrationRefreshTimerAfterSystemClockChange

absent

true

aIMSConfig.Signaling.SpamCallCategoryMapping

absent

["telemarketing:Telemarketer,telemarketer,telemarketing","survey:Survey,survey","debt-collection:Account Services","political:Political Call,Political,political","not-for-profit:not-for-profit,Non-Profit,non-profit,Nonprofit","spam:spammer,Spam Risk,Spam,spam","fraud:Fraud"]

aIMSConfig.Signaling.SpamCallRiskLevels

absent

{"low":"1:20","high":"75:100","medium":"21:74"}

aIMSConfig.Signaling.SpamHeaderFeatureCapability

absent

Enabled

cIMSConfig.Signaling.UseT3402ForPdpBackoff

true

false

rIMSConfig.Voice.E911OverIMSSupported

true

absent