Engine and Engine Dispatch 23.44.453

Released 2026-07-27

Properly queues webhook notifications if Oauth2 authentication's "tokenUrl" request fails.
[LTI 1.3; AGS] - Added a new setting option, LearnerId_RegInLineItem to the Lti13SubjectIdentifierFormat setting. The LearnerId option now defaults to use the most recently updated registration for all Assignment and Grades Services when multiple registrations exist for the same learner and course, and LearnerId_RegInLineItem can be used to target an exact registration.

Dispatch registrations can now be filtered from notifications by using an empty string filter (i.e., the following regex: /^$/).
Configurable "time-to-first-byte" response timeout for package and asset imports.
Bumped Jackson Databind version for medium/high CVE issues CVE-2026-54512, CVE-2026-54513, and CVE-2026-54514.
Extra validation to prevent "RegistrationChanged" subscriptions from being created when "StoreRuntimeDataAsLob" is disabled with "false". Such subscriptions do not work.
[Java] - Minor version bump of HttpCore from "4.4.13" to "4.4.16".

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