Operational Guidelines

Change Log v4.0.1

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This is the latest version Published 1 week ago 18 Mar 2026

Operational Guidelines Changes: v4.0 to v4.0.1

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Operational Guidelines Changes: v4.0 to v4.0.1

LinkSub section/LocationChangeReason for Change
Guidance on downtimeWhole pageRewritten guidance on downtime

Please note in the new guideline table that bold green is “brand new” whilst unbold green is based on content from the previous (i.e. v4.0) version.		Change Request
Changes to an ASPSP’s Infrastructure, Configuration or SoftwareWhole pageUpdated text clarifying the expectations on ASPSPs to limit impact on TPPs and PSUs in terms of forcing reauthentication or reconsent due to infrastructure, configuration or software changes. Minor correction during v4.0.1 discussions
Implementation of a new Open Banking StandardBackward and Forward CompatibilityRevised text to align to the Specifications to make clear which operations or resources must be backward and forward compatible across versions.Minor correction during v4.0.1 discussions