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However, if you have more substantive changes, such as making significant changes to text or images, or changing important dates or contact details, please open a new ticket.
Time delays when publishing via Whitehall Publisher
The Government Digital Service (GDS) has advised that Whitehall Publisher can sometimes experience delays of up to 30 minutes when adding new content to the GOV.UK live site.
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You can also clear your cache.
https://www.gov.uk/guidance/content-design/writing-for-gov-uk#after-publication