there has been updated vs there have been updated

Some examples from the web:

• The legal references have been updated.
• The thumbnails database has been updated.
• This system hasn't been updated since the Prohi-bish.
• It's the only one that's been updated recently.
• It's the only one that's been updated recently.
• Everything else in the house has been updated.
• The contact details of the applicant group have been updated.
• The contact details of the structures responsible for monitoring the designation have been updated.
• Deputy director's been updated on the threat.
• The system hasn't been updated is all.
• The EPC's website has been updated with the relevant EPC documents.
• This mechanism has been updated over the years and this report suggests further improvements.
• This notification has since been updated to reflect changes in the selection procedure.
• Some data (particularly on income distribution) have not been updated since 2001.
• [41] The figures published in the 2004 report have been updated.
• For clarification and transparency purposes, some budgetary comments have been updated.
• The current values in the Regulation have not been updated since they were adopted.
• Recitals 1-5 have been updated in order to take account of the latest developments at political level.
• Particulars concerning the description of the commodities have recently been updated.
• The leaders of other factions been updated and are willing to cooperate.

Some examples from the web:

• The legal references have been updated.
• The thumbnails database has been updated.
• This system hasn't been updated since the Prohi-bish.
• It's the only one that's been updated recently.
• It's the only one that's been updated recently.
• Everything else in the house has been updated.
• The contact details of the applicant group have been updated.
• The contact details of the structures responsible for monitoring the designation have been updated.
• Deputy director's been updated on the threat.
• The system hasn't been updated is all.
• The EPC's website has been updated with the relevant EPC documents.
• This mechanism has been updated over the years and this report suggests further improvements.
• This notification has since been updated to reflect changes in the selection procedure.
• Some data (particularly on income distribution) have not been updated since 2001.
• [41] The figures published in the 2004 report have been updated.
• For clarification and transparency purposes, some budgetary comments have been updated.
• The current values in the Regulation have not been updated since they were adopted.
• Recitals 1-5 have been updated in order to take account of the latest developments at political level.
• Particulars concerning the description of the commodities have recently been updated.
• The leaders of other factions been updated and are willing to cooperate.