Version history
‘What’s new’ events in Review Manager (RevMan) become the Version History of a protocol or a review when it is published on the Cochrane Library.
Use ‘What’s new’ events in Review Manager (RevMan) to describe the changes to the protocol or review since it was last published. What’s New events are used to help readers understand the type of change made to a new version of a Cochrane Review (or protocol for a Cochrane Review), such as an amendment, an update, and whether the conclusions have been changed or not. This is to ensure that the history of changes to a review remain with the review as new versions are published.
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- To ensure a new citation is applied when appropriate. Note that assigning a new citation generates a new digital object identifier (DOI) and citation in external databases, including PubMed.
- To give readers clear information on what has changed between versions.
- To select the appropriate what’s new events before publication because these cannot be changed after publication (e.g. it is not possible to ‘undo’ a new citation).
Archie/RevMan guidance: While it is technically possible to enter several You can include a maximum of two ‘What’s New’ events in an updated review, only RevMan. Only information about the changes since the last published version should version should be in the ‘What’s New’ table.
‘What’s New’ events from previously published versions must be moved to the 'History' table in RevMan.
The 'Date' field in RevMan must be populated with the date of publication (or as close to it as possible).
Also see: Digital object identifier (DOI) and website address (URL) of a Cochrane Review and Citation versions: DOIs and URLs.
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Type of change | Conclusions changed? | New citation version? | ‘What’s new’ events to select in RevMan |
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- Addition of new studies (e.g. the full inclusion of a study previously awaiting classification)
- Removal of one or more studies previously included (e.g. when the studies have been retracted)
- Any changes to the following sections (except minor typographical errors that do not impact the data or review findings or interpretation): scope of the review (e.g. new outcomes, comparisons, types of participants or developments in the intervention or its delivery); methodology; results (e.g. in effect estimates or confidence intervals), the certainty in the results (as expressed by GRADE ratings); conclusions; Summary of Findings tables; Abstract; and/or Plain Language Summary
- Where review is changed in response to a Comment/Feedback (beyond minor typographical changes)
| Y | Y | (1) Updated* OR amended AND (2) New citation: conclusions changed |
- Minor typographical errors that do not impact the data or review findings or interpretation
- One or more studies removed from ‘Studies awaiting classification’
- New search performed, but studies not fully incorporated into the results of the review (i.e. added to ‘Studies awaiting classification’)**
- Addition of a comment and/or a reply to the feedback section but with no other changes to the review (apart from minor typographical errors)
- Republishing a withdrawn review to add new information to the withdrawal notice (e.g. to indicate that the review has been superseded by a different review)
- Addition of an Editorial note (see Editorial notes)
| N | N | (1) Amended |
- Addition of new studies (e.g. the full inclusion of a study previously awaiting classification)
- Removal of a study previously included (e.g. when the studies have been retracted)
- Any changes to the following sections (except minor typographical errors that do not impact the data or review findings or interpretation): scope of the review (e.g. new outcomes, comparisons, types of participants or developments in the intervention or its delivery); methodology; results (e.g. in effect estimates or confidence intervals), the certainty in the results (as expressed by GRADE ratings); conclusions; Summary of Findings tables; Abstract; and/or Plain Language Summary
- Where review is changed in response to a Comment/Feedback (beyond minor typographical errors)
- Where one or more of the studies has a published expression of concern, and a note of caution is added to the published review, pending further information
- Post-publication change in authorship (see Changes in authorship)
- Incorrect author affiliation published
| N | Y | (1) Updated* OR amended AND (2) New citation: conclusions not changed |
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