--- title: "p.book.product-version" description: "## Syntax **p.book.product-version(**version=\\[number];release=\\[number];modification=\\[number]**)** **            version** is the version number of the product. This argument is required. **release** is the release number of the product. This argument is optional. **modification** is the modification number of the product. This argument is optional.…" url: "https://www.stilo.com/docs/migrate/prolog/p-book-product-version/" updated: "2023-12-04" category: Annotations / Prolog tags: - Annotations --- # p.book.product-version ## Syntax **p.book.product-version(**version=\[number];release=\[number];modification=\[number]**)** **            version** is the version number of the product. This argument is required. **release** is the release number of the product. This argument is optional. **modification** is the modification number of the product. This argument is optional.   The version, release, and modification arguments can be inserted directly or as variables.   ## Purpose The p.book.product-version annotation is used to tag an element as being the version number of the product. This number can appear in a variety of formats, but it must contain a minimum of one digit (e.g. Version 1) and a maximum of three separate numbers (e.g. Version 1.4.12). These numbers can appear in any format. Content annotated with p.book.product-version will appear in the bookmap file’s metadata. ## Examples The following is an example of a time where you might want to use the p.book.product-version annotation: ![](https://www.stilo.com/wp-content/uploads/2023/10/stilo-dita-xml-annotation-p.book_.product-version0.png) The following is an example of a rule that will apply p.book.organization.addressdetails: ![](https://www.stilo.com/wp-content/uploads/2023/10/stilo-dita-xml-annotation-p.book_.product-version1.png)   The following is an example of the DITA output you would get from this annotation.   ````