**Warning:** This is option is not considered secure due to potential filesystem/network access.
-This option uses [weasyprint](https://doc.courtbouillon.org/weasyprint/stable/) to generate PDF exports.
+This example uses [weasyprint](https://doc.courtbouillon.org/weasyprint/stable/) to generate PDF exports.
```bash
EXPORT_PDF_COMMAND="weasyprint {input_html_path} {output_pdf_path}"
### Using wkhtmltopdf
-**Note:** As of BookStack v24.05 this option is not considered deprecated, due to the diminishing support of wkhtmltopdf.
+**Note:** As of BookStack v24.05 this option is considered deprecated, due to the diminishing support of wkhtmltopdf.
You can instead use the more flexible [PDF Export Command](#pdf-export-command) option detailed above.
Pre-compiled binaries for wkhtmltopdf can be found on the downloads page of [their website](http://wkhtmltopdf.org/downloads.html).
type = "admin-doc"
+++
-While we try to ensure a fairly slow, steady and stable path for BookStack updates, requirements do change
+While we try to ensure a fairly steady & stable path for BookStack updates, requirements do change
as software develops & moves on. In particular, the minimum required version of PHP will increase
about once per year. Every so often we also may require a new minimum version of composer to be used
for BookStack. This page details the common steps required to update these both.
<details>
<summary>Updating to PHP 8.3 on most Debian & Ubuntu based systems using Apache</summary>
-The commands below provide an example of how PHP can be updated to the latest version (8.3) on most Debian & Ubuntu based systems
+The commands below provide an example of how PHP can be updated to the PHP 8.3 on most Debian & Ubuntu based systems
that are running PHP via Apache using mod-php.
**Warnings:**