VersionedAssets recipe for PmWiki.

[https://www.pmwiki.org/wiki/Cookbook/VersionedAssets](https://www.pmwiki.org/wiki/Cookbook/VersionedAssets)

This is a [PmWiki](https://www.pmwiki.org) recipe that adds versions (modification timestamps) to attachment URLs, so that browser caches invalidate properly when attachments are updated.

Please see [the recipe page on pmwiki.org](https://www.pmwiki.org/wiki/Cookbook/VersionedAssets) for installation and usage instructions. (Refer to the Talk page of the recipe page for support.)

Copyright 2017-2021 Said Achmiz.