Allows to insert post lists using inline code:
[posts q="cat=39&posts_per_page=3&meta_key=_thumbnail_id"]
<a href="{get_the_permalink}">
{if has_post_thumbnail}{get_the_post_thumbnail 0 medium}<br>{/if}
{get_the_title}</a><br>
[/posts]
and theme templates:
[posts q="cat=2&posts_per_page=3" item="content-aside"]