Aaron D. Campbell

Gives you the ability to simply drag and drop to reorganize your images how you 
want them to appear in your gallery. If drag and drop isn’t your thing, it also 
adds an “Order” field to the images in your gallery, much like pages have, which 
allows you to reorder them to display in whatever order you want. Requires PHP5.
If you are having problems sorting since version 1.0.1 of this plugin, read this:
In order to fix another bug, I had to use the filename as a “handle” to drag by. 
When you move your cursor over the name of the file, it should change to a 
“move” cursor, at which time you can drag/drop the image as before.

Reorder Gallery

Allows you to reorder your gallery images with the ease of drag and drop. Resquires PHP5.

Aurovrata Venet

A. Chappard

Pondermatic

Rob Record

Due to a <a href="https://core.trac.wordpress.org/ticket/50070" rel="nofollow ugc">bug</a> in WordPress core, archive taxonomy queries are not being ranked properly on the front end. If your posts are not being ranked on your front-end site please read this <a href="https://wordpress.org/support/topic/help-the-pluign-is-not-working/" rel="ugc">thread</a> for more information.
v2.3 is now multi-post taxonomy enabled. A taxonomy registered with multiple post types can has its term’s posts in each type ranked manually and separately.
UPGRADE NOTE if you are upgrading from v1.x, your old ranking data remains unaffected in the custom table used by the v1.x plugin. However, in v2.x all the ranking is now stored as post meta. While upgrading, some users have complained of missing posts/lost rankings. If this is the case, you can reset your order for given term using the reset checkbox/button provided in the admin page (see screenshot #4). It will reload the ranking from the v1.x custom table. Please read FAQ #17 for more information on how to migrate your data.
If your term was not sorted in the v1.x table or you are upgrading from v2.0.x or v2.1.x, then the reset button will reload the post order as per the default WP post table listing, which can be changed using the filtrs provided (see FAQ #7).
ReOrder Post Within Categories is used to sort posts (and custom post type) in any custom order by drag & drop interface. 
It works with a selected category, each category can have different order of same post.
New enhanced version 2.0 with grid-layout and multi-drag interface to ease sorting of large list of posts. Makes use of <a href="https://sortablejs.github.io/Sortable/" rel="nofollow ugc">SortableJS</a> plugin. If you are using this plugin for a commercial website, please consider making a donation to the authors of the SortableJS plugin to continue its development.
<h3>Thanks to</h3>
<a href="https://wordpress.org/support/users/nikitasp/" rel="ugc">Nikita Spivak</a> for the Russian translation. 
<a href="https://profiles.wordpress.org/tobifjellner/" rel="nofollow ugc">Tor-Bjorn Fjellner</a> for the swedish translation and i18n clean-up. 
<a href="https://wordpress.org/support/users/alekseo/" rel="ugc">alekseo</a> for support for the plugin. 
<a href="https://github.com/andreicnegrea" rel="nofollow ugc">Andrei Negrea</a> for post delete bug fix. 
<a href="https://profiles.wordpress.org/maddogprod/" rel="nofollow ugc">maddogprod</a> for helping resolve custom taxonomy front-end ordering. 
<a href="https://profiles.wordpress.org/menard1965/" rel="nofollow ugc">menard1965</a> for helping resolve <code>get_adjacent_post</code> prev/next ranked posts. 
<a href="https://profiles.wordpress.org/alexjamesbishop/" rel="nofollow ugc">alexjamesbishop</a> for helping fix the ‘orderby’ bug. 
<a href="https://profiles.wordpress.org/pondermatic/" rel="nofollow ugc">pondermatic</a> for fixing the min-range bug. 
<a href="https://profiles.wordpress.org/andreicnegrea/" rel="nofollow ugc">andreicnegrea</a> for fixing the offset warnings. 
<a href="https://profiles.wordpress.org/isinica/" rel="nofollow ugc">isinica</a> for fixing the disappearing ranked post when editing them. 
<a href="https://profiles.wordpress.org/sarahjsouris/" rel="nofollow ugc">sarahjsouris</a> from <a href="https://www.playimports.com.au" rel="nofollow ugc">playimports.com.au</a> for sponsoring WooCommerce plugin upgrade. 
<a href="https://profiles.wordpress.org/howdy_mcgee/" rel="nofollow ugc">howdy_mcgee</a> – helping fix array orderby directives for WooCommerce. 
<a href="https://profiles.wordpress.org/pavelkovar/" rel="nofollow ugc">pavelkovar</a> – helping fix html escaping issues on admin pages.

ReOrder Posts within Categories

Enables manual ranking of post (and custom post) within taxonomy terms using a drag & drop grid interface.

Reorder Gallery vs ReOrder Posts within Categories