Hi Jim,
As long as you have not made any customization to the particle Twig file (as long as you do not have
an override in the
custom/particles
folder) all you need to do is to update the template as explained in the "Update" section in the template documentation. Just upload the Standalone template (
tpl_TemplateName-1.x.x.zip) over the existing one via the Extensions Manager.
Sorry, I forgot to ask if the updated particles will also be loaded at the same time as the template is loaded?
I'm not sure if I understand what you mean

The particles are part of the template. So as soon as you update the template, you will get the updated particles.
For the other users who have overrides in the
custom/particles
folder - you need to manually copy the new Twig files by overwriting the existing ones.
Here is an example:
1. Let's say that you are using the Oxygen template. It does not come with the "Gallery" particle by default.
2. But you needed the "Gallery" particle so you installed it manually by following the
Installation Instructions.
3. In order to update the "Gallery" particle you need to do the following:
a. Download its latest version from our website
b. Copy the YAML and Twig files to your
custom/particles
folder by overwriting the files that are already there.
It would have been much easier if the Rockettheme guys had implemented the
Particle Packaging.
I encourage all of you to comment on the Particle Packaging issue on Github. The more people ask for it, the sooner it will get implemented.