There are a few simple things that I think would really help the gavick community.
1) Add a search in the updates section. (The drop down is terrible)
2) Have the complete changelog under the download page.
Example: here you have a changelog for the last version (not all)
https://www.gavick.com/updates/modules/mod_image_show_gk4_j16,815.html
and here there is no change log
https://www.gavick.com/download/joomla-25-extensions/imageshow.html
3) It would be nice if there was a list of modified files in the change log.
4) On the download page for each module / template there should be instructions on how to update the module or template. I know how to update but in the beginning it was frustrating that there was no help file or anything at all. I think it only takes a few minutes to create and would only help. I think it's doing the simple things well that you can really make a difference.
Thanks for putting any of those into use.