Hi,
Each time a bug is found after a release, a new build is uploaded with the patch. Almost every day, a new build is uploaded.
And each time we publish a new release, all the patches added since the previous release are included so people updating will get them.
We had 35 builds of HikaShop 4.2.2 since its release.
We don't want to make a new release for each patch. That would be crazy for everyone.
We would only make a new release for a patch if it would be really important, like a bug with a new version of Joomla which crashes HikaShop in some way, or a security issue found.
For minor issues like this one (which doesn't prevent your website from working. It just less nice on Safari) we only upload a new build so if you are affected, you can just download the install package again and install it on top to get the patchs.
So in short, you likely never have the latest version of all the files unless you've just updated your HikaShop. Now in 99%, it's not a problem for you. You don't even know about it as the patchs most likely don't concern you. Now if a notice an issue, it's a good idea to download again the install package on our website and install it on yours to get all the latest patchs and see if you still have the issue.