We use Magento for our ecommerce, and have a security patch outstanding. I can probably implement this myself, but my question is, how likely is it to break our website?
We have had it designed by another company, and if I implement patches, and some functions stop working etc, we will have to pay for designers to sort the problems out. They've quoted £200 for implementing all outstanding upgrades and patches etc and to test them all - they have said that applying updates will require code changes from their side, which is included
Is it quite unlikely that patches and updates won't have any effect on the website? Should I do it myself or will it be best to pay to get it all sorted by our designers?