I have a magento 1.9.2 installed for the past two years and never applied SUPEE security patches. I looked up so many articles online on how to apply these patches but there are some doubts I need to be explained from your experience.
- How do I know what patches that are not installed?
- Once I install them, how do I know they are actually installed?
- Is there a possibility patching can cause issues with the installation (theme & extension) or it is unrelated?
- Sever environment I have is shared, and all articles mention SSH commands to install the patches. Is there another way around without SSH to install SUPEEs.
- If I am missing several patches, do they need to be installed in a sequence. Older one first, etc.