How to install SUPEE-10266

September 15, 2017: Community Edition 1.9.3.6 and SUPEE-10266 Security Enhancements – 9/15/2017.

New SUPEE-10266 patch can be downloaded as usual from Downloads page: https://magento.com/tech-resources/download#download2073 or installed as a regular Magento upgrade via Downloader (it is included in Magento 1.9.3.6 version). You can install it in the same way as previous patches or by upgrading to Magento 1.9.3.6. To apply the patch you need SSH access (shell access actually, SSH is just most used way to get shell access) to the server. If you have no SSH access, you can refer to How to apply SUPEE-10266 without SSH. If you wish to save time and have us to install these patches for you, simply click here to order installation.

Step 0: Preparations

Note: Make sure to Disable Magento Compiler at System > Configuration > Tools > Magento Compiler and clear compiled cache.

Step 1: Verify your Magento version

$ grep -A6 'static function getVersionInfo' app/Mage.php
    public static function getVersionInfo()
    {
        return array(
            'major'     => '1',
            'minor'     => '9',
            'revision'  => '3',
            'patch'     => '3',

As you can see in the example, it is Magento 1.9.3.3

Step 2: Download corresponding patch

The patch should be downloaded from https://magento.com/tech-resources/download#download2073 Make sure to get the right file corresponding to your Magento version.

Step 3: Place patches into Magento Root directory

Upload your files into Magento root directory. It is important to place patch files directly into Magento root directory and execute it also directly in Magento root directory.

$ ls -1 .
PATCH_SUPEE-10266_CE_1.9.3.4_v1-2017-09-13-06-39-58.sh
app
cron.php
downloader
errors
favicon.ico
index.php
js
lib
mage
media
pkginfo
robots.txt
shell
skin
var

Step 4: Run the patches

$ bash ./PATCH_SUPEE-10266_CE_1.9.3.4_v1-2017-09-13-06-39-58.sh
Checking if patch can be applied/reverted successfully...
Patch was applied/reverted successfully.

Step 5: Verification and flush of Magento PHP opcode cache

Flush Magento caches: Navigate in Magento backend to System > Cache Management and flush Magento cache and CSS/JS caches. If you use PHP opcode caches (OPCache/APC/XCache/eAccelerator) make sure to flush it after patching (or restart webserver), otherwise code will continue to run from caches. Test that your store is working. Test Checkout process. If you have any difficulties with applying the patches please let us know in comments, so we can find the solution together.

Comments

Archived discussion

Swiss-Mage 2017-09-15

Hi there - a quick question. We are on Magento 1.9.3.4 - tried to update with Downloader to latest magento 1.9.3.6. It doesn’t work. I always get “bla bla is conflicting with bla bla”. In the end, it doesn’t update to 1.9.3.6 So, is it better to install patch instead? Or if better to update - what is the best way to update to 1.9.3.6 Thanks in advance!
1. ChristosConstantinou 2017-09-15
  
  Same issue here, Magento seems to have released a broken upgrade. The solution is to first apply the recent patches and THEN upgrade to 1.9.3.6.
  1. Swiss-Mage 2017-09-15
    
    Thanks. I tried with SH files, got an “OK”, but the files have not been patched. Damn. Ok, will try later again :-( ´
2. magentary 2017-09-15
  
  The only difference between Magento 1.9.3.6 and Magento 1.9.3.4 with SUPEE-10266 patch is version string, so SUPEE-10266 contains all changes from 1.9.3.6 and installing SUPEE-10266 on top of 1.9.3.4 or upgrade of 1.9.3.4 to 1.9.3.6 will lead to the same results. Applying the patch seems to be the easiest way to go in that case.