New Magento 1 patch has been released, **SUPEE-10415**.

> 
> This patch provides protection against several types of security-related issues
> 
> 
> 

Info page: <https://magento.com/security/patches/supee-10415>  

Download page: <https://magento.com/tech-resources/download>

What are the possible issues to watch out?

Also, please share all the bugs and problems that you have found after patch install.

---

* Issue with applying SUPEE-10415 on vanilla **1.9.1.1**, shows cannot be applied due to hunk error message at **Image.php**.
**EDIT: As of Dec 7, 2017 fix is provided in SUPEE-10497**
* Must have **8788 Versions 2** installed, otherwise will see "Unsupported data type" errors. [More info.](https://magento.stackexchange.com/a/203795/35443)
* **"404: Page Not Found"** error from the errors/ directory after upgrading to SUPEE-10415. This issue occurs only in Magento installations that run certain third-party extensions.  

***Workaround:*** Confirm that there are no PHP warnings generated by any of the extensions or customizations.