> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/ibm-editran-v5.3-comun-z-os-en/editran-ff-instalacion-firma-y-verificacion-v7.1.1/cambios-y-restricciones-en-la-version-3.1.0.md).

# Changes and restrictions in version ESS 3.1.0

* It is now possible to sign with certificates stored in RACF, as long as they are associated with a user's ring. Due to IBM limitations, it is not possible to sign in PKCS#7 mode with certificates whose private key is stored in hardware (PKDS).
* The fichero\_keystores utility has been replaced by gestor\_claves. Its operation is identical, except that it has a different interface.
* When verifying the signature, the use of public certificates (.cer) instead of DN is allowed.


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