> 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-iseries-en/nueva-funcionalidades/changes-in-onesait-editran-5.3-with-respect-to-onesait-editran-5.2.md).

# Changes in Onesait Editran 5.3 with respect to Onesait Editran 5.2

#### 1.1.1          Incompatibility with Onesait Editran < 5.0

Compatibility with version < 5.0 has been removed. There is a migration program whose operation is detailed in the document Manual-de-Migracion-Iseries\_v5.3.

#### 1.1.2         Incompatibility with cryptographic version 2.2

All references to cryptographic version 2.2 have been removed. Only AES is allowed as the confidentiality algorithm (with any key length) in cryptographic version 4.0 and TDES (triple key length: 24 bytes) in both cryptographic versions 3.0 and 4.0. There is a migration program whose operation is detailed in the file Manual-de-Migracion-Iseries\_v5.3. The SESSION PRESENTATION NUMBER parameter disappears

Everything related to SESSION PRESENTATION NUMBER disappears from the user interface, as well as from the protocol. The outgoing SCP message will be marked with session number = 0001. No validation will be performed on the session number in the incoming SCP message.

#### 1.1.3         The CHARACTER SET (A/E) parameter disappears

The CHARACTER SET (A/E) parameter disappears from the remote screen and from all remote programs

#### 1.1.4         The CONFIRM DOWNLOAD (E,R,X,N) parameter is changed to REQUEST DOWNLOAD ACKNOWLEDGMENT (S/N)

The CONFIRM DOWNLOAD (E,R,X,N) parameter is changed to REQUEST DOWNLOAD ACKNOWLEDGMENT (S/N), as well as its operation. There is a migration program whose operation is detailed in the file [Manual-de-Migracion-ISeries\_v5.3](file://indranas/editran$/DESARROLLO/Manuales/En%20Edición/Editran%20Core/iSeries/Manual-de-Migracion-IMS-CICS_v5.3.docx)


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