> 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-cics-en/reinstallation/onesait-editran-installation/migration-from-onesait-editran-5.0-phase-2-to-onesait-editran-5.1-phase-xx.md).
# Migration from Onesait · Editran 5.0 phase 2 to Onesait · Editran 5.1 phase xx
⚠️ It is necessary to have performed a migration to V5R0 phase 2 (see previous chapters).
The different programs involved are as follows:
## Onesait · Editran 5.0 phase 2 to Onesait · Editran 5.1 phase 0 migration process
* JCL ZTBMJA51 (prog ZTBMBA51). This JCL does not migrate. It generates a file whose contents are the sessions in the version they were in and in the version of how they will be. The JCL itself provides information on the sessions that will be “changed”, so that before migrating you can have a clear idea of what it affects.
* JCL ZTBMJB51 (prog ZTBMBB51). It migrates to 5.1 the sessions that remain in the output file from the previous step.
## Onesait · Editran 5.0 phase 2 to Onesait · Editran 5.1 phase 1 migration process.
No migration required. There are new fields in profiles, for example, enabled session, but they do not take effect unless they are modified.
ℹ️ Note: in this version all files can already be accessed via EXCI, therefore in FCTCEDA and FCTCEDAE the file definitions include ADD, UPD and DEL.
## Onesait · Editran 5.0 phase 2 to Onesait · Editran 5.1 phase 2 and 3 migration process.
Migration is required for the FF module, program ZTBFMFPE. The ZTBMJFPE JCL must be run
About the Editran/FF profiles file ZTBFFPER.
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