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Release Processes
=================
Project Release Cadence
-----------------------
The project currently aims to do a release once every 6 months which will be
tagged on the master branch. There will be a code freeze (stop merging
non-essential changes) up to 4 weeks prior to the target release date. The release
candidates will start appearing after this and only bug fixes or updates
required for the release will be merged. The maintainers are free to use their
judgement on what changes are essential for the release. A release branch may be
created after code freeze if there are significant changes that need merging onto
the integration branch during the merge window.
The release testing will be performed on release candidates and depending on
issues found, additional release candidates may be created to fix the issues.
::
|<----------6 months---------->|
|<---4 weeks--->| |<---4 weeks--->|
+-----------------------------------------------------------> time
| | | |
code freeze ver w.x code freeze ver y.z
Version numbering
~~~~~~~~~~~~~~~~~
TF-A version is given in Makefile, through several macros:
- VERSION_MAJOR
- VERSION_MINOR
- VERSION_PATCH
For example, TF-A v2.10 has VERSION_MAJOR=2, VERSION_MINOR=10 and VERSION_PATCH=0.
This VERSION_PATCH macro is only increased for LTS releases.
Upcoming Releases
~~~~~~~~~~~~~~~~~
These are the estimated dates for the upcoming release. These may change
depending on project requirement and partner feedback.
+-----------------+---------------------------+------------------------------+
| Release Version | Target Date | Expected Code Freeze |
+=================+===========================+==============================+
| v2.0 | 1st week of Oct '18 | 1st week of Sep '18 |
+-----------------+---------------------------+------------------------------+
| v2.1 | 5th week of Mar '19 | 1st week of Mar '19 |
+-----------------+---------------------------+------------------------------+
| v2.2 | 4th week of Oct '19 | 1st week of Oct '19 |
+-----------------+---------------------------+------------------------------+
| v2.3 | 4th week of Apr '20 | 1st week of Apr '20 |
+-----------------+---------------------------+------------------------------+
| v2.4 | 2nd week of Nov '20 | 4th week of Oct '20 |
+-----------------+---------------------------+------------------------------+
| v2.5 | 3rd week of May '21 | 5th week of Apr '21 |
+-----------------+---------------------------+------------------------------+
| v2.6 | 4th week of Nov '21 | 2nd week of Nov '21 |
+-----------------+---------------------------+------------------------------+
| v2.7 | 5th week of May '22 | 3rd week of May '22 |
+-----------------+---------------------------+------------------------------+
| v2.8 | 5th week of Nov '22 | 3rd week of Nov '22 |
+-----------------+---------------------------+------------------------------+
| v2.9 | 4th week of May '23 | 2nd week of May '23 |
+-----------------+---------------------------+------------------------------+
| v2.10 | 4th week of Nov '23 | 2nd week of Nov '23 |
+-----------------+---------------------------+------------------------------+
Removal of Deprecated Interfaces
--------------------------------
As mentioned in the :ref:`Platform Ports Policy`, this is a live document
cataloging all the deprecated interfaces in TF-A project and the Release version
after which it will be removed.
+--------------------------------+-------------+---------+---------------------------------------------------------+
| Interface | Deprecation | Removed | Comments |
| | Date | after | |
| | | Release | |
+================================+=============+=========+=========================================================+
| Mbedtls-2.x | 2.10 | 2.10 | Support for TF-A builds with Mbedtls-2.x will be removed|
+--------------------------------+-------------+---------+---------------------------------------------------------+
| STM32MP15_OPTEE_RSV_SHM | 2.10 | 3.0 | OP-TEE manages its own memory on STM32MP15 |
+--------------------------------+-------------+---------+---------------------------------------------------------+
Removal of Deprecated Drivers
-----------------------------
As mentioned in the :ref:`Platform Ports Policy`, this is a live document
cataloging all the deprecated drivers in TF-A project and the Release version
after which it will be removed.
+--------------------------------+-------------+---------+---------------------------------------------------------+
| Driver | Deprecation | Removed | Comments |
| | Date | after | |
| | | Release | |
+================================+=============+=========+=========================================================+
| None at this time. | | | |
+--------------------------------+-------------+---------+---------------------------------------------------------+
--------------
*Copyright (c) 2018-2023, Arm Limited and Contributors. All rights reserved.*
|
