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release-information.rst

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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 PRs) 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 PRs are essential for the release. A release branch may be created after code freeze if there are significant PRs 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

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

Removal of Deprecated Interfaces

As mentioned in the Platform compatibility 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 Date Removed after Release Comments
Legacy Console API Jan '18 v2.1 Deprecated in favour of MULTI_CONSOLE_API
Weak default plat_crash_console_* APIs Oct '18 v2.1 The default implementations are defined in crash_console_helpers.S. The platforms have to define plat_crash_console_*.
finish_console_register macro in MULTI_CONSOLE_API Oct '18 v2.1 The old version of the macro is deprecated. See commit cc5859c for more details.
Types tzc_action_t and tzc_region_attributes_t Oct '18 v2.1 Using logical operations such as OR in enumerations goes against the MISRA guidelines.
Macro EL_IMPLEMENTED() Oct '18 v2.1 Deprecated in favour of el_implemented().
get_afflvl_shift(), mpidr_mask_lower_afflvls(), and eret(). Dec '18 v2.1 Removed.
Extra include paths in the Makefile in INCLUDES. Jan '18 v2.1 Now it is needed to use the full path of the common header files. More information in commit 09d40e0e0828.

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