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Breaking changes docs #2

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20 changes: 18 additions & 2 deletions doc/rtd/reference/breaking_changes.rst
Original file line number Diff line number Diff line change
Expand Up @@ -32,5 +32,21 @@ runcmd:
23.4 - status codes
===================

something something if you have a script that relies on cloud-init status
return values make sure to update it?
Cloud-init return codes have been extended with a new error code (2),
which will be returned when cloud-init experiences an error that it can
recover from. See :ref:`this page which documents the change<error_codes>`.


23.2 - kernel commandline
=========================

The ds= kernel commandline value is used to forcibly select a specific
datasource in cloud-init. Prior to 23.2, this only optionally selected
the ``NoCloud`` datasource.

Anyone that previously had a matching `ds=nocloud*` in their kernel commandline
that did not want to use the NoCloud datasource may experience broken behavior
as a result of this change.

Workarounds include updating the kernel commandline and optionally configuring
a datasource_list in /etc/cloud/cloud.cfg.d/*.cfg.
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