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Minor clarifications

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
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Gilles Peskine 2021-06-07 20:42:40 +02:00
parent 1483fe4c21
commit d1a8cd5169
1 changed files with 6 additions and 6 deletions
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@ -28,7 +28,7 @@ undocumented features, then you should be able to re-compile it without
modification with any later release x.y'.z' with the same major version
number, and your code will still build, be secure, and work.
Note that new releases of Mbed TLS may extend the API. Here are some example of changes that are common in minor releases of Mbed TLS, and are not considered compatibility breaks:
Note that new releases of Mbed TLS may extend the API. Here are some example of changes that are common in minor releases of Mbed TLS, and are not considered API compatibility breaks:
* Adding or reordering fields in a structure or union.
* Removing a field from a structure, unless the field is documented as public.
@ -37,11 +37,11 @@ Note that new releases of Mbed TLS may extend the API. Here are some example of
* Changing which error code is returned in a case where multiple error conditions apply.
* Changing the behavior of a function from failing to succeeding, when the change is a reasonable extension of the current behavior, i.e. the addition of a new feature.
There are rare exceptions: code that was relying on something that became
insecure in the meantime (for example, crypto that was found to be weak) may
need to be changed. In case security comes in conflict with backwards
compatibility, we will put security first, but always attempt to provide a
compatibility option.
There are rare exceptions where we break API compatibility: code that was
relying on something that became insecure in the meantime (for example,
crypto that was found to be weak) may need to be changed. In case security
comes in conflict with backwards compatibility, we will put security first,
but always attempt to provide a compatibility option.
For the LTS branches, additionally we try very hard to also maintain ABI
compatibility (same definition as API except with re-linking instead of