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HOW TO CONTRIBUTE TO OpenSSL
============================
Please visit our [Getting Started][gs] page for other ideas about how to contribute.
[gs]: https://www.openssl.org/community/getting-started.html
Development is done on GitHub in the [openssl/openssl][gh] repository.
[gh]: https://github.com/openssl/openssl
To request new features or report bugs, please open an issue on GitHub
To submit a patch, please open a pull request on GitHub. If you are thinking
of making a large contribution, open an issue for it before starting work,
to get comments from the community. Someone may be already working on
the same thing or there may be reasons why that feature isn't implemented.
To make it easier to review and accept your pull request, please follow these
guidelines:
1. Anything other than a trivial contribution requires a [Contributor
License Agreement][CLA] (CLA), giving us permission to use your code.
If your contribution is too small to require a CLA (e.g. fixing a spelling
mistake), place the text "`CLA: trivial`" on a line by itself separated by
an empty line from the rest of the commit message. It is not sufficient to
only place the text in the GitHub pull request description.
[CLA]: https://www.openssl.org/policies/cla.html
To amend a missing "`CLA: trivial`" line after submission, do the following:
```
git commit --amend
[add the line, save and quit the editor]
git push -f
```
2. All source files should start with the following text (with
appropriate comment characters at the start of each line and the
year(s) updated):
```
Copyright 20xx-20yy The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
https://www.openssl.org/source/license.html
```
3. Patches should be as current as possible; expect to have to rebase
often. We do not accept merge commits, you will have to remove them
(usually by rebasing) before it will be acceptable.
4. Patches should follow our [coding style][] and compile without warnings.
Where `gcc` or `clang` is available you should use the
`--strict-warnings` `Configure` option. OpenSSL compiles on many varied
platforms: try to ensure you only use portable features. Clean builds
via Travis and AppVeyor are required, and they are started automatically
whenever a PR is created or updated.
[coding style]: https://www.openssl.org/policies/codingstyle.html
5. When at all possible, patches should include tests. These can
either be added to an existing test, or completely new. Please see
[test/README.md](test/README.md) for information on the test framework.
6. New features or changed functionality must include
documentation. Please look at the "pod" files in doc/man[1357] for
examples of our style. Run "make doc-nits" to make sure that your
documentation changes are clean.
7. For user visible changes (API changes, behaviour changes, ...),
consider adding a note in [CHANGES.md](CHANGES.md).
This could be a summarising description of the change, and could
explain the grander details.
Have a look through existing entries for inspiration.
Please note that this is NOT simply a copy of git-log one-liners.
Also note that security fixes get an entry in [CHANGES.md](CHANGES.md).
This file helps users get more in depth information of what comes
with a specific release without having to sift through the higher
noise ratio in git-log.
8. For larger or more important user visible changes, as well as
security fixes, please add a line in [NEWS.md](NEWS.md).
On exception, it might be worth adding a multi-line entry (such as
the entry that announces all the types that became opaque with
OpenSSL 1.1.0).
This file helps users get a very quick summary of what comes with a
specific release, to see if an upgrade is worth the effort.
9. Guidelines how to integrate error output of new crypto library modules
can be found in [crypto/err/README.md](crypto/err/README.md).
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