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# Apache MINA sshd

Welcome to the _development_ web site of Apache MINA sshd. This web site currently
contains technical information about the development of a new major release **3.0.0**.

Apache MINA sshd is a pure Java library for client- and server-side SSH.

* The main web site is at [Apache MINA sshd](https://mina.apache.org/sshd-project).
* For now, [technical documentation](https://github.com/apache/mina-sshd/blob/master/README.md)
still lives directly in the git repository and can be viewed as rendered web pages in GitHub.
* Technical information on the development of release 3.0.0 is available in branch `dev_3.0`:
    * [Changes since 2.16.0](https://github.com/apache/mina-sshd/blob/dev_3.0/CHANGES.md)
    * [Technical documentation](https://github.com/apache/mina-sshd/tree/dev_3.0/docs/technical)

Release 3.0.0 will be a new major release and will contain many breaking API changes.
It will not be API-compatible with the 2.X releases. There are
[`japicmp`](https://siom79.github.io/japicmp) reports about the API changes available
here; see the menu on the left. Most of the API changes affect only the `protected` API,
i.e., the API for subclassing. But there are also changes in the `public` API that may
affect user code.

## Roadmap

We cannot give a definitive roadmap with milestone dates. All development is done by
volunteers in their free time and resources are limited.

But we can give you a rough outline of what we want to do:

* **3.0.0-M1**: Rework of the SSH transport protocol as a filter chain. The main user-visible
  new feature is support for client-side proxies.
* **3.0.0-M2**: Refactoring of cryptography. New feature: multi-release JARs for `sshd-common`
  and `sshd-osgi` and using on newer Java versions the already built-in cryptographic algorithms
  for ChaCha20, ed25519, and ML-KEM.
* **3.0.0-M3**: Bug fix release of 3.0.0-M2, and update base to 2.17.1.

Further possible milestones (the order might change, though):

* Some refactoring of SFTP code; current code has shortcomings regarding SFTP file systems.
* Resolve the split packages between `sshd-common` and `sshd-core`.
* Anything else we stumble upon and that we cannot fix reasonably without breaking API.

We reserve the right to make arbitrary API changes between M-releases.