Add policies reference section and license document

Author: zanieb

docs/reference/policies/index.md

@@ -0,0 +1,5 @@
+# Policies
+
+- [Versioning](./versioning.md)
+- [Platform support](./platforms.md)
+- [Licensing](./license.md)

docs/reference/policies/license.md

@@ -0,0 +1,19 @@
+# License
+
+uv is licensed under either of
+
+- Apache License, Version 2.0
+
+  [LICENSE-APACHE](https://github.com/astral-sh/uv/blob/main/LICENSE-APACHE) or
+  <https://www.apache.org/licenses/LICENSE-2.0>
+
+- MIT License
+
+  [LICENSE-MIT](https://github.com/astral-sh/uv/blob/main/LICENSE-MIT) or
+  <https://opensource.org/licenses/MIT>
+
+at your option.
+
+Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in uv
+by you, as defined in the Apache-2.0 license, shall be dually licensed as above, without any
+additional terms or conditions.

docs/reference/policies/platforms.md

@@ -0,0 +1,34 @@
+# Platform support
+
+uv has Tier 1 support for the following platforms:
+
+- macOS (Apple Silicon)
+- macOS (x86_64)
+- Linux (x86_64)
+- Windows (x86_64)
+
+uv is continuously built, tested, and developed against its Tier 1 platforms. Inspired by the Rust
+project, Tier 1 can be thought of as
+["guaranteed to work"](https://doc.rust-lang.org/beta/rustc/platform-support.html).
+
+uv has Tier 2 support
+(["guaranteed to build"](https://doc.rust-lang.org/beta/rustc/platform-support.html)) for the
+following platforms:
+
+- Linux (PPC64)
+- Linux (PPC64LE)
+- Linux (aarch64)
+- Linux (armv7)
+- Linux (i686)
+- Linux (s390x)
+
+uv ships pre-built wheels to [PyPI](https://pypi.org/project/uv/) for its Tier 1 and Tier 2
+platforms. However, while Tier 2 platforms are continuously built, they are not continuously tested
+or developed against, and so stability may vary in practice.
+
+Beyond the Tier 1 and Tier 2 platforms, uv is known to build on i686 Windows, and known _not_ to
+build on aarch64 Windows, but does not consider either platform to be supported at this time. The
+minimum supported Windows versions are Windows 10 and Windows Server 2016, following
+[Rust's own Tier 1 support](https://blog.rust-lang.org/2024/02/26/Windows-7.html).
+
+uv supports and is tested against Python 3.8, 3.9, 3.10, 3.11, 3.12, and 3.13.

docs/reference/policies/versioning.md

@@ -0,0 +1,20 @@
+# Versioning
+
+uv uses a custom versioning scheme in which the minor version number is bumped for breaking changes,
+and the patch version number is bumped for bug fixes, enhancements, and other non-breaking changes.
+
+uv does not yet have a stable API; once uv's API is stable (v1.0.0), the versioning scheme will
+adhere to [Semantic Versioning](https://semver.org/).
+
+uv's changelog can be [viewed on GitHub](https://github.com/astral-sh/uv/blob/main/CHANGELOG.md).
+
+## Cache versioning
+
+Cache versions are considered internal to uv, and so may be changed in a minor or patch release. See
+[Cache versioning](../../concepts/cache.md#cache-versioning) for more.
+
+## Lockfile versioning
+
+The `uv.lock` schema version is considered part of the public API, and so will only be incremented
+in a minor release as a breaking change. See
+[Lockfile versioning](../../concepts/resolution.md#lockfile-versioning) for more.

mkdocs.template.yml

@@ -68,6 +68,8 @@ plugins:
       redirect_maps:
         "concepts/workspaces.md": "concepts/projects/workspaces.md"
         "concepts/dependencies.md": "concepts/projects/dependencies.md"
+        "reference/versioning.md": "reference/policies/versioning.md"
+        "reference/platforms.md": "reference/policies/platforms.md"
 extra_css:
   - stylesheets/extra.css
 extra_javascript:
@@ -149,8 +151,11 @@ nav:
       - Resolver: reference/resolver-internals.md
       - Dependency specifiers: reference/dependency-specifiers.md
       - Benchmarks: reference/benchmarks.md
-      - Versioning: reference/versioning.md
-      - Platform support: reference/platforms.md
+      - Policies:
+        - reference/policies/index.md
+        - Versioning: reference/policies/versioning.md
+        - Platform support: reference/policies/platforms.md
+        - License: reference/policies/license.md
 validation:
   omitted_files: warn
   absolute_links: warn