🔖 Prepare release of v2.1.0 (#712)

## Description

This PR prepares the release of v0.2.1.

## Checklist:

- [x] The pull request only contains commits that are focused and
relevant to this change.
- [x] ~I have added appropriate tests that cover the new/changed
functionality.~
- [x] ~I have updated the documentation to reflect these changes.~
- [x] ~I have added entries to the changelog for any noteworthy
additions, changes, fixes, or removals.~
- [x] ~I have added migration instructions to the upgrade guide (if
needed).~
- [x] The changes follow the project's style guidelines and introduce no
new warnings.
- [x] The changes are fully tested and pass the CI checks.
- [x] I have reviewed my own code changes.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Documentation**
* Updated release notes and upgrade guidance for version 2.1.0,
including links to the new release and upgrade instructions.

* **Breaking Changes**
* Python 3.9 support has been discontinued. Python 3.10 or later is now
required.

* **Chores**
* Package metadata updated to indicate Python 3 support and typing
information.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: Daniel Haag <121057143+denialhaag@users.noreply.github.com>

Author: denialhaag

CHANGELOG.md

@@ -9,6 +9,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+## [2.1.0] - 2025-10-18
+
+_If you are upgrading: please see [`UPGRADING.md`](UPGRADING.md#210)._
+
 ### Added
 
 - 👷 Enable testing on Python 3.14 ([#705]) ([**@denialhaag**])
@@ -73,7 +77,8 @@ _📚 Refer to the [GitHub Release Notes] for previous changelogs._
 
 <!-- Version links -->
 
-[unreleased]: https://github.com/munich-quantum-toolkit/bench/compare/v2.0.1...HEAD
+[unreleased]: https://github.com/munich-quantum-toolkit/bench/compare/v2.1.0...HEAD
+[2.1.0]: https://github.com/munich-quantum-toolkit/bench/releases/tag/v2.1.0
 [2.0.1]: https://github.com/munich-quantum-toolkit/bench/releases/tag/v2.0.1
 [2.0.0]: https://github.com/munich-quantum-toolkit/bench/releases/tag/v2.0.0
 [1.1.9]: https://github.com/munich-quantum-toolkit/bench/releases/tag/v1.1.9

UPGRADING.md

@@ -4,6 +4,8 @@ This document describes breaking changes and how to upgrade. For a complete list
 
 ## [Unreleased]
 
+## [2.1.0]
+
 ### End of support for Python 3.9
 
 Starting with this release, MQT Bench no longer supports Python 3.9.
@@ -127,6 +129,9 @@ MQT Bench has moved to the [munich-quantum-toolkit](https://github.com/munich-qu
 While most links should be automatically redirected, please update any links in your code to point to the new location.
 All links in the documentation have been updated accordingly.
 
-[unreleased]: https://github.com/munich-quantum-toolkit/bench/compare/v2.0.1...HEAD
+<!-- Version links -->
+
+[unreleased]: https://github.com/munich-quantum-toolkit/bench/compare/v2.1.0...HEAD
+[2.1.0]: https://github.com/munich-quantum-toolkit/bench/compare/v2.0.1...v2.1.0
 [2.0.1]: https://github.com/munich-quantum-toolkit/bench/compare/v2.0.0...v2.0.1
 [2.0.0]: https://github.com/munich-quantum-toolkit/bench/compare/v1.1.9...v2.0.0

pyproject.toml

@@ -32,22 +32,23 @@ dependencies = [
     "scikit-learn>=1.7.2; python_version >= '3.14'",
 ]
 
-
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "Natural Language :: English",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: MacOS",
     "Operating System :: POSIX :: Linux",
+    "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
-    "Intended Audience :: Science/Research",
-    "Natural Language :: English",
     "Topic :: Scientific/Engineering :: Electronic Design Automation (EDA)",
+    "Typing :: Typed",
 ]
 
 [dependency-groups]