Merge pull request #150 from igerber/version-bump-2-3-1

Bump version to 2.3.1

Author: igerber

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [2.3.1] - 2026-02-15
 
 ### Fixed
 - Fix docs/PyPI version mismatch (issue #146) — RTD now builds versioned docs from source
@@ -700,6 +700,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - `to_dict()` and `to_dataframe()` export methods
   - `is_significant` and `significance_stars` properties
 
+[2.3.1]: https://github.com/igerber/diff-diff/compare/v2.3.0...v2.3.1
 [2.3.0]: https://github.com/igerber/diff-diff/compare/v2.2.1...v2.3.0
 [2.2.1]: https://github.com/igerber/diff-diff/compare/v2.2.0...v2.2.1
 [2.2.0]: https://github.com/igerber/diff-diff/compare/v2.1.9...v2.2.0

diff_diff/__init__.py

@@ -142,7 +142,7 @@
     load_mpdta,
 )
 
-__version__ = "2.3.0"
+__version__ = "2.3.1"
 __all__ = [
     # Estimators
     "DifferenceInDifferences",

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "diff-diff"
-version = "2.3.0"
+version = "2.3.1"
 description = "A library for Difference-in-Differences causal inference analysis"
 readme = "README.md"
 license = "MIT"

rust/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "diff_diff_rust"
-version = "2.3.0"
+version = "2.3.1"
 edition = "2021"
 description = "Rust backend for diff-diff DiD library"
 license = "MIT"