Merge pull request #52 from igerber/claude/prepare-v1.3-release-Np8dK

Prepare codebase for v1.3 release

Author: igerber

diff_diff/__init__.py

@@ -103,7 +103,7 @@
     plot_sensitivity,
 )
 
-__version__ = "1.2.1"
+__version__ = "1.3.1"
 __all__ = [
     # Estimators
     "DifferenceInDifferences",

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "diff-diff"
-version = "1.3.0"
+version = "1.3.1"
 description = "A library for Difference-in-Differences causal inference analysis"
 readme = "README.md"
 license = "MIT"