Update CHANGELOG and version.

Author: fabiocaccamo

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.12.0](https://github.com/fabiocaccamo/python-codicefiscale/releases/tag/0.12.0) - 2026-04-17
+-   Add `firstname_options` field to `decode()` output with list of possible Italian first names. (#253)
+-   Add lazy loading optimization for indexed data with global caching.
+-   Bump requirements.
+
 ## [0.11.4](https://github.com/fabiocaccamo/python-codicefiscale/releases/tag/0.11.4) - 2026-04-12
 -   Add missing country data. #249
 -   Update municipalities data.

src/codicefiscale/metadata.py

@@ -7,4 +7,4 @@
 __email__ = "fabio.caccamo@gmail.com"
 __license__ = "MIT"
 __title__ = "codicefiscale"
-__version__ = "0.11.4"
+__version__ = "0.12.0"