prepare release.

Author: suketa

CHANGELOG.md

@@ -3,6 +3,8 @@
 All notable changes to this project will be documented in this file.
 
 # Unreleased
+
+# 1.5.5.0 - 2026-03-15
 - bump duckdb to 1.5.0 on CI.
 
 ## Breaking changes

Dockerfile

@@ -1,7 +1,7 @@
 ARG RUBY_VERSION=4.0.1
 FROM ruby:${RUBY_VERSION}
 
-ARG DUCKDB_VERSION=1.4.4
+ARG DUCKDB_VERSION=1.5.0
 ARG VALGRIND_VERSION=3.21.0
 
 RUN apt-get update -qq && \

lib/duckdb/version.rb

@@ -3,5 +3,5 @@
 module DuckDB
   # The version string of ruby-duckdb.
   # Currently, ruby-duckdb is NOT semantic versioning.
-  VERSION = '1.4.4.0'
+  VERSION = '1.5.0.0'
 end