# dbt Core v1.9.1 — Release & Upgrade Intelligence
- **Product:** dbt Core (https://www.getdbt.com)
- **Version:** v1.9.1
- **Released:** Dec 16, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/dbt-core/updates/v1.9.1/

## Executive Summary (TL;DR)
dbt Core v1.9.1. Source highlight: dbt-core 1.9.1 - December 16, 2024

## Bug Fixes
- update adapter version messages (#10230)
- Fix debug log messages for microbatch batch execution information (#11111)
- Fix running of extra "last" batch when there is only one batch (#11112)
- Fix interpretation of `PartialSuccess` to result in non-zero exit code (#11114)
- Warn about invalid usages of `concurrent_batches` config (#11122)