Version v2.12.2

Author: fangnx

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Confluent Python Client for Apache Kafka - CHANGELOG
 
+## v2.12.2 - 2025-11-06
+v2.12.2 is a maintenance release with the following change:
+
+### Schema Registry Client
+- Handled evolution during field transformation
+- Changed `Accept-Version` to `Confluent-Accept-Unknown-Properties` in request header
+
 ## v2.12.1 - 2025-10-21
 
 v2.12.1 is a maintenance release with the following fixes:
@@ -134,7 +141,7 @@ confluent-kafka-python v2.8.2 is based on librdkafka v2.8.0, see the
 [librdkafka release notes](https://github.com/confluentinc/librdkafka/releases/tag/v2.8.0)
 for a complete list of changes, enhancements, fixes and upgrade considerations.
 
-Note: Versioning is skipped due to breaking change in v2.8.1. 
+Note: Versioning is skipped due to breaking change in v2.8.1.
 Do not run software with v2.8.1 installed.
 
 
@@ -166,7 +173,7 @@ We apologize for the inconvenience and appreciate the feedback that we have gott
 
 v2.6.2 is a feature release with the following features, fixes and enhancements:
 
-Note: This release modifies the dependencies of the Schema Registry client. 
+Note: This release modifies the dependencies of the Schema Registry client.
 If you are using the Schema Registry client, please ensure that you install the
 extra dependencies using the following syntax:
 
@@ -246,15 +253,15 @@ for a complete list of changes, enhancements, fixes and upgrade considerations.
 ## v2.5.0 - 2024-07-10
 
 > [!WARNING]
-This version has introduced a regression in which an assert is triggered during **PushTelemetry** call. This happens when no metric is matched on the client side among those requested by broker subscription. 
+This version has introduced a regression in which an assert is triggered during **PushTelemetry** call. This happens when no metric is matched on the client side among those requested by broker subscription.
 >
 > You won't face any problem if:
 > * Broker doesn't support [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability).
 > * [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability) feature is disabled on the broker side.
 > * [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability) feature is disabled on the client side. This is enabled by default. Set configuration `enable.metrics.push` to `false`.
 > * If [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability) is enabled on the broker side and there is no subscription configured there.
 > * If [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability) is enabled on the broker side with subscriptions that match the [KIP-714](https://cwiki.apache.org/confluence/display/KAFKA/KIP-714%3A+Client+metrics+and+observability) metrics defined on the client.
-> 
+>
 > Having said this, we strongly recommend using `v2.5.3` and above to not face this regression at all.
 
 v2.5.0 is a feature release with the following features, fixes and enhancements:
@@ -628,4 +635,3 @@ v1.5.0 is a maintenance release with the following fixes and enhancements:
 confluent-kafka-python is based on librdkafka v1.5.0, see the
 [librdkafka release notes](https://github.com/edenhill/librdkafka/releases/tag/v1.5.0)
 for a complete list of changes, enhancements, fixes and upgrade considerations.
-

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "confluent-kafka"
-version = "2.12.1"
+version = "2.12.2"
 description = "Confluent's Python client for Apache Kafka"
 classifiers = [
     "Development Status :: 5 - Production/Stable",

requirements/requirements-rules.txt

@@ -2,6 +2,8 @@ azure-identity
 azure-keyvault-keys
 boto3>=1.35
 cel-python>=0.4.0
+# Pin google-re2 to last version with Python 3.9 wheels (see https://pypi.org/project/google-re2/1.1.20251105/#files)
+google-re2<1.1.20251105
 google-auth
 google-api-core
 google-cloud-kms

src/confluent_kafka/src/confluent_kafka.h

@@ -38,7 +38,7 @@
 /**
  * @brief confluent-kafka-python version, must match that of pyproject.toml.
  */
-#define CFL_VERSION_STR "2.12.1"
+#define CFL_VERSION_STR "2.12.2"
 
 /**
  * Minimum required librdkafka version. This is checked both during