Prepare for v2.6.1 (#438)

Signed-off-by: yhmo <yihua.mo@zilliz.com>

Author: yhmo

CHANGELOG.md

@@ -1,5 +1,48 @@
 # Changelog
 
+## milvus-sdk-cpp 2.6.1 (2026-01-20)
+### Feature
+- Add CreateSimpleCollectionRequest for quickly creating a simple collection
+- Add Get() interface
+- Compatible with zilliz cloud instance, support connecting with uri
+- Support Multi-language Analyzers
+- Support partial update
+
+### Improvement
+- Pass collection_name/description to CreateCollectionRequest instead of CollectionSchema
+- Pass num_shards to CreateCollectionRequest instead of CollectionSchema
+- DescribeIndex/DropIndex support both field_name and index_name
+- Add multi-vector methods for SearchRequest/SubSearchRequest
+- Refine the request classes to reduce duplicate source code
+- SearchResult can return recalls if enable_recall_calculation is true for zilliz cloud instance
+- Add a method AddTypeParam() for FieldSchema class
+
+### Bug
+- AlterIndexProperties/DropIndexProperties cannot handle field_name, use index_name as input
+- Fix a bug that CreateIndexRequest sync mode is not correctly work to wait index
+- Fix a bug that SearchRequest.AddSparseVector() miss sparse vector when the size is unequal to the first vector
+- Fix a bug that search response might treat collection name as primary key name
+
+## milvus-sdk-cpp 2.5.4 (2026-01-20)
+### Feature
+- Add CreateSimpleCollectionRequest for quickly creating a simple collection
+- Add Get() interface
+- Compatible with zilliz cloud instance, support connecting with uri
+
+### Improvement
+- Pass collection_name/description to CreateCollectionRequest instead of CollectionSchema
+- Pass num_shards to CreateCollectionRequest instead of CollectionSchema
+- DescribeIndex/DropIndex support both field_name and index_name
+- Add multi-vector methods for SearchRequest/SubSearchRequest
+- Refine the request classes to reduce duplicate source code
+- SearchResult can return recalls if enable_recall_calculation is true for zilliz cloud instance
+
+### Bug
+- AlterIndexProperties/DropIndexProperties cannot handle field_name, use index_name as input
+- Fix a bug that CreateIndexRequest sync mode is not correctly work to wait index
+- Fix a bug that SearchRequest.AddSparseVector() miss sparse vector when the size is unequal to the first vector
+- Fix a bug that search response might treat collection name as primary key name
+
 ## milvus-sdk-cpp 2.6.0 (2025-12-22)
 ### Feature
 - Support Int8Vector field

README.md

@@ -16,8 +16,8 @@ The following collection shows Milvus versions and recommended milvus-cpp-sdk ve
 |:-----:|:-----:|
 | 2.3.x | 2.3(branch)  |
 | 2.4.x | v2.4.1  |
-| 2.5.x | v2.5.3  |
-| 2.6.x | v2.6.0  |
+| 2.5.x | v2.5.4  |
+| 2.6.x | v2.6.1  |
 
 
 ## Installation

scripts/build.sh

@@ -25,7 +25,7 @@ MAKE_CLEAN="OFF"
 RUN_FORMAT="ON"
 RUN_CPPLINT="OFF"
 BUILD_COVERAGE="OFF"
-MILVUS_SDK_VERSION=${MILVUS_SDK_VERSION:-v2.6.0}
+MILVUS_SDK_VERSION=${MILVUS_SDK_VERSION:-v2.6.1}
 DO_INSTALL="OFF"
 CMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX:-/usr/local}
 BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS:-ON}