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v2.6.17

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fix: [cp2.6] revert nullable vector support (#49838)

## Summary
- Revert the 2.6 nullable vector support backport from #49520.
- Restore the previous 2.6 behavior while the nullable vector support is
not ready on this branch.
- Format the changed Python test files and add file-level Ruff
suppressions for legacy star-import tests touched by the revert.

pr: #46305
issue: #49470

## Test plan
- [x] `ruff check $(git diff --name-only --diff-filter=ACMR
upstream/2.6...HEAD -- tests/**/*.py)`
- [x] `ruff format --check --diff $(git diff --name-only
--diff-filter=ACMR upstream/2.6...HEAD -- tests/**/*.py)`
- [x] `git diff --check`

Signed-off-by: marcelo-cjl <marcelo.chen@zilliz.com>

pkg/v2.6.17

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fix: [cp2.6] revert nullable vector support (#49838)

## Summary
- Revert the 2.6 nullable vector support backport from #49520.
- Restore the previous 2.6 behavior while the nullable vector support is
not ready on this branch.
- Format the changed Python test files and add file-level Ruff
suppressions for legacy star-import tests touched by the revert.

pr: #46305
issue: #49470

## Test plan
- [x] `ruff check $(git diff --name-only --diff-filter=ACMR
upstream/2.6...HEAD -- tests/**/*.py)`
- [x] `ruff format --check --diff $(git diff --name-only
--diff-filter=ACMR upstream/2.6...HEAD -- tests/**/*.py)`
- [x] `git diff --check`

Signed-off-by: marcelo-cjl <marcelo.chen@zilliz.com>

v2.6.16

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fix: [2.6] fix build bug for json stats with lack-of-binlog (#49673)

pr: #49249

Signed-off-by: luzhang <luzhang@zilliz.com>
Co-authored-by: luzhang <luzhang@zilliz.com>

pkg/v2.6.16

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fix: [2.6] fix build bug for json stats with lack-of-binlog (#49673)

pr: #49249

Signed-off-by: luzhang <luzhang@zilliz.com>
Co-authored-by: luzhang <luzhang@zilliz.com>

v3.0-beta

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build(deps): update 3.0 GPU build env to CUDA 12.9 (#49589)

pr: #49514 

## What
- Update the 3.0 GPU build env tag to 20260506-b5f57d9.
- Align the GPU build environment with master PR #49514, which moved GPU
images to CUDA 12.9.

## Why
- The v3.0-beta GPU release image build still used
gpu-ubuntu22.04-20260419-63b9f9f with CUDA 11.8.
- That build env fails CMake CUDA compiler checks requiring CUDA20.

## Test
- git diff --check

Signed-off-by: Zhikun Yao <zhikun.yao@zilliz.com>

pkg/v3.0-beta

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fix: [3.0] keep legacy ngram index files compatible (#49573)

issue: #46813
pr: #49572

Signed-off-by: Buqian Zheng <zhengbuqian@gmail.com>

client/v2.6.4

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enhance: Cherry-pick prs & bump client version to v2.6.4 (#49443)

Complete Go SDK struct-array support for scalar and vector sub-fields,
including ArrayOfVector columns, EmbeddingList search vectors, schema
validation, and safer insert/upsert request construction. Preserve the
SDK's default gRPC dial options when users provide custom DialOptions,
add gRPC authority configuration support, and bump SDKVersion to 2.6.4.

Key changes:
- Add vector-array column types for struct sub-fields: FloatVector,
  Float16Vector, BFloat16Vector, BinaryVector, and Int8Vector.
- Add EmbeddingList search vector types and dispatch them to the
matching
  PlaceholderType_EmbList* values.
- Add WithStructArrayColumn for column-based insert/upsert options, with
deferred error reporting through InsertRequest/UpsertRequest instead of
  panics during builder chaining.
- Validate struct-array schemas before CreateCollection and reject
invalid
nested array/struct fields, top-level-only flags, nullable/default
values,
  duplicate sub-fields, and unsupported sparse vector sub-fields.
- Fix struct-array schema proto round trips, max_capacity propagation,
  ArrayOfVector decoding, sub-field length checks, and atomic row append
  rollback on partial failures.
- Always apply DefaultGrpcOpts before user DialOptions so keepalive,
  backoff, and MaxRecvMsgSize defaults are retained.
- Bump Go SDK version from 2.6.3 to 2.6.4.

Related issues: #49163, #48828
pr: #49164 
pr: #49186

---------

Signed-off-by: Li Liu <li.liu@zilliz.com>
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>
Co-authored-by: Li Liu <105927039+liliu-z@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: zhuwenxing <wenxing.zhu@zilliz.com>

v2.6.15

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enhance: Bump milvus & proto to v2.6.15 (#49068)

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

pkg/v2.6.15

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enhance: Bump milvus & proto to v2.6.15 (#49068)

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>

v2.6.14

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enhance: Bump milvus & proto to v2.6.14 (#48727)

Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>