Pymilvus

**Release date**: 2022-02-23

Features:

- Support secure gRPC channel for AWS (894)

Fixed bugs:

- Fix string consistency level not work (896)
- Fix partition unable to delete bug (879)

Enhancements:

- Speed up pack operation on float vector (898)

Along with Milvus 2.0.0, we are so glad to announce the release of PyMilvus 2.0.0.

From this version, PyMilvus's releases will no longer follow the release of Milvus. We'll focus on improving the codes quality and ease-of-use, and of course, support for new features from Milvus.

As for PyMilvus 2.0.0, there are some exciting news we want to share with you.

A. 1.x APIs (for Milvus 1.x) and orm-styled APIs (for Milvus 2.x) are *finally physically separated*.

For the convenience of the Milvus 1.x users, we had reserved PyMilvus 1.x APIs within all release-candidates versions of PyMilvus. Now it's time to say goodbye to those 1.x APIs if you're using Milvus 2.0.0.

> Note: 1.x APIs means the usage of `Milvus()` class.

Here's why:

- 1.x APIs won't be supported for Milvus 2.0.0 in long term.
- No documentations were provided concerning 1.x API usage on Milvus 2.0.0.

The mixed usage of the 1.x APIs and the orm-styled APIs is not recommended, **but you still can use 1.x APIs for Milvus 2.0.0 in PyMilvus2.0.0**.

Here's what we've done to avoid the mixed usage:

1. Separate the 1.x APIs and the orm-styled APIs completely. Now you cannot get a `Milvus` object through the orm-styled APIs.
2. Mark `Milvus` class as **deprecated**. There'll be a warning every time you try to use 1.x `Milvus` class on Milvus 2.0.0.
3. `Flush` in Milvus 2.0.0 refers to a completely different method. Whereas reads and writes are completely separated in Milvus 2.0.0, you don't need to flush to make the entity searchable by query node. Instead, consistency level is what you need to worry about.

**If you encounter any problems while upgrading PyMilvus to 2.0.0, don't worry, it's just a few steps away, and we're always here to help. Here're some tips:**

- If you want to use the 1.x APIs on Milvus 2.0.0, just init `Milvus()` class and you are good to go.

> Note: There is no documentation elaborating the usage of the 1.x APIs on Milvus 2.0.0, and we're planning to remove these APIs in the next release of PyMilvus.

- If you're unaware of the mixed usage of these two sets of APIs, please refer to [Milvus.io](https://milvus.io/docs/v2.0.0/example_code.md) or `examples/hello_milvus.py` in PyMilvus GitHub repository for the correct usages.
- If you want to use any of the 1.x APIs that is unavailable in orm-styled APIs, let us know. We'll be happy to support it in future releases.

B. Support delete

C. Consistency level

**Release date**: 2021-12-31



Fixed bugs:

- Fix hello milvus (829)

- Check parameters related to guarantee_timestamp (826)



Enhancements:

- Add a English version of contributing_cn.md (849)
- Add hellomilvus in jupyter notebook (848)
- Support guarantee_timestamp and travel_timestamp for query (847)
- Support configure the consistency level (845)
- Enable get git commit for a given version (839)
- Move aliases operations into utility (841)
- Add utility functions to make hybrid timestamp (831)
- Rewrite the example.py (789)
- Enhance pymilvus proto generating procedure (806)
- Enable delete function (803)

Release date：2021-11-1

Fixed bugs:
- Fix check_pass_param check for ndarray (756)
- Improve client.check (743)
- Fix check limit error (760)
- Fixed all buggy instances of exception raises doc (792)

Enhancements:
- Converting for loops to list comprehensions (746)
- Expose guarantee_timestamp of search api (ref: 666) (753)
- Add github issue forms (742)
- Add util to calculate timestamp (759)
- Make gt avaliable (761)
- Remove docs/draft file (771)
- Add travel_timestamp parameter to search method (773)
- Remove examples/connections.py (776)
- Add get_query_segment_info (772)
- Throw exception when delete with invalid partition name (780)
- Remove insert request hash values (782)
- Skip validation check when partition name is None (783)
- Get query segment info from specified collection (785)
- Return segment state when get query segment info (786)
- Update milvus_pb2.py after update milvus.proto (787)
- Add repr in connection record (790)
- Check the travel timestamp (793)

**Release date**：2021-10-11


Fixed bugs:

- Fix nightly-ci schedule (711)
- Fix 7613 (713)


Enhancements:

- Update SchemaNotReady exception msg when collection not exist (706)
- Support _async paramter for Load() interfance (708)
- Implement alias api (720)
- Change startup logic: wait enough time for server healthy (730)
- For search funtion adding a round_decimal paramter to precision control
- Add __str__ methods to orm searchresult and hits
- For old style search function also adding a round decimal paramter
- Rename search_with_expression to search

**Release date**：2021-09-10


Fixed bugs:

- Fix Milvus init error (695)
- Make wait for healthy timeout controllable (681)
- Fix not runnable examples (680)
- Raise error if connect after closing connection (678)
- Change value of standalone deployment key to keep same as server. (691)
- Remove retry logic when drop collection with deadline error (673)


Enhancements:

- Remove check connect (699)
- Test existing collection (692)