<commit_before># Changelog

## Version 21.01

**Features**:

+ Remove HDF5 format support.

**Development**:

+ Remove H5Py requirement.
+ Support PEP 517. (#42)
+ Remove entry point.
+ Remove submodule.

## Version 20.12

**Features**:

+ Fix joint merging function. (#43)
+ Fix infinity loop of solver. (#44)
+ Add pickle format. (#45)
+ Enhance "Remove empty links" function. ("Remove redundant links")

**Development**:

+ None.
<commit_msg>Update changelog.<commit_after># Changelog

## Version 21.01

**Features**:

+ Remove HDF5 format support.

**Development**:

+ Remove H5Py requirement.
+ Support PEP 517. (#42)
+ Remove entry point.
+ Remove submodule.
+ Remove Makefile.

## Version 20.12

**Features**:

+ Fix joint merging function. (#43)
+ Fix infinity loop of solver. (#44)
+ Add pickle format. (#45)
+ Enhance "Remove empty links" function. ("Remove redundant links")

**Development**:

+ None.

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{'dir': 'git-commits-cleaned', 'id': '1630014', 'n_tokens_mistral': 350, 'n_tokens_neox': 291, 'n_words': 103}