v0.4.4b0

• [Feature] Add EC ElGamal cryptosystem

v0.4.3b3

• [Feature] New api: TreePredictWithIndices support prediction with non-complete
  trees.
• [Feature] New api: Add range check for OU on decryption to block plaintext
  overflow attack
• [Bugfix] Code improve: Make tree pred with indices safer and faster.
• [other] Update libtommath to head version

v0.4.2b0

• [Feature] Modify api: FeatureWiseBucketSum now support cumulative sum option.
• [Feature] Modify public key to string message.

v0.3.2b0

• [Feature/experimental] Add a new PHE algorithm implementation - IPCL. (Thanks to Intel)
  IPCL has very good performance on Intel AVX512-IFMA cpu instruction set and/or Intel QAT accelerator
• [Feature] Add benchmark for numpy api
• [Feature] add pickle support for XXXEncoderParams class
• [Optimize] MPInt serialize is 81x faster and deserialize is 53x faster

v0.3.0b0

• HEU supports a variety of big integer arithmetic libraries now
• PHE algorithms: Add vectorized SPI support
• add phe.parse_schema_type() to parse string to phe.SchemaType
• [Break change] When creating an Encoder instance, you need to pass in schema information, because different schemas may be based on completely different integer operation libraries. Please see upgrade guide doc for details.