5.0.0 / 2022-01-20

(dev) Add tests on Python 3.7 to 3.9 (#71)
(dev) Track poetry.lock (#71)
(BREAKING) Drop Python 2 support (#71)
Raise exception if no encryption type is specified (#70)
Support SHA256, SHA384 hash algorithm (@jackydo, #67)
Fix errors for unencrypted documents
Use absolute imports (#63)

4.12.0 / 2021-06-04

Use custom exceptions (#59)
(dev) Remove nose (thank you) (#57)
(dev) Use poetry (#55)

4.11.0 / 2020-09-03

Improve hash calculation (suggested by @StanislavNikolov)
Add "verify_passwd" and "verify_integrity" option (@jeffli678)
Make _packUserEditAtom spec-compliant

4.10.2 / 2020-04-08

Update _makekey in rc4_cryptoapi (@doracpphp)
Fix handling of optional field value in ppt97
Add tests for is_encrypted() (--test)
Make Doc97File.is_encrypted() return boolean