- update to 3.9.7:
* GH#381: Make notarization possible again on OS X when using wheels.
Thanks to Colin Atkinson.
* RSA OAEP decryption was not verifying that all ``PS`` bytes are zero.
* GH#372: fixed memory leak for operations that use memoryviews when `cffi` is not installed.
* Fixed wrong ASN.1 OID for HMAC-SHA512 in PBE2.
* GH#341: Prevent ``key_to_english`` from creating invalid data when fed with
keys of length not multiple of 8. Thanks to vstoykovbg.
* GH#347: Fix blocking RSA signing/decryption when key has very small factor.
Thanks to Martijn Pieters.
* GH#308: Align stack of functions using SSE2 intrinsics to avoid crashes,
when compiled with gcc on 32-bit x86 platforms.