The release notes mention:
* Match length operator (http://yara.readthedocs.io/en/v3.5.0/writingrules.html#match-length)
* Performance improvements
* Less memory consumption while scanning processes
* Exception handling when scanning memory blocks
* Negative integers in meta fields
* Added the --stack-size command-argument
* Functions import_ordinal, is_dll, is_32bit and is_64bit added to PE module
* Functions rich_signature.toolid and rich_signature.version added to PE module
* Lots of bug fixes
The Python bindings are now released from a different tree, with the same
versioning apparently though.
"welcome to update" pettai@