v2.12.0 / 2020-04-21

New Features:

• Support for predicate expressions in all transactions.
• Support for operation.delete in client#operate.

Improvements:

• Optimize serialization for nested structures. Thanks to @Kacper Madej! [#94]
• Remove Thread#abort_on_exception from batch_index_command. Thanks to @Kacper Madej! [#92]
• Does not allow values other than Integer, Float, String, Symbol and nil to be used as keys in Maps.

Bug Fixes:

• Fixes tests that weren't using ENV variables for connections. This will allow the tests to be run on any server.