MySQL Workbench 6.3 (Mac) hangs on simple queries

Question

I am using MySQL Workbench 6.3.7 build 1199 CE (64 bits) on a Mac with OS X Yosemite 10.10.5. I am connecting to an Amazon RDS MySQL instance.

When I enter a simple

Answer 1

Upgrade to 6.3.9 fixed the issue. The 6.3.4 was hanging on queries for me. Unfortunately the Help > Check for Updates didn't indicate any updates were available, so I went to the source.