I'm getting the following exception when I use python binding. I thought client binding apis are backward compatible. If not how/where can I get the python library corresponding to the version 610
fdb.api_version(610)
File "/usr/local/lib/python2.7/dist-packages/fdb/__init__.py", line 76, in api_version
"%d, but the installed library supports a maximum version of %d." % (header_version, max_supported_ver))
RuntimeError: This version of the FoundationDB Python binding is not supported by the installed FoundationDB C library. The binding requires a library that supports API version 620, but the installed library supports a maximum version of 610.