Github user anew commented on the issue:
https://github.com/apache/incubator-tephra/pull/68
@apurtell Is this a 1:1 copy of the hbase-1.3 compat module? Or is there an
API change that requires code change in the tephra module? If 1.4 is API
compatible with 1.3, we can simply add support for 1.4 by adding a rule to
HBaseVersion.java and use the 1.3 compat module if the HBase version string
starts with "1.4"---
