How to determine the SOA Suite MLR version?

There are many ways to determine the MLR (SOA Bundle Patchsets - Merge Label Request) version of the SOA Suite, here are three ways to find your servers MLR version:
1. Go to $SOA_HOME/bpel/bin and run obversion.sh
./obversion.sh
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Oracle BPEL Server version 10.1.3.4.0
  Build: 0
  Build time: Sun Mar 07 17:51:49 PST 2010
  Build type: release
  Source tag: PCBPEL_10.1.3.4.0MLR10_GENERIC_RELEASE
2. Similarly, you can see this same information in the $SOA_HOME/bpel/domains/<domain_name>/logs/domain.log OR $SOA_HOME/opmn/logs/default_group~<container_name>~default_group~1.log file. Upon startup, the log file will contain the build information and MLR number entries similar to the output above.
3. Third way, look for the patches in opatch lsinventory: OPatch/opatch lsinventory |egrep '8372150|8589928|9317334'
Patch 8372150: TRACKING BUG FOR CUMULATIVE MLR#8 ON TOP OF 10.1.3.4.0
Patch 8589928: TRACKING BUG FOR CUMULATIVE MLR#9 ON TOP OF 10.1.3.4.0
Patch 9317334: TRACKING BUG FOR CUMULATIVE MLR#10 ON TOP OF 10.1.3.4.0