Hello Daniel,
I have to admit, as all SG versions for ES 6.5.x have reached end of life since quite a while, it is quite unlikely that there will be a patch release.
However, if zjsonpatch 0.4.5 just fixes bugs and does not change APIs and contracts, it should be indeed possible to just replace the JAR file:
- Go to
your/es/installation/plugins/search-guard - Delete
zjsonpatch-0.4.4.jar - Download
zjsonpatch-0.4.5.jar(for example from https://mvnrepository.com/artifact/com.flipkart.zjsonpatch/zjsonpatch/0.4.5 ) and copy to toyour/es/installation/plugins/search-guard - Restart ES
- Repeat for all nodes
Of course, you’d need to do your own testing. Also, you should be conservative regarding the newer version, i.e. really just choose 0.4.5 if it fixes the problem and not any newer versions of zjsonpatch.
Hope that helps.