danny0405 commented on PR #12164:
URL: https://github.com/apache/hudi/pull/12164#issuecomment-2649700083

   > Where would the latest version be stored? Is it just in memory? If it is 
on storage somewhere, that is defeating the intention of this PR which is to 
avoid IO on cloud storage.
   
   The latest version is updated by each commit, it is a very small file with a 
fixed file name under the timeline folder. The current version is stored in 
memory with the reloaded timeline of course.
   
   IO cost for reading such a small file is negligible.
   
   You can reference the version file of new archived timeline.


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