Subject: Need  to apply patch HBASE-8163 on Hbase 1.4.10

Hi ,

I want to use MSLAB feature on Hbase 1.4.10, I checked the useage HBASE-8163 ( as bellow  , it was  fixed 0.98.0, 0.95.0 and whether need to apply it on Hbase 1.4.10 ?

Disable pool(default): configure "hbase.hregion.memstore.chunkpool.maxsize" as 0
Enable pool: configure "hbase.hregion.memstore.chunkpool.maxsize" as a percentage of global memstore size (between 0.0 and 1.0, recommend to set it as the gap between min and max sizes of memstore, e.g. 0.5)
Hbase DOC:

If you have a write-heavy workload, check out HBASE-8163 MemStoreChunkPool: An improvement for JAVA GC when using MSLAB<>. It describes configurations to lower the amount of young GC during write-heavy loadings. If you do not have HBASE-8163 installed,
Question :
1. Need to apply HBASE-8163 on Hbase 1.4.10 ?
2. How to check out HBASE-8163 is installed on Hbase 1.4.10 bin vaersion?