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The following page has been changed by izaakrubin:
http://wiki.apache.org/hadoop/Hbase/Plan-0%2e2/APIChanges

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  `startUpdate(Text)` was used to start an atomic row update on the passed row 
name, and a "lock id" (`long`) was returned to identify the update.  `put(...)` 
and `delete(...)` could be called using the lock id, and any changes made with 
that lock id could be aborted or committed.
  
- HBase 0.2 has completely changed the way in which atomic row updates take 
place.  To update a row, the user first creates a `BatchUpdate` object (new to 
0.2, package `org.apache.hadoop.hbase.io`).  `put(...)` and `delete(...)` 
operations are applied to the `BatchUpdate`, not the `HTable`.  Once finished, 
the user commits the `BatchUpdate` with one of the following new `HTable` 
methods:
+ HBase 0.2 has completely changed the way in which atomic row updates take 
place.  To update a row, the user first creates a `BatchUpdate` object.  
`put(...)` and `delete(...)` operations are applied to the `BatchUpdate`, not 
the `HTable`.  Once finished, the user commits the `BatchUpdate` with one of 
the following new `HTable` methods:
  
  ''0.2:''
  [[BR]] {{{public synchronized void commit(BatchUpdate);}}}

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