anchor.diff:  Stats::
   * Add os.allocated_processors stats {pull}14409[#14409] (issue: {issue}13917[#13917])
   * Adds stats counter for failed indexing requests {pull}13130[#13130] (issue: {issue}8938[#8938])
  -* Sort thread pools by name in Nodes Stats {pull}13121[#13121]
  -* Expose shards data and state path via ShardStats {pull}13118[#13118] (issue: {issue}13106[#13106])
  -* Refactor, remove _node/network and _node/stats/network.  {pull}12922[#12922] (issue: {issue}12889[#12889])
  -
  -Warmers::
  -* Warmers delete _all should not throw exception when no warmers {pull}13058[#13058] (issue: {issue}8991[#8991])
  +
   
   
   [[bug-2.1.0]]
  
positive.code: * Added correct generic type parameter on ScriptedMetricBuilder {pull}14018[#14018] (issue: {issue}13986[#13986])
  * Pipeline Aggregations at the root of the agg tree are now validated {pull}13475[#13475] (issue: {issue}13179[#13179])
  * Estimate HyperLogLog bias via k-NN regression {pull}13243[#13243]
  * GeoDistance Aggregation now prints field name when it finds an unexpected token. {pull}13033[#13033] (issue: {issue}12391[#12391])
  
  Allocation::
  * Fix calculation of next delay for delayed shard allocation {pull}14765[#14765]
  
negative.code: * Adds disk used by indices to _cat/allocation {pull}13783[#13783] (issue: {issue}13529[#13529])
  
  Core::
  * Verify Checksum once it has been fully written to fail as soon as possible {pull}13896[#13896]
  
  Exceptions::
  * Deduplicate cause if already contained in shard failures {pull}14432[#14432]
  * Give a better exception when running from freebsd jail without enforce_statfs=1 {pull}14135[#14135] (issue: {issue}12018[#12018])
  * Make root_cause of field conflicts more obvious {pull}13976[#13976] (issue: {issue}12839[#12839])
  * Use a dedicated id to serialize EsExceptions instead of it's class name. {pull}13629[#13629]
  * Validate class before cast. {pull}12913[#12913] (issue: {issue}12842[#12842])
  *  Improve error message of ClassCastExceptions  {pull}12821[#12821] (issue: {issue}12135[#12135])
  
  Geo::
  * Refactor geo_point validate* and normalize* for 2.x {pull}12742[#12742] (issues: {issue}10170[#10170], {issue}12300[#12300])
  
  Index APIs::
  