anchor.diff:  * Un-assign persistent tasks as nodes exit the cluster {pull}37656[#37656]
   
   ZenDiscovery::
  +* Fixing the custom object serialization bug in diffable utils. {pull}39544[#39544]
   * Always return metadata version if metadata is requested {pull}37674[#37674]
   
   
  
positive.code: * Advance max_seq_no before add operation to Lucene {pull}38879[#38879] (issue: {issue}31629[#31629])
  
  Features/Features::
  * Link to 7.0 documentation in deprecation checks {pull}39194[#39194]
  * Handle Null in FetchSourceContext#fetchSource {pull}36839[#36839] (issue: {issue}29293[#29293])
  
  
negative.code: * RecoveryMonitor#lastSeenAccessTime should be volatile {pull}36781[#36781]
  
  SQL::
  * SQL: Don't allow inexact fields for MIN/MAX {pull}39563[#39563] (issue: {issue}39427[#39427])
  * SQL: Fix merging of incompatible multi-fields {pull}39560[#39560] (issue: {issue}39547[#39547])
  * SQL: fix COUNT DISTINCT column name {pull}39537[#39537] (issue: {issue}39511[#39511])
  * SQL: ignore UNSUPPORTED fields for JDBC and ODBC modes in 'SYS COLUMNS' {pull}39518[#39518] (issue: {issue}39471[#39471])
  