MongoDB Documentation, Release 3.0.4 • Check the size of the split point before performing a manual split chunk operation SERVER-14431 649 • Ensure read preferences are re-evaluated by drawing secondary connections from a global pool and releasing back to the pool at the end of a query/command SERVER-9788 650 • Allow read from secondaries when both audit and authorization are enabled in a sharded cluster SERVER- 14170 651 • All issues closed in 2.6.4 652 • Equality queries on _id with projection may return no results on sharded collections SERVER-14302$^{653}$. • Equality queries on _id with projection on _id may return orphan documents on sharded collections SERVER- 14304$^{654}$. • All issues closed in 2.6.3$^{655}$. • Query plans with differing performance can tie during plan ranking SERVER-13675$^{656}$. • mongod may terminate if x.509 authentication certificate is invalid SERVER-13753$^{657}$. • Temporary map/reduce collections are incorrectly replicated to secondaries SERVER-13981$^{658}$. • mongos incorrectly targets multiple shards for nested field shard key predicates SERVER-14138$^{659}$. • rs.stepDown() during mapReduce causes fassert when writing to op log SERVER-14186$^{660}$. • All issues closed in 2.6.2$^{661}$. • Fix to install MongoDB service on Windows with the --install option SERVER-13515$^{662}$. • Allow direct upgrade from 2.4.x to 2.6.0 via yum SERVER-13563$^{663}$. • Fix issues with background index builds on secondaries: SERVER-13589 664 and SERVER-13620$^{665}$. • Redact credential information passed as startup options SERVER-13644$^{666}$. 2.6.2 – June 16, 2014 2.6.1 – May 5, 2014 2.6.3 – June 19, 2014 $^{649}$https://jira.mongodb.org/browse/SERVER-14431 $^{650}$https://jira.mongodb.org/browse/SERVER-9788 $^{651}$https://jira.mongodb.org/browse/SERVER-14170 $^{652}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.4%22%20AND%20project%20%3D%20SERVER $^{653}$https://jira.mongodb.org/browse/SERVER-14302 $^{654}$https://jira.mongodb.org/browse/SERVER-14304 $^{655}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.3%22%20AND%20project%20%3D%20SERVER $^{656}$https://jira.mongodb.org/browse/SERVER-13675 $^{657}$https://jira.mongodb.org/browse/SERVER-13753 $^{658}$https://jira.mongodb.org/browse/SERVER-13981 $^{659}$https://jira.mongodb.org/browse/SERVER-14138 $^{660}$https://jira.mongodb.org/browse/SERVER-14186 $^{661}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.2%22%20AND%20project%20%3D%20SERVER $^{662}$https://jira.mongodb.org/browse/SERVER-13515 $^{663}$https://jira.mongodb.org/browse/SERVER-13563 $^{664}$https://jira.mongodb.org/browse/SERVER-13589 $^{665}$https://jira.mongodb.org/browse/SERVER-13620 $^{666}$https://jira.mongodb.org/browse/SERVER-13644 Chapter 12. Release Notes 850