MongoDB Documentation, Release 3.0.4 • Changes to allow safe downgrading from v2.6 to v2.4 SERVER-12914$^{746}$, SERVER-12175$^{747}$. • Fixes for edge cases in index creation SERVER-12481$^{748}$, SERVER-12956$^{749}$. • 2.4.10 Changelog (page 878). • All 2.4.10 improvements$^{750}$. • Fix for instances where mongos incorrectly reports a successful write SERVER-12146$^{751}$. • Make non-primary read preferences consistent with slaveOK versioning logic SERVER-11971$^{752}$. • Allow new sharded cluster connections to read from secondaries when primary is down SERVER-7246$^{753}$. • All 2.4.9 improvements$^{754}$. • Increase future compatibility for 2.6 authorization features SERVER-11478$^{755}$. • Fix dbhash cache issue for config servers SERVER-11421$^{756}$. • All 2.4.8 improvements$^{757}$. • Fixed over-aggressive caching of V8 Isolates SERVER-10596$^{758}$. • Removed extraneous initial count during mapReduce SERVER-9907$^{759}$. • Cache results of dbhash command SERVER-11021$^{760}$. • Fixed memory leak in aggregation SERVER-10554$^{761}$. • All 2.4.7 improvements$^{762}$. $^{746}$https://jira.mongodb.org/browse/SERVER-12914 $^{747}$https://jira.mongodb.org/browse/SERVER-12175 $^{748}$https://jira.mongodb.org/browse/SERVER-12481 $^{749}$https://jira.mongodb.org/browse/SERVER-12956 $^{750}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.4.10%22%20AND%20project%20%3D%20SERVER $^{751}$https://jira.mongodb.org/browse/SERVER-12146 $^{752}$https://jira.mongodb.org/browse/SERVER-11971 $^{753}$https://jira.mongodb.org/browse/SERVER-7246 $^{754}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.4.9%22%20AND%20project%20%3D%20SERVER $^{756}$https://jira.mongodb.org/browse/SERVER-11421 $^{755}$https://jira.mongodb.org/browse/SERVER-11478 $^{757}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.4.8%22%20AND%20project%20%3D%20SERVER $^{758}$https://jira.mongodb.org/browse/SERVER-10596 $^{759}$https://jira.mongodb.org/browse/SERVER-9907 $^{760}$https://jira.mongodb.org/browse/SERVER-11021 $^{761}$https://jira.mongodb.org/browse/SERVER-10554 $^{762}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.4.7%22%20AND%20project%20%3D%20SERVER 2.4.7 – October 21, 2013 2.4.8 – November 1, 2013 2.4.9 – January 10, 2014 Chapter 12. Release Notes 882