MongoDB Documentation, Release 3.0.4 2.6.10 – May 19, 2015 2.6.9 – March 24, 2015 2.6.8 – February 25, 2015 2.6.7 – January 13, 2015 • Decreased mongos memory footprint when shards have several tags SERVER-16683 631 • Removed check for shard version if the primary server is down SERVER-16237 632 • All issues closed in 2.6.8 630 • Query optimizer should always use equality predicate over unique index when possible SERVER-15802 629 • Secondary fasserts trying to replicate an index SERVER-16274 628 • copydb / clone commands can crash the server if a primary steps down SERVER-16599 627 • Add listCollections command functionality to 2.6 shell and client SERVER-17087 626 • Resolve connection handling related crash with mongos instances SERVER-17441 621 • Add server parameter to configure idle cursor timeout SERVER-8188 622 • Remove duplicated (orphan) documents from aggregation pipelines with _id queries in sharded clusters SERVER-17426 623 • Fixed crash in geoNear queries with multiple 2dsphere indexes SERVER-14723 624 • All issues closed in 2.6.9 625 • All issues closed in 2.6.10 620 • Fix to query system to ensure non-negation predicates get chosen over negation predicates for multikey index bounds construction SERVER-18364 619 • Allow user inserts into the system.profile collection SERVER-18211 618 • Provide correct rollbacks for collection creation SERVER-18211 617 • Improve user cache invalidation enforcement on mongos SERVER-11980 616 $^{616}$https://jira.mongodb.org/browse/SERVER-11980 $^{617}$https://jira.mongodb.org/browse/SERVER-18211 $^{618}$https://jira.mongodb.org/browse/SERVER-18211 $^{619}$https://jira.mongodb.org/browse/SERVER-18364 $^{620}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.10%22%20AND%20project%20%3D%20SERVER $^{621}$https://jira.mongodb.org/browse/SERVER-17441 $^{622}$https://jira.mongodb.org/browse/SERVER-8188 $^{623}$https://jira.mongodb.org/browse/SERVER-17426 $^{624}$https://jira.mongodb.org/browse/SERVER-14723 $^{626}$https://jira.mongodb.org/browse/SERVER-17087 $^{625}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.9%22%20AND%20project%20%3D%20SERVER $^{627}$https://jira.mongodb.org/browse/SERVER-16599 $^{628}$https://jira.mongodb.org/browse/SERVER-16274 $^{629}$https://jira.mongodb.org/browse/SERVER-15802 $^{630}$https://jira.mongodb.org/issues/?jql=fixVersion%20%3D%20%222.6.8%22%20AND%20project%20%3D%20SERVER $^{631}$https://jira.mongodb.org/browse/SERVER-16683 $^{632}$https://jira.mongodb.org/browse/SERVER-16237 Chapter 12. Release Notes 848