This topic describes the release notes for ApsaraDB for MongoDB in 2021 and provides links to the relevant references.

October 2021

Feature Description Release date Supported region References
Billing of the backup feature in specific regions. The backup feature of ApsaraDB for MongoDB provides a free quota for backup storage space. After the free quota is reached, you are charged on a pay-as-you-go basis. For dedicated cloud-disk instances, you are charged for backup on a pay-as-you-go basis when your consumed storage exceeds 200% of the instance storage capacity. For dedicated local-disk instances, you are charged for backup on a pay-as-you-go basis when your consumed storage exceeds 50% of the instance storage capacity. For more information about the billing method, see ApsaraDB for MongoDB Pricing. 2021-10-14 Paid regions (2)

September 2021

Feature Description Release date Supported region References
MongoDB 5.0 MongoDB 5.0 marks a new release cycle in which new features are delivered to users faster than in the past. The following features are supported:
  • Native time series platform.
  • Live resharding
  • Versioned API.
  • Default majority write concern.
  • Long-running snapshot queries
  • New MongoDB Shell
  • Version release adjustment
  • Management capabilities
 2021-09-28 Supported regions
DynamoDB protocol and read-only nodes Sharded cluster instances support the following features:
  • DynamoDB protocol supported.
  • Quantity selection of read-only nodes when you create a subscription sharded cluster instance.
  • Quantity change of read-only nodes when you change the configurations of a subscription sharded cluster instance.
2021-09-28 All Create a sharded cluster instance
MongoDB 4.4 MongoDB 4.4 is comprehensively improved from previous versions. It addresses specific key issues in MongoDB. The following section lists the main issues:
  • Write performance degradation when a large number of indexes are maintained in databases.
  • Slow page response.
  • Latency in primary/secondary replication.
  • Asynchronous creation of indexes on the primary and secondary databases.
  • Management capabilities
 2021-09-26 Supported regions
Billing of the ApsaraDB for MongoDB backup features in some regions The backup feature of ApsaraDB for MongoDB provides a free quota for backup storage space. After the free quota is reached, you are charged on a pay-as-you-go basis. Dedicated cloud-disk instances: unset. For dedicated local-disk instances, you are charged for backup on a pay-as-you-go basis when your consumed storage exceeds 50% of the instance storage capacity.ApsaraDB for MongoDB Pricing. 2021-09-23 Billing region (1)
Batch additon of mongos or shard nodes You can batch add mongos or shard nodes for ApsaraDB for MongoDB sharded cluster instances.
Note You can add a maximum of 32 mongos or shard nodes for each ApsaraDB for MongoDB sharded cluster instance. To add more than 32 mongos or shard nodes to a sharded cluster instance, submit a ticket. For more information, see submit a ticket.
2021-09-16 All
Update of backup features in ApsaraDB for MongoDB The following backup features are updated for ApsaraDB for MongoDB:
  • Custom backup retention period
  • Backup frequency
  • Enable or disable log backup feature
 2021-09-10 All

July 2021

Feature Description Release date Supported region References
The configurations of multiple mongos and shard nodes can be changed for ApsaraDB for MongoDB sharded cluster instances. You can change the configurations of multiple mongos and shard nodes at the same time for ApsaraDB for MongoDB sharded cluster instances. The following configuration changes are supported:
  • The specifications of multiple mongos nodes can be changed.
  • The specifications, storage capacity, and number of read-only nodes of multiple shard nodes can be changed.
    Note The number of read-only nodes can be changed only for subscription sharded cluster instances.
2021-07-08 All

May 2021

Feature Description Release date Supported region References
Manual release of mongos and shard nodes Mongos and shard nodes can be manually released for ApsaraDB for MongoDB sharded cluster instances. The following rules apply:
  • You can manually release a mongos node for a sharded cluster instance that has at least three mongos nodes.
  • You can manually release a shard node for a sharded cluster instance that has at least three shard nodes.
2021-05-08 All Release an instance or a node

More features

For more information, see Product Updates.