The MongoDB Node.js team is pleased to announce version 3.6.0 of the driver
NOTE: This version begins our official support for MongoDB 4.4
Release Highlights
Streaming topology changes
MongoDB drivers maintain a local view of the topology they are connected to, and ensure the accuracy of that view by polling connected nodes on average every ~10s. In MongoDB 4.4, drivers are now able to receive push notifications about topology updates, effectively reducing the time for client recovery in failover scenarios to the time it takes for the server to make the election and report the outcome.
This feature is enabled by default when connecting to MongoDB 4.4, no changes are needed for user code.
Authentication
MONGODB-AWS authentication mechanism
The MONGODB-AWS authentication mechanism uses your Amazon Web Services Identity and Access Management (AWS IAM) credentials to authenticate users on MongoDB 4.4+. Please read more about this new authentication mechanism in our documentation.
Performance improvements
There were two projects to transparently improve performance of authentication in MongoDB 4.4:
A driver can now include the first saslStart command in its initial handshake with server. This so-called "speculative authentication" allows us to reduce one roundtrip to the server for authentication a connection. This feature is only support for X.509, SCRAM-SHA-1 and SCRAM-SHA-256 (default) authentication mechanisms.
The SCRAM conversation between driver and server can now skip one of it's empty exchanges which also serves to reduce the roundtrips during a SCRAM authentication.
OCSP stapling testing
OCSP stapling greatly improves performance when using LetsEncrypt certificates, removing the need for an external request to LetsEncrypt servers for each authentication attempt. No additional changes were required to support OCSP stapling in the driver, but extensive testing was added to verify that the feature works as expected.
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Bumps mongodb from 3.3.3 to 3.6.0.
Release notes
Sourced from mongodb's releases.
Commits
d84d14b
chore(release): 3.6.0a053f4e
fix: silently ignore session with unacknowledged writedfe7afa
fix: ReadPreference maxStalenessSeconds from optionsd728a13
fix: remove destructuring assignments for legacy node support4666646
chore: adds test for SRV + directConnection5d7c556
test: avoid unable to acquire lock errors on primary stepdown5bd16e2
chore: sync connectTimeoutMS SDAM spec test603d445
docs: add banner with link to new reference documentation19ec62f
fix: IPv6 is not supported when using dns service discovery31ae3c9
fix: assert update/replace atomic requirements in bulk operationsDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
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