Nacos 2.2.0 GA Release: New Plugins, Refactoring, and Bug Fixes
The Nacos 2.2.0 GA release introduces several new plugins—including rate‑limiting, custom environment variable, and datasource plugins—removes legacy redundant code, enhances tracing and batch registration, and delivers extensive refactoring and bug fixes to improve stability and extensibility for cloud‑native service discovery and configuration management.
Nacos is a dynamic service discovery, configuration management, and service governance platform. After a month of community feedback on the 2.2.0‑BETA version, the project skipped a second beta and directly released the 2.2.0 GA version.
Key new features:
Removal of redundant code : Old 1.x mode discovery and dual‑write code have been deleted. Upgrading from Nacos 1.x to 2.2.0 is not supported; upgrades must start from at least version 2.0.0, while 1.x clients can still connect to 2.2.0 servers.
New plugin support :
Rate‑limiting plugin : Provides extensible rate‑limiting capabilities to protect the Nacos server under high load.
Custom environment variable plugin : Allows encrypted database passwords and other special configuration handling via plugin‑based decryption.
Datasource plugin : Enables multiple data‑source injection through SPI, allowing Nacos to work with various databases.
Enhancements to the previously beta traceability plugin and batch registration , making them easier to use.
Feature List
Support for batch registration and deregistration of services
v2 OpenAPI added for Nacos 2.0
Data‑source plugin addition
Data‑tracking plugin addition
Prometheus service discovery (HTTP SD) support
LDAP authentication plugin examples and LDAP identity authentication
Refactoring
Deleted 1.x naming and redundant code
Optimized selector logic
Server now stops automatically on startup errors
Improved fuzzy query performance
Enhanced data‑source plugin capabilities
Added isEmpty check for external data sources
Changed NacosApplicationListener method modifiers to default
Preserved query conditions after returning from list configuration and service pages
Refactored rate‑limiting module into a plugin
Bug Fixes
Fixed inconsistent length of group_id across tables
Resolved bean creation issue for ldapAuthenticationProvider Corrected Prometheus metric instance creation errors
Fixed Base64 decoding error for token.secret.key Addressed namespace list problems
Corrected NPE order in client worker thread checks
Fixed health‑check inaccuracies after HTTP conversion
Resolved selection errors when all instance weights are zero
Adjusted console query button width adaptation
Fixed service metadata cleanup logic causing deregistration failures
Dependency Upgrade
UI dependencies were upgraded to resolve known vulnerabilities.
For more details, see the official Nacos release notes and community announcements.
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