Microservices Engine:Nacos engine versions

MSE-optimized version 3.1.2.0

Open source core version: 3.1.2

Enhancements

• Optimized the mutual discovery mechanism between Eureka clients and Nacos 2.0 clients.

• Optimized the error messages of some clients.

• Improved the accuracy of source IP retrieval in some scenarios.

MSE-optimized version 3.1.1.1

Open source core version: 3.1.1

New features

• Supports QPS throttling for the Eureka full query API /apps.

Bug fixes

• Fixed an issue where the Eureka statusUpdate API may cause a large number of calls to the full query API /apps.

• Fixed an issue where an XML content-type is returned when a Eureka heartbeat fails with a 404 error.

• Fixed an issue where a lowercase Eureka instance ID may cause spikes in the call volume of the full query API /apps.

• Fixed an MCP Server cache inconsistency issue.

MSE-optimized version 3.1.1.0

Open source core version: 3.1.1

New features

• Supports AI guardrails when you update an MCP service definition.

Bug fixes

• Fixed an issue where the source IP of a Nacos 2.x client request over the public network is read as a private IP address when the AK whitelist for authentication is enabled.

• Fixed an issue where some APIs remain accessible after the Eureka feature is disabled.

• Fixed an issue where incorrect return codes are returned for some requests that have invalid parameters.

MSE-optimized version 3.1.0.0

Open source core version: 3.1.0

New features

• Supports A2A Registry.

MSE-optimized version 3.0.1.0

Open source core version: 3.0.1

New features

• Supports data source management, which automatically rotates the key information that applications use to access data sources.

• Supports MCP Registry, which converts existing APIs into MCP APIs.

• Authentication is enabled by default in the open source console. You can reset the administrator password of the open source console.

MSE-optimized version 2.3.2.1

Open source core version: 2.3.2

New features

• Includes all Professional Edition features and capabilities.

• Supports data source management.

• Supports runtime disk encryption.

Enhancements

• Provides higher performance and a higher SLA guarantee.

MSE-optimized version 2.3.2.1

Open source core version: 2.3.2

New features

• Supports dynamic changes to the number of namespaces based on quota limits. You can dynamically adjust the upper limit of the namespace quota in Quota Center.

• Supports local disaster recovery for authentication when Alibaba Cloud RAM authentication is enabled, which prevents RAM service instability from affecting Nacos access.

• Supports the metadata label field of Prometheus HTTP SD.

Bug fixes

• Fixed an issue where a service instance on a down ECS instance or pod may be removed from Nacos with a delay when the number of cluster connections exceeds the recommended value.

• Fixed an issue where data inconsistency between nodes occurs with a very small probability when the Nacos 1.x client is used.

• Fixed an issue where the size limit of a single configuration in the configuration center cannot be dynamically changed together with Quota Center.

• Fixed an issue where a "file not found" error is reported when you import configurations.

• Fixed an issue where incorrect error codes are returned for some requests.

• Fixed an issue where gRPC TPS and QPS statistics are counted twice.

• Fixed an issue where Eureka is incompatible with earlier client versions.

• Fixed an issue where configurations cannot be retrieved when the configuration center uses the default namespace and the configuration namespace ID is public.

• Fixed an issue where no data is returned when you query the registry service list through OpenAPI and the page size is too large.

• Fixed an issue where a 403 error is returned when you access the client healthCheck API.

• Fixed an issue where the appName of a subscriber is -.

• Fixed an issue where an instance restart unexpectedly deletes some metadata. For details, see ISSUE#11890.

• Fixed an issue where the console may retrieve other configurations when the dataId or group of a configuration contains an underscore (_).

MSE-optimized version 2.3.2.0

Open source core version: 2.3.2

New features

• Supports Alibaba Cloud RAM V4 signatures.

• Supports ActionTrail. For more information, see What is ActionTrail?.

• Supports adjusting the retention period of the configuration history as needed.

• Supports recording operator information when a configuration is changed.

• Supports Alibaba Cloud RAM authentication for the Prometheus SD API.

Enhancements

• Optimized performance, including gRPC push for service discovery and login API performance. Core capabilities are more than twice as fast as self-managed open source deployments.

• Enhanced throttling for internal APIs.

• Optimized the tag-based canary release logic. The upper limit on the number of canary versions is configurable.

• Optimized the configuration listening chain to eliminate frequent queries.

• Optimized the startup logic of the Eureka module. Read services are provided after data synchronization is complete.

Security

• Fixed and hardened some potential security risks.

MSE-optimized version 2.2.3.3

Open source core version: 2.2.3

New features

• Supports tag-based canary release for configurations.

Enhancements

• Optimized the data push logic so that a push failure on one connection has less impact on the data push latency of other connections.

• Raised the default length limit of service provider metadata to 4,096 characters.

Bug fixes

• Fixed an issue where the cluster CPU usage spikes because some Nacos 2.x clients frequently call the login API.

• Fixed a namespace capacity display issue.

• Fixed a service registration failure caused by an excessively short Eureka heartbeat interval.

MSE-optimized version 2.2.3.1

Open source core version: 2.2.3

New features

• Supports the RAM-AK whitelist feature.

• Supports the Eureka incremental data protocol.

Enhancements

• The open source console is disabled by default.

• Optimized the verification logic for engine upgrades and restarts to support lossless engine changes and improve stability.

• Optimized the logic for obtaining the source IP to improve accuracy.

• Optimized cluster throttling. More throttling features are supported to improve engine stability.

• Optimized the verification logic of request parameters to make parameter error messages clearer.

• Optimized the performance of the Eureka module. Performance is significantly higher than in earlier versions.

Bug fixes

• Fixed an issue where clients later than 2.2 cannot receive an update in which the service list changes to empty when forced empty list protection is disabled.

• Fixed an issue where the service provider count is incorrect during highly concurrent batch service registration.

• Fixed an issue where the configuration count limit does not take effect in version 2.2.3.0.

• Fixed an issue where data is not pushed when a problem occurs on a single xDS or MCP protocol connection.

MSE-optimized version 2.2.3.0

Open source core version: 2.2.3

New features

• Supports viewing the services registered, the services subscribed to, and the configurations listened to by risky client versions.

Enhancements

• Synchronized with the open source 2.2.3 kernel, including the change that removes the logon page of the open source console when authentication is disabled.

• Optimized the authentication-related prompts in the open source console.

• Optimized the push success rate monitoring logic. Expected empty list protection events are ignored so that the push success rate does not drop when empty list protection is triggered.

MSE-optimized version 2.1.2.2

Open source core version: 2.1.2

Enhancements

• Optimized the cleanup logic of expired metadata in the registry. Metadata modified when a service instance does not exist is cleaned up promptly.

• Reduced the duration of intermediate states and data inconsistency by optimizing automatic running mode switchover and automatic double-write stopping.

• Compatible with the underscore character (_) in the clusterName parameter of the registry.

Bug fixes

• Fixed an issue where the push track cannot be viewed after a push to nacos-go-sdk succeeds.

• Fixed an issue where data cannot be queried with a small probability when a client connection disconnects and a service is registered at the same time.

• Fixed an issue where the client receives a 403 permission error when it listens to a configuration after authentication resources are configured at the dataId level.

MSE-optimized version 2.1.2.1

Open source core version: 2.1.2

New features

• Java applications that use service administration can use Nacos service registration and discovery without code changes.

• Supports encryption for data communication between the Nacos server and clients.

MSE-optimized version 2.1.2.0

Open source core version: 2.1.2

New features

• Supports gzip-compressed push for registry addresses.

• Supports anti-fragility capabilities:

  • Connection throttling

  • TPS throttling for configuration publishing

  • QPS throttling for configuration reading

  • TPS throttling for service data push

MSE-optimized version 2.1.0.2

Open source core version: 2.1.0

Enhancements

• Optimized the empty list protection logic and narrowed its trigger scope. Empty list protection is triggered only when necessary.

Bug fixes

• Fixed an issue where the status code returned by the engine OpenAPI is always 500.

• Fixed an issue where horizontal notifications and Distro notifications fail during scale-in.

• Fixed an issue where the configuration obtained by the Cipher-256 algorithm is ciphertext when a 2.x client reads an encrypted configuration.

• Fixed an issue where incorrect data is published with a small probability during a push to Istio.

• Fixed an issue where Chinese characters in configurations obtained through ACM-Node.js-SDK are garbled.

MSE-optimized version 2.1.0.1

Open source core version: 2.1.0

Enhancements

• Optimized empty list protection decisions for Dubbo multi-subscription scenarios to prevent clients from printing large volumes of invalid empty list protection logs.

• Optimized the push task model for greater stability during large-scale pushes.

Bug fixes

• Fixed an issue where clients frequently print out-date logs.

MSE-optimized version 2.1.0.0

Open source core version: 2.1.0

New features

• Supports empty list protection to improve high availability (HA). This feature is available only in the Professional Edition.

Enhancements

• Optimized long polling for configuration listening, which improves performance by about 100%.

MSE-optimized version 2.0.4.0

Open source core version: 2.0.4

New features

• Supports Dragonwell for higher performance. This feature is available only in the Professional Edition.

• Supports registry authentication.

• Supports the RAM control policy feature.

Bug fixes

• Fixed an issue where connections between nodes may disconnect and not reconnect during concurrent startup.

• Fixed an issue where the encryption algorithm may be incorrect when you import an encrypted configuration.

MSE-optimized version 2.0.3.2

Open source core version: 2.0.3

Bug fixes

• Fixed an issue where the address server occasionally fails to initialize.

• Fixed an issue where a node stays in the recovering state after configuration authentication is enabled.

MSE-optimized version 2.0.3.1

Open source core version: 2.0.3

Enhancements

• Improved compatibility with the ACM protocol. ACM clients are supported, and configuration operations can use the ACM protocol.

• MSE Nacos provides better support for the address server mode.

Bug fixes

• Fixed an issue where the time in the configuration history is inaccurate after a configuration is modified.

• Fixed an issue where entering {address}:8848/nacos in the open source console fails to redirect to the console page.

• Fixed an issue where Chinese characters in configurations published in the open source console are garbled.

• Fixed an issue where the service provider count is incorrect because the Golang SDK does not retry, or retries abnormally, after the initial pull fails.

• Fixed an issue where the Eureka protocol frequently prints logs.

• Fixed an issue where Chinese characters published through nacos-nodejs-sdk are garbled.

• Fixed an issue where the address server does not take effect in standalone mode.

MSE-optimized version 2.0.3.0

Open source core version: 2.0.3

New features

• Compatible with the ACM (Diamond) protocol, which allows ACM users to migrate to this version.

• Supports exporting configurations from ACM and importing them into the configuration management service of MSE Nacos.

Enhancements

• Improved the stability of importing and exporting encrypted configurations.

MSE-optimized version 2.0.1.1

Open source core version: 2.0.1

Enhancements

• Optimized the database query logic to reduce the impact of database jitter on the server.

Bug fixes

• Fixed a frontend display issue in the console where all instances appear to change when you bring an instance online or offline, or change its weight.

• Fixed an issue where metadata is not deleted after expiration when an instance goes offline while the Nacos 1.x client is used.

• Fixed an issue where Istio (cloud-native gateway) cannot detect an instance going offline or a weight change.

MSE-optimized version 2.0.1.0

Open source core version: 2.0.1

Enhancements

• Extended compatible client versions to Java Client 0.8.

• Optimized the performance of the MCP and xDS protocols.

• Optimized the stability of service data push.

Bug fixes

• Fixed an issue where the namespace page displays an incorrect maximum configuration value.

• Fixed an issue where new nodes may fail to join the cluster during scale-out.

MSE-optimized version 2.0.0.0

Open source core version: 2.0.0

New features

• Supports the gRPC-based Nacos registry and configuration center features.

• Supports a more complete authentication, encryption, and decryption system.

Enhancements

• Performance is about 10 times higher than that of the Basic Edition.

MSE-optimized version 1.2.1.3

Open source core version: 1.2.1

New features

• Supports the RAM control policy feature.

Enhancements

• Optimized the running thread pool to support automatic dynamic adjustment.

Bug fixes

• Fixed an issue where some queries are inaccurate when you query service subscribers.

MSE-optimized version 1.2.1.2

Open source core version: 1.2.1

Enhancements

• Optimized database dependencies to reduce the impact of database pressure jitter on Nacos request responses.

Bug fixes

• Fixed an issue where configurations exported from ACM cannot be imported.

MSE-optimized version 1.2.1.1

Open source core version: 1.2.1

Enhancements

• Optimized the performance of the MCP and xDS protocols.

Bug fixes

• Fixed an issue where the namespace page displays an incorrect maximum configuration value.

MSE-optimized version 1.2.1.0

Open source core version: 1.2.1

New features

• Supports the HTTP-based Nacos registry and configuration center features.

Open source core version 1.1.3

New features

• Supports the HTTP-based Nacos registry features.