This version mainly fix lots of bugs in 2.1.0 version and upgrade many dependencies to fix some big problem.

At the same time, community do some of enhancement for performance such as default auth plugin, Grpc request and distro protocol.

Finally, This version add two beta feature -- batchRegister and trace event. The first beta feature is used by proxy register situation like nacos-sync. The second beta feature is used to get the information of config or service changes. It will be a new plugin for community.

Detail see:

Features

[#5863] (BETA) Support batch register service. [#7424] Add version data compare in the history list. [#8305] (REMOVE) Remove leave nacos server nodes API temporarily. [#8481] (BETA) Add TRACE Event to server. [#8755] Add default fuzzy search feature.

Enhancement

[#8099] Fast failure for distro sync task and verify task if cluster disconnect. [#8150] Add the namespace description item to the namespace list page. [#8345] Add validation for service cluster name. [#8515] Optimize some code in InetUtils. [#8561] Enhance default authentication plugin performance. [#8574] Enhance filter service info for push callback. [#8592] Ehhance GrpcUtil memory and cpu cost. [#8622] Add NacosEnvironment and add some unit tests.

Refactor&dependency

[#8369] Remove mina dependency. [#8383] Upgrade jackson version to 2.12.6.1. [#8421] Remove commonOkHttp dependency. [#8472] Remove useless dependency. [#8479] Refactor singleton construction as private. [#8540] Upgrade spring-boot version to 2.6.8. [#8594] Makes distro data load timeout can be configured. [#8596] Explicitly specify spring-boot-maven-plugin version same as spring-boot. [#8623] Upgrade mysql-connector-java to 8.0.28.

BugFix

[#7039] Fix config encryptedData md5 calculation problem. [#8153] Fix NPE for AutoExpireCache. [#8243][#8653] Fix health check plugin problem. [#8275] Fix can't register service when use skywalking. [#8295] Fix can't login when use embedded storage in cluster model. [#8318] Fix findAllConfigInfoForDumpAll sql args error. [#8372] Fix client can't use https connection. [#8424] Fix cycle dependency problem. [#8428] Fix naming subscribe bug when multiple NamingService. [#8505] Fix log configuration conflict in spring-boot project. [#8514][#8539] Fix prometheus api error in client. [#8516] Fix the persistent instance becomes a temporary instance. [#8602] Fix display error after delete current namespace. [#8632] Fix subscribe disabled instance problem in the first time. [#8635] Fix NPE when call the shutdown method. [#8720] Fix the problem that config aspect invalid problem. [#8742] Fix change instance metadata, the revision of service not change. [#8784] Fix some bugs for Console UI. [#8833] Fix import config failed when open auth. [#8880] Fix constantly loading config when not read permission.

Test

[#4982][#8344] Fix naming module unit test and generate jacoco coverage report.