『 此次发布是 Apollo 自 1.0.0 以来的又一次大版本更新，凝结了 39 位 Contributor 的贡献，包含了诸如 Java 17 支持、唯一键索引增强、Spring Boot 版本升级等重大更新。』

1. Highlights

Java 17 支持

Apollo 客户端和服务端均已支持 Java 8、11 和 17 版本。

公共 Namespace 列表页

Apollo 主页新增了公共 Namespace 列表视图，用户可以在此页面上查看和搜索公共 Namespace。

灰度发布支持标签

灰度规则支持通过标签来标识灰度的实例列表，适用于 IP 不固定的场景如 Kubernetes

配置导入导出功能增强

批量配置导入导出功能进行了重新设计并增强。

每个 Namespace 下现也已支持单独导入和导出。

唯一键索引

由于软删除的设计，Apollo 之前版本的数据库除主键外没有唯一键约束，在一些并发的情况下可能会遇到重复数据的问题。基于 2.0.0 版本新增的 DeletedAt 列，我们为大多数表都增加了唯一索引。

Spring Boot 和 Spring Cloud 版本升级

Apollo 服务端的 Spring Boot 和 Spring Cloud 分别升级到了 2.6.6 和 2021.0.1 版本。

不兼容更新 

apollo-client 从 2.0.0 版本开始不再支持 Java 1.7 版本，最低的 Java 运行时环境是 1.8。

2. What's Changed

功能增强

• switch apollo.config-service log from warning to info level by @lonre

• Make Access Key Timestamp check configurable by @nisiyong

• refactor: let open api more easier to use and development by @Anilople

• feat(scripts): use bash to call openapi by @Anilople

• support search by item by @lepdou

• feature: implement password policies to avoid weak passwords by @WillardHu

• public namespace basic function by @youabcd

• Extend the gray release capability to support dimensions other than IP by @zcy1010

• bump to 2.0.0 and drop java 1.7 support by @nobodyiam

• feat: add a shortcut to scroll to the top in the dashboard by @NICEXAI

• change scrollbar css by @zeemood

• support java 17 by @nobodyiam

• optimize navbar style by @lepdou

• add language.png icon by @lepdou

• support export import config by env by @lepdou

• support only show difference keys when compare namespace by @lepdou

• add zookeeper service discovery support(#3557) by @CalebZYC

• bump guava version to 31.0.1 by @Shoothzj

• Bump client springboot version by @Shoothzj

• The release history of namespaces that are not properties will also show comments and release times by @klboke

• Allow disable apollo client cache by @Shoothzj

• feature: isCommonlyUsed password check not hardcoded #4018 by @WillardHu

• canonical zh-cn text by @lepdou

• optimize create namespace page by @lepdou

• Add Ordered interface to ProviderManager SPI by @darcydai

• Bump xstream from 1.4.18 to 1.4.19 by @dependabot

• Using commons-lang3 to replace commons-lang by @ruanwenjun

• optimize import/export config by @lepdou

• Configure publish and rollback modal boxes to add scrollbars by @klboke

• add custom define discovery by @gy09535

• Refactor the soft delete design by @nisiyong

• upgrade spring boot to 2.6.6 and spring cloud to 2021.0.1 by @nobodyiam

• upgrade mysql-connector-java to 8.0.28 by @Anilople

• Upgrade flyway to 8.0.5 by @Shoothzj

• Broadcast ConfigChangeEvent using Spring ApplicationEvent @nobodyiam

问题修复

• Fix issue that the $ symbol is not used when reading shell variables by @ReganHe93

• Fix issue: ingress syntax by @lijiansgit

• fix helm scripts BUG by @w-a-n-g-s-h-u-n

• Catch LinkageError for ClassLoaderUtil.isClassPresent in case class is present but is failed to load by @nobodyiam

• fix gray publish refresh item status(#4039) by @CalebZYC

• Fix the issue that property placeholder doesn't work for dubbo reference beans by @lonre

• Fix the NPE occurred when using EnableApolloConfig with Spring 3.1.1 by @nobodyiam

• fix the json number display issue when it's longer than 16 by @CalebZYC

• fix update user password failure bug by @lepdou

• Fix bug: associated namespace display incorrect in text view by @darcydai

• fix import config bug by @lepdou

• fix the potential data inconsistency issue by @nobodyiam

• use item.isDeleted to check whether the item is deleted by @nobodyiam

• Fix the apollo portal start failed issue by @nobodyiam

其它更新

• remove ctrip profile by @JaredTan95

• Remove spring dependencies from internal code by @klboke

• remove ctrip profile dependency. by @Accelerator96

• fix gpg signing issues when deploying to maven repository with github action by @nobodyiam

• Fixed some code smells in apollo-portal module by @WillardHu

• clean ctrip profile by @JaredTan95

• Fixed some code smells in apollo-portal module #2 by @WillardHu

• fix NullPointerException hazard in StringUtils.join(..) method by @WillardHu

• Replace String.format() with newly created class OpenApiPathBuilder by @WillardHu

• Make the constructor of AbstractApolloHttpException implementation class to support string template by @WillardHu

• Removed useless hardcoded Strings in EnvUtils. by @DiegoKrupitza

• chore: Simplified the Env class in apollo-portal that links to Env enum in apollo-core by @DiegoKrupitza

• Chore: Future-proofed ConfigFileFormat by @DiegoKrupitza

• ConfigFileFormat#Properties are now fully compatible with themselves by @DiegoKrupitza

• Fix flaky test testGetPropertyNames. by @yyfMichaelYan

• Fix flaky test testAssembleQueryConfigUrl. by @yyfMichaelYan

• Update RelativeDateFormat.java by @xuxiawei

• chore: change 'ctripcorp' to 'apolloconfig' in .yaml files by @void1104

• Flaky test fields iteration order by @yyfMichaelYan

• test(apollo-core): PropertiesUtilTest by @youyulan

• optimization omits unnecessary time conversion by @xuxiawei

• Split helm chart into another repo by @JaredTan95

• refactor: SpringValueProcessor extract duplicate code by @mghio

• build: ctripcorp -> apolloconfig in .github/workflows/cla.yml by @Fool-coder

• Add unit tests for Utils by @joshknopp

• Change Copy Right year to 2022 by @Shoothzj

• Adding JUnit. Fixes #3874 by @ayush0407

• Test coverage by @ayush0407

• Test coverage by @ayush0407

• Fix flaky test by @plzdoo

• Update ReleaseMessageServiceWithCacheTest.java by @plzdoo

• Translation of Apollo Official Chinese Document(s) by @misselvexu

• fix a title indent error by @Alceatraz

• Misc changes by @nobodyiam

• feat: update secret access key tips by @weiyichao

• Misc changes by @lepdou

更多内容可以查看 2.0.0 的 Release Note。

感谢以下贡献者对此版本的贡献(排名不分先后)

@ReganHe93 @lonre @JaredTan95 @nisiyong @klboke @Accelerator96 @nobodyiam @lijiansgit @WillardHu @Anilople @lepdou @DiegoKrupitza @youabcd @zcy1010 @NICEXAI @zeemood @w-a-n-g-s-h-u-n @yyfMichaelYan @xuxiawei @void1104 @youyulan @CalebZYC @mghio @Fool-coder @Shoothzj @joshknopp @darcydai @dependabot @ruanwenjun @gy09535 @ayush0407 @czd890 @pengweiqhca @sy-records @dazuimao1990 @plzdoo @misselvexu @Alceatraz @weiyichao

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