zh-translation:/news/releases/1.2.x/announcing-1.2.5/index.md (#6257)

* translate the title and description

* change the title and description

* zh-translation:/news/releases/1.2.x/announcing-1.2.5/index.md

content/zh/news/releases/1.2.x/announcing-1.2.5/index.md

@@ -1,8 +1,8 @@
 ---
-title: Announcing Istio 1.2.5
+title: Istio 1.2.5 发布公告
 linktitle: 1.2.5
-subtitle: Patch Release
-description: Istio 1.2.5 patch release.
+subtitle: 发布补丁
+description: Istio 1.2.5 版本发布公告。
 publishdate: 2019-08-26
 release: 1.2.5
 aliases:
@@ -12,20 +12,19 @@ aliases:
     - /zh/news/announcing-1.2.5
 ---
 
-We're pleased to announce the availability of Istio 1.2.5. Please see below for what's changed.
+我们很高兴地宣布 Istio 1.2.5 现在是可用的，详情请查看如下更改。
 
 {{< relnote >}}
 
-## Security update
+## 安全更新{#security-update}
 
-Following the previous fixes for the security vulnerabilities described in [ISTIO-SECURITY-2019-003](/zh/news/security/istio-security-2019-003/)
-and [ISTIO-SECURITY-2019-004](/zh/news/security/istio-security-2019-004), we are now addressing the internal control plane communication surface.
-These security fixes were not available at the time of our previous security release, and we considered the control plane gRPC surface to be harder to exploit.
+遵循 [ISTIO-SECURITY-2019-003](/zh/news/security/istio-security-2019-003/)
+和 [ISTIO-SECURITY-2019-004](/zh/news/security/istio-security-2019-004) 中描述的安全漏洞的修复，我们现在解决内部控制平面的通信问题。这些修复在我们之前的安全版本中不可用，并且我们认为控制平面 `gRPC` 表面更难以开发。
 
-You can find the gRPC vulnerability fix description on their mailing list (c.f.
-[HTTP/2 Security Vulnerabilities](https://groups.google.com/forum/#!topic/grpc-io/w5jPamxdda4)).
+您可以在它们的邮件列表中找到 `gRPC` 的漏洞修复说明，详情参见 [HTTP/2 Security Vulnerabilities](https://groups.google.com/forum/#!topic/grpc-io/w5jPamxdda4)。
 
-## Bug fixes
+## Bug 修复{#bug-fixes}
 
-- Fix an Envoy bug that breaks `java.net.http.HttpClient` and other clients that attempt to upgrade from `HTTP/1.1` to `HTTP/2` using the `Upgrade: h2c` header ([Issue 16391](https://github.com/istio/istio/issues/16391)).
-- Fix a memory leak on send timeout ([Issue 15876](https://github.com/istio/istio/issues/15876)).
+- 修复了一个 Envoy 错误，打破 `java.net.http.HttpClient` 和其他客户端试图使用 `Upgrade: h2c` 的 header 从 `HTTP/1.1` 到 `HTTP/2` 进行升级，详情参见 ([Issue 16391](https://github.com/istio/istio/issues/16391))。
+
+- 修复了一个在发送超时时出现内存泄漏的问题 ([Issue 15876](https://github.com/istio/istio/issues/15876))。