Add version limit

Author: RidRisR

en/backup-restore-cr.md

@@ -260,7 +260,7 @@ This section introduces the fields in the `Backup` CR.
 
 ## CompactBackup CR fields
 
-To compact log backup data into structured SST files, users can create a custom CompactBackup CR object to describe a backup task. Below is a detailed explanation of the fields in the CompactBackup CR:
+For ***TiDB version 9.0.0*** and above, you can compact log backup to accelerate PITR restore. To compact log backup data into structured SST files, users can create a custom CompactBackup CR object to describe a backup task. Below is a detailed explanation of the fields in the CompactBackup CR:
 
 * `.spec.startTs`: The start timestamp for the compaction operation.
 * `.spec.endTs`: The ending timestamp for the log compaction backup range.

en/backup-to-aws-s3-using-br.md

@@ -540,7 +540,7 @@ In TiDB Operator v1.5.4, v1.6.0, and earlier versions, you can use the `logStop:
 
 ### Compact Backup
 
-You can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
+For ***TiDB version 9.0.0*** and above, you can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
 
 This section builds on the previous example of log backup and introduces how to use compact log backup.
 

en/backup-to-azblob-using-br.md

@@ -451,7 +451,7 @@ In TiDB Operator v1.5.4, v1.6.0, and earlier versions, you can use the `logStop:
 
 ### Compact Backup
 
-You can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
+For ***TiDB version 9.0.0*** and above, you can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
 
 This section builds on the previous example of log backup and introduces how to use compact log backup.
 

en/backup-to-gcs-using-br.md

@@ -451,7 +451,7 @@ In TiDB Operator v1.5.4, v1.6.0, and earlier versions, you can use the `logStop:
 
 ### Compact Backup
 
-You can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
+For ***TiDB version 9.0.0*** and above, you can use a `CompactBackup` CR to compact log backup data into SST format, which accelerates Point in Time Restore (PiTR).
 
 This section builds on the previous example of log backup and introduces how to use compact log backup.
 

zh/backup-restore-cr.md

@@ -249,7 +249,7 @@ summary: 介绍用于备份与恢复的 Custom Resource (CR) 资源的各字段
 
 ## CompactBackup CR 字段介绍
 
-为了将日志备份数据压缩成结构化SST，用户可以通过创建一个自定义的 `CompactBackup` CR 对象来描述一次备份，以下介绍 `CompactBackup` CR 各个字段的具体含义。
+对于 ***v9.0.0*** 以上的TiDB集群，你可以使用 `CompactBackup` 加速日志恢复。为了将日志备份数据压缩成结构化SST，用户可以通过创建一个自定义的 `CompactBackup` CR 对象来描述一次备份，以下介绍 `CompactBackup` CR 各个字段的具体含义。
 
 * `.spec.startTs`: 用于指定日志压缩备份的的范围起始时间戳。
 * `.spec.endTs`: 用于指定日志压缩备份的范围结束时间戳。

zh/backup-to-aws-s3-using-br.md

@@ -535,7 +535,7 @@ demo1-log-backup-s3        log      Stopped   ....
 
 ### 压缩日志备份
 
-`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的时间点恢复（Point in Time Restore, PiTR）。 
+对于 ***v9.0.0*** 以上的TiDB集群，`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的日志恢复（Point in Time Restore, PiTR）。 
 
 本节接续上文的日志备份的案例，介绍压缩日志备份的使用。
 

zh/backup-to-azblob-using-br.md

@@ -451,7 +451,7 @@ demo1-log-backup-azblob    log    Stopped   ....
 
 ### 压缩日志备份
 
-`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的时间点恢复（Point in Time Restore, PiTR）。 
+对于 ***v9.0.0*** 以上的TiDB集群，`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的日志恢复（Point in Time Restore, PiTR）。 
 
 本节接续上文的日志备份的案例，介绍压缩日志备份的使用。
 

zh/backup-to-gcs-using-br.md

@@ -451,7 +451,7 @@ demo1-log-backup-gcs       log      Stopped   ....
 
 ### 压缩日志备份
 
-`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的时间点恢复（Point in Time Restore, PiTR）。 
+对于 ***v9.0.0*** 以上的TiDB集群，`Compact Backup` CR 可以将日志备份数据压缩成SST格式来加速下游的日志恢复（Point in Time Restore, PiTR）。 
 
 本节接续上文的日志备份的案例，介绍压缩日志备份的使用。