Update hardware-and-software-requirements.md (#19539) (#19555)

pingcap · Dec 3, 2024 · 630e445 · 630e445
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diff --git a/hardware-and-software-requirements.md b/hardware-and-software-requirements.md
@@ -29,10 +29,6 @@ As an open-source distributed SQL database with high performance, TiDB can be de
     <td>Red Hat Enterprise Linux 8.4 or a later 8.x version</td>
     <td><ul><li>x86_64</li><li>ARM 64</li></ul></td>
   </tr>
-  <tr>
-    <td>Red Hat Enterprise Linux 7.3 or a later 7.x version</td>
-    <td><ul><li>x86_64</li><li>ARM 64</li></ul></td>
-  </tr>
   <tr>
     <td>Amazon Linux 2</td>
     <td><ul><li>x86_64</li><li>ARM 64</li></ul></td>
@@ -96,6 +92,7 @@ As an open-source distributed SQL database with high performance, TiDB can be de
 >
 > - For Oracle Enterprise Linux, TiDB supports the Red Hat Compatible Kernel (RHCK) and does not support the Unbreakable Enterprise Kernel provided by Oracle Enterprise Linux.
 > - According to [CentOS Linux EOL](https://www.centos.org/centos-linux-eol/), the upstream support for CentOS Linux 7 ends on June 30, 2024. TiDB ends the support for CentOS 7 starting from the 8.4 DMR version. It is recommended to use Rocky Linux 9.1 or a later version. While the upstream support for CentOS Linux 8 ends on December 31, 2021, CentOS Stream 8 continues to be supported by the CentOS organization.
+> - According to [Red Hat Enterprise Linux Life Cycle](https://access.redhat.com/support/policy/updates/errata/#Life_Cycle_Dates), the maintenance support for Red Hat Enterprise Linux 7 ends on June 30, 2024. TiDB ends the support for Red Hat Enterprise Linux 7 starting from the 8.4 DMR version. It is recommended to use Rocky Linux 9.1 or a later version. 
 > - Support for Ubuntu 16.04 will be removed in future versions of TiDB. Upgrading to Ubuntu 18.04 or later is strongly recommended.
 > - If you are using the 32-bit version of an operating system listed in the preceding table, TiDB **is not guaranteed** to be compilable, buildable or deployable on the 32-bit operating system and the corresponding CPU architecture, or TiDB does not actively adapt to the 32-bit operating system.
 > - Other operating system versions not mentioned above might work but are not officially supported.

diff --git a/releases/release-8.4.0.md b/releases/release-8.4.0.md
@@ -336,6 +336,13 @@ Starting from v8.4.0, the following contents are removed from the `TiDB-communit
 - `binlogctl`
 - `arbiter`
 
+## Operating system and platform requirement changes
+
+- According to [CentOS Linux EOL](https://www.centos.org/centos-linux-eol/), the upstream support for CentOS Linux 7 ends on June 30, 2024. TiDB ends the support for CentOS 7 starting from the 8.4 DMR version. It is recommended to use Rocky Linux 9.1 or a later version.
+- According to [Red Hat Enterprise Linux Life Cycle](https://access.redhat.com/support/policy/updates/errata/#Life_Cycle_Dates), the maintenance support for Red Hat Enterprise Linux 7 ends on June 30, 2024. TiDB ends the support for Red Hat Enterprise Linux 7 starting from the 8.4 DMR version. It is recommended to use Rocky Linux 9.1 or a later version.
+
+For the supported operating systems and platforms, see [Software and hardware recommendations](/hardware-and-software-requirements.md#os-and-platform-requirements).
+
 ## Removed features
 
 * The following features are removed starting from v8.4.0: