diff --git a/SUMMARY.md b/SUMMARY.md
index 91478a15..47574758 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -23,6 +23,10 @@
* [Install from Source](installation/install-from-source.md)
* [Post Installation Guide](installation/post-installation-guide.md)
* Obsolete Installation
+ * Fluent Package v5 (EOL) Installation
+ * [Install by RPM Package v5 \(Red Hat Linux\)](installation/install-fluent-package/install-by-rpm-fluent-package-v5.md)
+ * [Install by DEB Package v5 \(Debian/Ubuntu\)](installation/install-fluent-package/install-by-deb-fluent-package-v5.md)
+ * [Install by .msi Installer v5 \(Windows\)](installation/install-fluent-package/install-by-msi-fluent-package-v5.md)
* Treasure Agent v4 (EOL) Installation
* [Install by RPM Package v4 \(Red Hat Linux\)](installation/install-by-rpm-td-agent-v4.md)
* [Install by DEB Package v4 \(Debian/Ubuntu\)](installation/install-by-deb-td-agent-v4.md)
diff --git a/installation/install-fluent-package/install-by-deb-fluent-package-v5.md b/installation/install-fluent-package/install-by-deb-fluent-package-v5.md
new file mode 100644
index 00000000..87e87f04
--- /dev/null
+++ b/installation/install-fluent-package/install-by-deb-fluent-package-v5.md
@@ -0,0 +1,175 @@
+# Install `fluent-package` by DEB Package \(Debian/Ubuntu\)
+
+This article explains how to install stable versions of `fluent-package` deb packages, the stable Fluentd distribution packages maintained by [Fluentd Project](https://www.fluentd.org/).
+
+## What is `fluent-package`?
+
+Please see [fluent-package-v5-vs-td-agent](../../quickstart/fluent-package-v5-vs-td-agent.md).
+
+## How to install `fluent-package`
+
+{% hint style='info' %}
+NOTE:
+
+* `fluent-package` will be shipped in two flavors - normal release version and LTS (Long Term Support) version. See [Scheduled support lifecycle announcement about Fluent Package v6](https://www.fluentd.org/blog/fluent-package-v6-scheduled-lifecycle) about difference between this two flavors.
+* If you upgrade from `td-agent` v4, See [Upgrade to fluent-package v5](https://www.fluentd.org/blog/upgrade-td-agent-v4-to-v5).
+* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
+{% endhint %}
+
+{% hint style='danger' %}
+The following are deprecated fluent-package and td-agent (EOL) information:
+
+* About [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), See [Install by DEB Package v4](../install-by-deb-td-agent-v4.md).
+* About [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by DEB Package v3](../install-by-deb-td-agent-v3.md).
+{% endhint %}
+
+### Step 0: Before Installation
+
+Please follow the [Pre-installation Guide](../before-install.md) to configure your OS properly.
+
+### Step 1: Install from Apt Repository
+
+NOTE: If your OS is not supported, consider [gem installation](../install-by-gem.md) instead.
+
+A shell script is provided to automate the installation process for each version. The shell script registers a new apt repository at `/etc/apt/sources.list.d/fluent.sources` (or `/etc/apt/sources.list.d/fluent-lts.sources`) and installs the `fluent-package` deb package.
+
+#### For Ubuntu Noble:
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package5.sh | sh
+```
+
+#### For Ubuntu Jammy:
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package5.sh | sh
+```
+
+#### For Ubuntu Focal:
+
+{% hint style='info' %}
+fluent-package v6 will not be shipped for Ubuntu Focal.
+{% endhint %}
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-focal-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-focal-fluent-package5.sh | sh
+```
+
+#### For Debian Bookworm:
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package5.sh | sh
+```
+
+#### For Debian Bullseye:
+
+{% hint style='info' %}
+fluent-package v6 will not be shipped for Debian Bullseye.
+{% endhint %}
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bullseye-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bullseye-fluent-package5.sh | sh
+```
+
+### Step 2: Launch Daemon
+
+### `systemd`
+
+Use `/lib/systemd/system/fluentd` script to `start`, `stop`, or `restart` the agent:
+
+```text
+$ sudo systemctl start fluentd.service
+$ sudo systemctl status fluentd.service
+ sudo systemctl status fluentd
+● fluentd.service - fluentd: All in one package of Fluentd
+ Loaded: loaded (/lib/systemd/system/fluentd.service; enabled; vendor preset: enabled)
+ Active: active (running) since Wed 2023-08-16 08:18:22 UTC; 18s ago
+ Docs: https://docs.fluentd.org/
+ Process: 494 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTI>
+ Main PID: 826 (fluentd)
+ Tasks: 9 (limit: 4660)
+ Memory: 95.4M
+ CPU: 731ms
+ CGroup: /system.slice/fluentd.service
+ ├─826 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
+ └─833 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run>
+```
+
+To customize `systemd` behavior, put your `fluentd.service` in `/etc/systemd/system`.
+
+NOTE: In fluent-package v5, path is different. `/opt/fluent/bin` instead of `/opt/td-agent/bin`
+
+### Step 3: Post Sample Logs via HTTP
+
+The default configuration \(`/etc/fluent/fluentd.conf`\) is to receive logs at an HTTP endpoint and route them to `stdout`. For `fluent-package` logs, see `/var/log/fluent/fluentd.log`.
+
+You can post sample log records with `curl` command:
+
+```text
+$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test
+$ tail -n 1 /var/log/fluent/fluentd.log
+2018-01-01 17:51:47 -0700 debug.test: {"json":"message"}
+```
+
+## Next Steps
+
+You are now ready to collect real logs with Fluentd. Refer to the following tutorials on how to collect data from various sources:
+
+* Basic Configuration
+ * [Config File](../../configuration/config-file.md)
+* Application Logs
+ * [Ruby](../../language-bindings/ruby.md), [Java](../../language-bindings/java.md), [Python](../../language-bindings/python.md), [PHP](../../language-bindings/php.md),
+
+ [Perl](../../language-bindings/perl.md), [Node.js](../../language-bindings/nodejs.md), [Scala](../../language-bindings/scala.md)
+* Examples
+ * [Store Apache Log into Amazon S3](../../how-to-guides/apache-to-s3.md)
+ * [Store Apache Log into MongoDB](../../how-to-guides/apache-to-mongodb.md)
+ * [Data Collection into HDFS](../../how-to-guides/http-to-hdfs.md)
+
+{% hint style='info' %}
+There are some commercial supports for Fluentd, see [Enterprise Services](https://www.fluentd.org/enterprise_services).
+If you use Fluentd on production, Let's share your use-case/testimonial on [Testimonials](https://www.fluentd.org/testimonials) page.
+Please consider to feedback via [GitHub](https://github.com/fluent/fluentd-website/issues/new?template=testimonials.yml).
+{% endhint %}
+
+If this article is incorrect or outdated, or omits critical information, please [let us know](https://github.com/fluent/fluentd-docs-gitbook/issues?state=open). [Fluentd](http://www.fluentd.org/) is an open-source project under [Cloud Native Computing Foundation \(CNCF\)](https://cncf.io/). All components are available under the Apache 2 License.
diff --git a/installation/install-fluent-package/install-by-deb-fluent-package.md b/installation/install-fluent-package/install-by-deb-fluent-package.md
index 48afaddb..b920ced2 100644
--- a/installation/install-fluent-package/install-by-deb-fluent-package.md
+++ b/installation/install-fluent-package/install-by-deb-fluent-package.md
@@ -13,12 +13,13 @@ NOTE:
* `fluent-package` will be shipped in two flavors - normal release version and LTS (Long Term Support) version. See [Scheduled support lifecycle announcement about Fluent Package v6](https://www.fluentd.org/blog/fluent-package-v6-scheduled-lifecycle) about difference between this two flavors.
* If you upgrade from `td-agent` v4, See [Upgrade to fluent-package v5](https://www.fluentd.org/blog/upgrade-td-agent-v4-to-v5).
-* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
+* Do not directly upgrade from v4 to v6. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v4 to v5, then v5 to v6)
{% endhint %}
{% hint style='danger' %}
-The following are deprecated td-agent (EOL) information:
+The following are deprecated (EOL) fluent-package and td-agent information:
+* About [Fluent Package (fluent-package) v5 (EOL)](https://www.fluentd.org/blog/schedule-for-fluent-package-5-eol), See [Install by DEB Package v5](./install-by-deb-fluent-package-v5.md).
* About [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), See [Install by DEB Package v4](../install-by-deb-td-agent-v4.md).
* About [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by DEB Package v3](../install-by-deb-td-agent-v3.md).
{% endhint %}
@@ -47,18 +48,6 @@ curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package6-l
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package6.sh | sh
```
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package5.sh | sh
-```
-
#### For Ubuntu Jammy:
##### fluent-package 6 (LTS)
@@ -73,36 +62,6 @@ curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package6-l
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package6.sh | sh
```
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package5.sh | sh
-```
-
-#### For Ubuntu Focal:
-
-{% hint style='info' %}
-fluent-package v6 will not be shipped for Ubuntu Focal.
-{% endhint %}
-
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-focal-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-focal-fluent-package5.sh | sh
-```
-
#### For Debian Trixie:
##### fluent-package 6
@@ -131,36 +90,6 @@ curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package6.sh | sh
```
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package5.sh | sh
-```
-
-#### For Debian Bullseye:
-
-{% hint style='info' %}
-fluent-package v6 will not be shipped for Debian Bullseye.
-{% endhint %}
-
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bullseye-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bullseye-fluent-package5.sh | sh
-```
-
### Step 2: Launch Daemon
### `systemd`
diff --git a/installation/install-fluent-package/install-by-msi-fluent-package-v5.md b/installation/install-fluent-package/install-by-msi-fluent-package-v5.md
new file mode 100644
index 00000000..7b7bb9c2
--- /dev/null
+++ b/installation/install-fluent-package/install-by-msi-fluent-package-v5.md
@@ -0,0 +1,142 @@
+# Install `fluent-package` by .msi Installer \(Windows\)
+
+The recommended way to install Fluentd on Windows is to use MSI installers of `fluent-package`.
+
+## What is `fluent-package`?
+
+`fluent-package` is a packaged distribution of Fluentd which is formerly known as `td-agent`.
+
+* Includes Ruby and other library dependencies \(since most Windows machines don't have them installed\).
+* Includes a set of commonly-used 3rd-party plugins such as `in_windows_eventlog2`.
+
+You can also see [fluent-package-v5-vs-td-agent](../../quickstart/fluent-package-v5-vs-td-agent.md).
+
+## How to install `fluent-package`
+
+{% hint style='danger' %}
+The following are deprecated fluent-package and td-agent (EOL) information:
+
+* About deprecated [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), see [Install by .msi Installer v4 (Windows)](../install-by-msi-td-agent-v4.md).
+* About deprecated [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by msi Package v3](../install-by-msi-td-agent-v3.md).
+* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
+{% endhint %}
+
+### Step 1: Install `fluent-package`
+
+Download the latest version of MSI installer from [the download page for Long Term Support version](https://fluentd.cdn.cncf.io/lts/5/windows/index.html).
+Run the installer and follow the wizard.
+If you want to use the normal release version, use [the download page for normal release version](https://fluentd.cdn.cncf.io/5/windows/index.html).
+
+### Step 2: Set up `fluentd.conf`
+
+Open `C:/opt/fluent/etc/fluent/fluentd.conf` with a text editor. Replace the configuration with the following content:
+
+```text
+
+ @type windows_eventlog2
+ @id windows_eventlog2
+ channels application
+ read_existing_events false
+ tag winevt.raw
+ rate_limit 200
+
+ @type local
+ persistent true
+ path C:\opt\fluent\winlog.json
+
+
+
+
+ @type stdout
+
+```
+
+### Step 3: Launch Fluent Package Command Prompt with Administrator privilege
+
+Open Windows Start menu, and search `Fluent Package Command Prompt`. In most environments, the program will be found right under the "Recently Added" section or "Best match" section.
+
+
+
+`Fluent Package Command Prompt` is basically `cmd.exe`, with a few PATH tweaks for Fluentd programs. Use this program whenever you need to interact with Fluentd.
+
+### Step 4: Run `fluentd`
+
+Type the following command into `Fluent Package Command Prompt` with Administrator privilege:
+
+```text
+C:\opt\fluent> fluentd
+```
+
+Now `fluentd` starts listening to Windows Eventlog, and will print records to stdout as they occur.
+
+
+
+### Step 5: Run `fluentd` as Windows service
+
+Fluentd is registered as a Windows service permanently by the msi installer.
+Since version 5.0.0, the service does not automatically start after installed. You must manually start it.
+
+Choose one of your preferred way:
+
+* Using GUI
+* Using `net.ext`
+* Using Powershell Cmdlet
+
+#### Using GUI
+
+Please guide yourself to `Control Panel -> System and Security -> Administrative Tools -> Services`, and you'll see `Fluentd Windows Service` is listed.
+
+Please double click `Fluentd Window Service`, and click `Start` button. Then the process will be executed as Windows Service.
+
+#### Using `net.exe`
+
+```text
+> net start fluentdwinsvc
+The Fluentd Windows Service service is starting..
+The Fluentd Windows Service service was started successfully.
+```
+
+#### Using Powershell Cmdlet
+
+```text
+PS> Start-Service fluentdwinsvc
+```
+
+Note that using `fluentdwinsvc` is needed to start Fluentd service from the command-line. `fluentdwinsvc` is the service name and it should be passed to `net.exe` or `Start-Service` Cmdlet.
+
+The log file will be located at `C:/opt/fluent/fluentd.log` as we specified in Step 3.
+
+### Step 6: Install Plugins
+
+Open `Fluent Package Command Prompt` and use `fluent-gem` command:
+
+```text
+C:\opt\fluent> fluent-gem install fluent-plugin-xyz --version=1.2.3
+```
+
+## Next Steps
+
+You are now ready to collect real logs with Fluentd. Refer to the following tutorials on how to collect data from various sources:
+
+* Basic Configuration
+ * [Config File](../../configuration/config-file.md)
+* Application Logs
+ * [Ruby](../../language-bindings/ruby.md)
+ * [Java](../../language-bindings/java.md)
+ * [Python](../../language-bindings/python.md)
+ * [PHP](../../language-bindings/php.md)
+ * [Perl](../../language-bindings/perl.md)
+ * [Node.js](../../language-bindings/nodejs.md)
+ * [Scala](../../language-bindings/scala.md)
+* Examples
+ * [Store Apache Log into Amazon S3](../../how-to-guides/apache-to-s3.md)
+ * [Store Apache Log into MongoDB](../../how-to-guides/apache-to-mongodb.md)
+ * [Data Collection into HDFS](../../how-to-guides/http-to-hdfs.md)
+
+{% hint style='info' %}
+There are some commercial supports for Fluentd, see [Enterprise Services](https://www.fluentd.org/enterprise_services).
+If you use Fluentd on production, Let's share your use-case/testimonial on [Testimonials](https://www.fluentd.org/testimonials) page.
+Please consider to feedback via [GitHub](https://github.com/fluent/fluentd-website/issues/new?template=testimonials.yml).
+{% endhint %}
+
+If this article is incorrect or outdated, or omits critical information, please [let us know](https://github.com/fluent/fluentd-docs-gitbook/issues?state=open). [Fluentd](http://www.fluentd.org/) is an open-source project under [Cloud Native Computing Foundation \(CNCF\)](https://cncf.io/). All components are available under the Apache 2 License.
diff --git a/installation/install-fluent-package/install-by-msi-fluent-package.md b/installation/install-fluent-package/install-by-msi-fluent-package.md
index ea54ad46..88cad52f 100644
--- a/installation/install-fluent-package/install-by-msi-fluent-package.md
+++ b/installation/install-fluent-package/install-by-msi-fluent-package.md
@@ -14,8 +14,9 @@ You can also see [fluent-package-v5-vs-td-agent](../../quickstart/fluent-package
## How to install `fluent-package`
{% hint style='danger' %}
-The following are deprecated td-agent (EOL) information:
+The following are deprecated (EOL) fluent-package and td-agent information:
+* About [Fluent Package (fluent-package) v5 (EOL)](https://www.fluentd.org/blog/schedule-for-fluent-package-5-eol), See [Install by .msi Package v5](./install-by-msi-fluent-package-v5.md).
* About deprecated [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), see [Install by .msi Installer v4 (Windows)](../install-by-msi-td-agent-v4.md).
* About deprecated [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by msi Package v3](../install-by-msi-td-agent-v3.md).
* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
diff --git a/installation/install-fluent-package/install-by-rpm-fluent-package-v5.md b/installation/install-fluent-package/install-by-rpm-fluent-package-v5.md
new file mode 100644
index 00000000..c42c46a3
--- /dev/null
+++ b/installation/install-fluent-package/install-by-rpm-fluent-package-v5.md
@@ -0,0 +1,150 @@
+# Install `fluent-package` by RPM Package \(Red Hat Linux\)
+
+This article explains how to install stable versions of `fluent-package` rpm packages, the stable Fluentd distribution packages maintained by [Fluentd Project](https://www.fluentd.org/).
+
+## What is `fluent-package`?
+
+Please see [fluent-package-v5-vs-td-agent](../../quickstart/fluent-package-v5-vs-td-agent.md).
+
+## How to install `fluent-package`
+
+{% hint style='info' %}
+NOTE:
+
+* `fluent-package` will be shipped in two flavors - normal release version and LTS (Long Term Support) version. See [Scheduled support lifecycle announcement about Fluent Package v6](https://www.fluentd.org/blog/fluent-package-v6-scheduled-lifecycle) about difference between this two flavors.
+* If you upgrade from `td-agent` v4, See [Upgrade to fluent-package v5](https://www.fluentd.org/blog/upgrade-td-agent-v4-to-v5).
+* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
+{% endhint %}
+
+{% hint style='danger' %}
+The following are deprecated fluent-package and td-agent (EOL) information:
+
+* About [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), See [Install by RPM Package v4](../install-by-rpm-td-agent-v4.md).
+* About [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by DEB Package v3](../install-by-deb-td-agent-v3.md).
+{% endhint %}
+
+### Step 0: Before Installation
+
+Please follow the [Pre-installation Guide](../before-install.md) to configure your OS properly.
+
+### Step 1: Install from `rpm` Repository
+
+It is highly recommended to set up `ntpd` on the node to prevent invalid timestamps in the logs. See [Pre-installation Guide](../before-install.md).
+
+NOTE: If your OS is not supported, consider [gem installation](../install-by-gem.md) instead.
+
+#### Red Hat
+
+Download and execute the install script with `curl`:
+
+##### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package5-lts.sh | sh
+```
+
+##### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package5.sh | sh
+```
+
+Executing this script will automatically install `fluent-package` on your machine. This shell script registers a new `rpm` repository at `/etc/yum.repos.d/fluent-package.repo` (or `/etc/yum.repos.d/fluent-package-lts.repo`) and installs `fluent-package`.
+
+We use `$releasever` for repository path in the script and `$releasever` should be the major version only like `"9"`. If your environment uses some other format like `"9.2"`, change it to the major version only or set up .repo file manually.
+
+{% hint style='danger' %}
+Since v5.0.4, RHEL 7 / CentOS 7 is not supported anymore because CentOS 7 has reached EOL (June, 2024). Please consider migrating to another release.
+{% endhint %}
+
+#### Amazon Linux
+
+##### For Amazon Linux 2023:
+
+###### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package5-lts.sh | sh
+```
+
+###### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package5.sh | sh
+```
+
+##### For Amazon Linux 2:
+
+{% hint style='info' %}
+fluent-package v6 will not be shipped for Amazon Linux 2.
+{% endhint %}
+
+###### fluent-package 5 (LTS)
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2-fluent-package5-lts.sh | sh
+```
+
+###### fluent-package 5
+
+```bash
+curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2-fluent-package5.sh | sh
+```
+
+### Step 2: Launch Daemon
+
+Use `/usr/lib/systemd/system/fluentd` service to `start`, `stop`, or `restart` the agent:
+
+```text
+$ sudo systemctl start fluentd.service
+$ sudo systemctl status fluentd.service
+* fluentd.service - fluentd: All in one package of Fluentd
+ Loaded: loaded (/usr/lib/systemd/system/fluentd.service; enabled; vendor preset: disabled)
+ Active: active (running) since Wed 2023-08-02 05:35:16 UTC; 41s ago
+ Docs: https://docs.fluentd.org/
+ Process: 1901 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTIONS (code=exited, status=0/SUCCESS)
+ Main PID: 1907 (fluentd)
+ CGroup: /system.slice/fluentd.service
+ |-1907 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
+ `-1910 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/ru...
+
+```
+
+To customize `systemd` behavior, put your `fluentd.service` in `/etc/systemd/system`.
+
+NOTE: In `fluent-package` v5, the path is different i.e. `/opt/fluent/bin` instead of `/opt/td-agent/bin`.
+
+### Step 3: Post Sample Logs via HTTP
+
+The default configuration \(`/etc/fluent/fluentd.conf`\) is to receive logs at an HTTP endpoint and route them to `stdout`. For `fluentd` logs, see `/var/log/fluent/fluentd.log`.
+
+You can post sample log records with `curl` command:
+
+```text
+$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test
+$ tail -n 1 /var/log/fluent/fluentd.log
+2023-08-02 05:37:29.185634777 +0000 debug.test: {"json":"message"}
+```
+
+## Next Steps
+
+You are now ready to collect real logs with Fluentd. Refer to the following tutorials on how to collect data from various sources:
+
+* Basic Configuration
+ * [Config File](../../configuration/config-file.md)
+* Application Logs
+ * [Ruby](../../language-bindings/ruby.md), [Java](../../language-bindings/java.md), [Python](../../language-bindings/python.md), [PHP](../../language-bindings/php.md),
+
+ [Perl](../../language-bindings/perl.md), [Node.js](../../language-bindings/nodejs.md), [Scala](../../language-bindings/scala.md)
+* Examples
+ * [Store Apache Log into Amazon S3](../../how-to-guides/apache-to-s3.md)
+ * [Store Apache Log into MongoDB](../../how-to-guides/apache-to-mongodb.md)
+ * [Data Collection into HDFS](../../how-to-guides/http-to-hdfs.md)
+
+{% hint style='info' %}
+There are some commercial supports for Fluentd, see [Enterprise Services](https://www.fluentd.org/enterprise_services).
+If you use Fluentd on production, Let's share your use-case/testimonial on [Testimonials](https://www.fluentd.org/testimonials) page.
+Please consider to feedback via [GitHub](https://github.com/fluent/fluentd-website/issues/new?template=testimonials.yml).
+{% endhint %}
+
+If this article is incorrect or outdated, or omits critical information, please [let us know](https://github.com/fluent/fluentd-docs-gitbook/issues?state=open). [Fluentd](http://www.fluentd.org/) is an open-source project under [Cloud Native Computing Foundation \(CNCF\)](https://cncf.io/). All components are available under the Apache 2 License.
diff --git a/installation/install-fluent-package/install-by-rpm-fluent-package.md b/installation/install-fluent-package/install-by-rpm-fluent-package.md
index 0c6d9dbf..f50291bf 100644
--- a/installation/install-fluent-package/install-by-rpm-fluent-package.md
+++ b/installation/install-fluent-package/install-by-rpm-fluent-package.md
@@ -13,12 +13,13 @@ NOTE:
* `fluent-package` will be shipped in two flavors - normal release version and LTS (Long Term Support) version. See [Scheduled support lifecycle announcement about Fluent Package v6](https://www.fluentd.org/blog/fluent-package-v6-scheduled-lifecycle) about difference between this two flavors.
* If you upgrade from `td-agent` v4, See [Upgrade to fluent-package v5](https://www.fluentd.org/blog/upgrade-td-agent-v4-to-v5).
-* Do not directly upgrade from v3 to v5. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v3 to v4, then v4 to v5)
+* Do not directly upgrade from v4 to v6. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v4 to v5, then v5 to v6)
{% endhint %}
{% hint style='danger' %}
-The following are deprecated td-agent (EOL) information:
+The following are deprecated (EOL) fluent-package and td-agent information:
+* About [Fluent Package (fluent-package) v5 (EOL)](https://www.fluentd.org/blog/schedule-for-fluent-package-5-eol), See [Install by RPM Package v5](./install-by-rpm-fluent-package-v5.md).
* About [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), See [Install by RPM Package v4](../install-by-rpm-td-agent-v4.md).
* About [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by DEB Package v3](../install-by-deb-td-agent-v3.md).
{% endhint %}
@@ -49,26 +50,10 @@ curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package6-lts.sh
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package6.sh | sh
```
-##### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package5-lts.sh | sh
-```
-
-##### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-redhat-fluent-package5.sh | sh
-```
-
Executing this script will automatically install `fluent-package` on your machine. This shell script registers a new `rpm` repository at `/etc/yum.repos.d/fluent-package.repo` (or `/etc/yum.repos.d/fluent-package-lts.repo`) and installs `fluent-package`.
We use `$releasever` for repository path in the script and `$releasever` should be the major version only like `"9"`. If your environment uses some other format like `"9.2"`, change it to the major version only or set up .repo file manually.
-{% hint style='danger' %}
-Since v5.0.4, RHEL 7 / CentOS 7 is not supported anymore because CentOS 7 has reached EOL (June, 2024). Please consider migrating to another release.
-{% endhint %}
-
#### Amazon Linux
##### For Amazon Linux 2023:
@@ -85,36 +70,6 @@ curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package6-lts
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package6.sh | sh
```
-###### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package5-lts.sh | sh
-```
-
-###### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2023-fluent-package5.sh | sh
-```
-
-##### For Amazon Linux 2:
-
-{% hint style='info' %}
-fluent-package v6 will not be shipped for Amazon Linux 2.
-{% endhint %}
-
-###### fluent-package 5 (LTS)
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2-fluent-package5-lts.sh | sh
-```
-
-###### fluent-package 5
-
-```bash
-curl -fsSL https://fluentd.cdn.cncf.io/sh/install-amazon2-fluent-package5.sh | sh
-```
-
### Step 2: Launch Daemon
Use `/usr/lib/systemd/system/fluentd` service to `start`, `stop`, or `restart` the agent: