diff --git a/README.md b/README.md
index 16ed1fc9..f5c25465 100644
--- a/README.md
+++ b/README.md
@@ -12,16 +12,17 @@
 
 Join `OPNsense` with `Home Assistant`!
 
-`hass-opnsense` uses the OPNsense [REST API](https://docs.opnsense.org/development/api.html) and built-in `xmlrpc` service to integrate OPNsense with Home Assistant. 
+`hass-opnsense` uses the OPNsense [REST API](https://docs.opnsense.org/development/api.html) to integrate OPNsense with Home Assistant. 
+
+**With OPNsense Firmware 26.1.1+, a plugin is no longer needed on the OPNsense Router.**
 
-__In most cases, a [plugin](#opnsense-plugin) is currently required to be installed on the <ins>OPNsense</ins> router for this to work properly.__
 
 A Discord server to discuss the integration is available, please click the Discord badge at the beginning of the page for the invite link.
 
 ## Table of Contents
 
 * [Installation](#installation)
-  * [OPNsense Plugin](#opnsense-plugin)
+  * [OPNsense Plugin (deprecated)](#opnsense-plugin)
   * [Home Assistant Integration](#homeassistant-integration)
     * [HACS Installation](#hacs-installation)
     * [Manual Installation](#manual-installation)
@@ -48,9 +49,12 @@ A Discord server to discuss the integration is available, please click the Disco
 
 This integration **replaces** the built-in OPNsense integration which only provides `device_tracker` functionality. Be sure to remove any associated configuration for the built-in integration **before** installing this replacement.
 
-In most cases, use of the integration requires a plugin installed on <ins>OPNsense</ins>.
+### OPNsense Plugin *(deprecated)*
+
+With OPNsense Firmware 26.1.1+, a plugin is **no longer needed** on the OPNsense Router.
 
-### OPNsense Plugin
+<details>
+<summary><h4>OPNsense Firmware < 26.1.1</h4></summary>
 
 In most cases, use of the integration requires an <ins>OPNsense</ins> plugin made available on mimugmail repository: `https://www.routerperformance.net/opnsense-repo/`. See [Granular Sync Options](#granular-sync-options) below for more details.
 
@@ -73,6 +77,8 @@ OR
 
 2. In an <ins>OPNsense</ins> SSH session: `pkg install os-homeassistant-maxit`
 
+</details>
+
 ### HomeAssistant Integration
 
 In Home Assistant, add this repository to the HACS installation or clone the directory manually.
@@ -116,13 +122,9 @@ In <ins>OPNsense</ins>, create a new admin role user (or choose an existing admi
 
 ### Granular Sync Options
 
-Either at the time of install or in the integration options, Granular Sync Options can be enabled. There, choose the categories to sync with HA as desired. If enabled:
+Either at the time of install or in the integration options, Granular Sync Options can be enabled. There, choose the categories to sync with HA as desired. If enabled, the <ins>OPNsense</ins> user can have more narrow permissions.
 
-* The <ins>OPNsense</ins> user can have more narrow permissions
-
-* If a category that requires the <ins>OPNsense</ins> plugin isn't selected, the plugin on the <ins>OPNsense</ins> router isn't needed
-
-At minimum, the following permissions are required. [The list of what other permissions are needed for the Granular Sync Options and for the Actions can be reviewed here.](granular_permissions.md)
+At minimum, the following permissions are required:
 
 * Lobby: Dashboard
 
@@ -130,6 +132,8 @@ At minimum, the following permissions are required. [The list of what other perm
 
 * System: Firmware
 
+[The list of what other permissions are needed for the Granular Sync Options and for the Actions can be reviewed here.](granular_permissions.md)
+
 ### Basic Configuration
 
 | Option | Required | Default | Description |
@@ -192,11 +196,9 @@ Many entities are created by `hass-opnsense` for statistics etc. Due to the volu
 
 All of the switches are disabled by default
 
-* Filter Rules - enable/disable rules
-
-* NAT Port Forward Rules - enable/disable rules
+* Firewall Rules - enable/disable rules
 
-* NAT Outbound Rules - enable/disable rules
+* NAT Rules - enable/disable rules
 
 * Services - start/stop services (services must be enabled before they can be started)
 
diff --git a/granular_permissions.md b/granular_permissions.md
index b949b199..5e0602cb 100644
--- a/granular_permissions.md
+++ b/granular_permissions.md
@@ -54,13 +54,29 @@
 | Interfaces: Virtual IPs: Status | /api/diagnostics/interface/get_vip_status |
 | Interfaces: Virtual IPs: Settings | /api/interfaces/vip_settings/get |
 
-## Firewall filter and NAT switches
+## Firewall rules and NAT rules switches
+
+### OPNsense Firmware 26.1.1+
+
+| OPNsense Permission | API Endpoints |
+| ----- | ----- |
+| Firewall: Rules [New] | /api/firewall/filter/search_rule<br>/api/firewall/filter/toggle_rule |
+| Firewall: NAT: Destination NAT | /api/firewall/d_nat/search_rule<br>/api/firewall/d_nat/toggle_rule |
+| Firewall: NAT: 1:1 | /api/firewall/one_to_one/search_rule<br>/api/firewall/one_to_one/toggle_rule |
+| Firewall: NAT: Source NAT | /api/firewall/source_nat/search_rule<br>/api/firewall/source_nat/toggle_rule |
+| Firewall: NAT: NPTv6 | /api/firewall/npt/search_rule<br>/api/firewall/npt/toggle_rule |
+
+<details>
+<summary><h3>OPNsense Firmware < 26.1.1</h3></summary>
+
 > **\*\*OPNsense plugin required\*\***
 
 | OPNsense Permission | API Endpoints |
 | ----- | ----- |
 | XMLRPC Library | _N/A – Operations are executed using the XMLRPC interface and OPNsense plugin_ |
 
+</details>
+
 ## Service switches
 
 | OPNsense Permission | API Endpoints |