Update README.md

Author: Snuffy2

README.md

@@ -12,9 +12,7 @@
 
 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. 
-
-__In most cases, a [plugin](#opnsense-plugin) is currently required to be installed on the <ins>OPNsense</ins> router for this to work properly.__
+`hass-opnsense` uses the OPNsense [REST API](https://docs.opnsense.org/development/api.html) to integrate OPNsense with Home Assistant. 
 
 A Discord server to discuss the integration is available, please click the Discord badge at the beginning of the page for the invite link.
 
@@ -48,9 +46,12 @@ 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 of 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 +74,8 @@ 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.
@@ -120,8 +123,6 @@ Either at the time of install or in the integration options, Granular Sync Optio
 
 * 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)
 
 * Lobby: Dashboard
@@ -192,11 +193,9 @@ 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)