diff --git a/README.md b/README.md
index 794b928..ab52df6 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,8 @@ From your WordPress dashboard:
 ### Minimum Requirements
 
 - WordPress 6.8+
-- PHP 8.1+ (PHP 8.3 recommended)
+- PHP 8.2+ (PHP 8.3 recommended)
+- Patched PHP: 8.2.35, 8.3.36, 8.4.27, 8.5.12 or later fix the critical "php2shell" RCE vulnerabilities (CVE-2026-109618, CVE-2026-109619). PHP 8.1 and earlier no longer receive security fixes.
 - MySQL 5.0+ (MySQL 5.6+ recommended)
 - cURL PHP extension
 - mbstring PHP extension
diff --git a/docker/README.md b/docker/README.md
index 52eccb5..2e518bc 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -51,7 +51,8 @@ From your WordPress dashboard:
 ### Minimum Requirements
 
 - WordPress 6.8+
-- PHP 8.1+ (PHP 8.3 recommended)
+- PHP 8.2+ (PHP 8.3 recommended)
+- Patched PHP: 8.2.35, 8.3.36, 8.4.27, 8.5.12 or later fix the critical "php2shell" RCE vulnerabilities (CVE-2026-109618, CVE-2026-109619). PHP 8.1 and earlier no longer receive security fixes.
 - MySQL 5.0+ (MySQL 5.6+ recommended)
 - cURL PHP extension
 - mbstring PHP extension
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index c894453..b0c2c3b 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -2,14 +2,14 @@ name: progress-agentic-rag-plugin
 
 services:
   php-lint:
-    image: php:8.1-cli
+    image: php:8.3-cli
     working_dir: /plugin
     volumes:
       - ..:/plugin
     command: ["sh", "docker/scripts/lint-php.sh"]
 
   phpunit:
-    image: php:8.1-cli
+    image: php:8.3-cli
     working_dir: /plugin
     environment:
       PHPUNIT_COVERAGE: ${PHPUNIT_COVERAGE:-0}
@@ -30,7 +30,7 @@ services:
     command: ["sh", "docker/scripts/run-playwright.sh"]
 
   release-check:
-    image: php:8.1-cli
+    image: php:8.3-cli
     working_dir: /plugin
     environment:
       RELEASE_DIR: ${RELEASE_DIR:-build/progress-agentic-rag-connector}
diff --git a/progress-agentic-rag.php b/progress-agentic-rag.php
index 91b10c6..432ab5c 100644
--- a/progress-agentic-rag.php
+++ b/progress-agentic-rag.php
@@ -8,9 +8,9 @@
  * Plugin Name:       Progress Agentic RAG connector
  * Plugin URI:        https://github.com/nuclia/wordpress-plugin
  * Description:       Index WordPress content into Progress Agentic RAG and power knowledge-base search.
- * Version:           1.0.3
+ * Version:           1.1.0
  * Requires at least: 6.8
- * Requires PHP:      8.1
+ * Requires PHP:      8.2
  * Author:            Progress Software
  * Author URI:        https://www.progress.com/
  * License:           GPL v3 or later
@@ -29,8 +29,8 @@
 }
 
 // phpcs:disable WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound -- Public plugin constants already use the Progress Agentic RAG prefix.
-define( 'PROGRESS_AGENTIC_RAG_VERSION', '1.0.3' );
-define( 'PROGRESS_AGENTIC_RAG_MIN_PHP_VERSION', '8.1' );
+define( 'PROGRESS_AGENTIC_RAG_VERSION', '1.1.0' );
+define( 'PROGRESS_AGENTIC_RAG_MIN_PHP_VERSION', '8.2' );
 define( 'PROGRESS_AGENTIC_RAG_MIN_WP_VERSION', '6.8' );
 define( 'PROGRESS_AGENTIC_RAG_FILE', __FILE__ );
 define( 'PROGRESS_AGENTIC_RAG_PATH', plugin_dir_path( __FILE__ ) );
diff --git a/readme.txt b/readme.txt
index d6c023b..ed30e68 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,8 +3,8 @@ Contributors: progresssoftware
 Tags: search, ai, knowledge-base, rag, indexing
 Requires at least: 6.8
 Tested up to: 7.1
-Stable tag: 1.0.3
-Requires PHP: 8.1
+Stable tag: 1.1.0
+Requires PHP: 8.2
 License: GPLv3 or later
 License URI: https://www.gnu.org/licenses/gpl-3.0.html
 
@@ -69,6 +69,13 @@ value is passed as the second argument.
 
 == Changelog ==
 
+= 1.1.0 =
+
+* Breaking: minimum PHP raised from 8.1 to 8.2. PHP 8.1 no longer receives security
+  fixes, including for the critical "php2shell" RCE vulnerabilities (CVE-2026-109618,
+  CVE-2026-109619). Update to PHP 8.2.35, 8.3.36, 8.4.27, 8.5.12 or later (8.3+ recommended).
+* Dev: PHP lint and PHPUnit in CI now run on PHP 8.3.
+
 = 1.0.3 =
 
 * Security: hardened the front-end proxy — allow-listed and size-capped request paths,
diff --git a/tests/phpunit/bootstrap.php b/tests/phpunit/bootstrap.php
index 62c1356..cdd4f5a 100644
--- a/tests/phpunit/bootstrap.php
+++ b/tests/phpunit/bootstrap.php
@@ -13,7 +13,7 @@
 
 if ( ! defined( 'PROGRESS_AGENTIC_RAG_VERSION' ) ) {
 	define( 'PROGRESS_AGENTIC_RAG_VERSION', '1.0.0' );
-	define( 'PROGRESS_AGENTIC_RAG_MIN_PHP_VERSION', '8.1' );
+	define( 'PROGRESS_AGENTIC_RAG_MIN_PHP_VERSION', '8.2' );
 	define( 'PROGRESS_AGENTIC_RAG_MIN_WP_VERSION', '6.8' );
 	define( 'PROGRESS_AGENTIC_RAG_FILE', dirname( __DIR__, 2 ) . '/progress-agentic-rag.php' );
 	define( 'PROGRESS_AGENTIC_RAG_PATH', dirname( __DIR__, 2 ) . '/' );