diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d7e4c6..92962d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,17 +8,37 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
-### Removed
-- Removed deploy-manual.yml workflow — switching to Joomla update server method for extension distribution
+### Security
+- Fix JSON-LD XSS vulnerability via `</script>` injection in content data (#34)
+- Add ACL permission checks to Batch and ImportExport controllers (#37)
+- Add CSV import file type, MIME type, size, and content_type validation (#35)
+- Fix multilingual data corruption in content plugin load/save (#41)
 
 ### Added
-- Initial package structure with component, system plugin, and content plugin
-- Open Graph meta tag injection via system plugin (`onBeforeCompileHead`)
-- Twitter/X Card meta tag support (Summary and Summary with Large Image)
-- Per-article OG fields in the article editor
-- Per-menu-item OG fields in the menu item editor
-- Auto-generation of OG tags from article title, description, and images
+- Site-wide default OG title and description plugin parameters
+- Discord embed color via `theme-color` meta tag (color picker in plugin config)
+- LinkedIn article tags: `article:published_time`, `article:modified_time`, `article:author`
+- `og:image:width` and `og:image:height` for faster social preview rendering
+- `onMokoOGAfterRender` event for third-party plugin extensibility
+- Joomla Web Services API for OG tags — full CRUD at `/api/v1/mokoog/tags` (#27)
+- Live social preview in article/menu editors (Facebook and Twitter/X card mockups) (#3)
+- CSV import/export for bulk OG tag management (#12)
+- OG image text overlay generator (#7)
+- Multilingual OG tag support with per-language records (#11)
+- JSON-LD structured data: Article, WebPage, BreadcrumbList schemas (#6)
+- Social platform debugger quick links (Facebook, LinkedIn, Google) (#9)
+- Content type adapter architecture for K2, VirtueMart, HikaShop (#5)
+- WhatsApp and Telegram link preview optimization (#10)
+- Category-level OG tag support (#4)
+- Batch OG tag generation for existing articles (#1)
+- Auto-resize OG images to 1200x630px with center crop (#2)
+- SEO meta tag management: title, description, robots, canonical URL (#8)
+- Per-article and per-menu-item OG fields in the editor
+- Auto-generation of OG tags from article content, title, and images
 - Default fallback image configuration
-- Admin tag manager component for viewing all OG records
-- Facebook App ID support
-- Database table `#__mokoog_tags` for storing custom OG data
+- Admin tag manager component with filtering, search, and pagination
+- Facebook App ID and Telegram channel support
+- Database table `#__mokoog_tags` with multilingual unique key
+
+### Removed
+- Removed deploy-manual.yml workflow — using Joomla update server for distribution
diff --git a/README.md b/README.md
index c27ce8e..b51c8a2 100644
--- a/README.md
+++ b/README.md
@@ -6,35 +6,64 @@ Open Graph, Twitter Card, and social sharing meta tag management for Joomla 4/5/
 
 ## Overview
 
-MokoJoomOpenGraph gives you full control over how your Joomla content appears when shared on Facebook, Twitter/X, LinkedIn, WhatsApp, and other social platforms. Set custom titles, descriptions, and images per article and menu item — or let the extension auto-generate them from your existing content.
+MokoJoomOpenGraph gives you full control over how your Joomla content appears when shared on Facebook, Twitter/X, LinkedIn, Discord, WhatsApp, Telegram, and other social platforms. Set custom titles, descriptions, and images per article, menu item, and category — or let the extension auto-generate them from your existing content.
 
 ## Features
 
-- **Open Graph tags** — `og:title`, `og:description`, `og:image`, `og:url`, `og:type`, `og:site_name`
+### Social Meta Tags
+- **Open Graph tags** — `og:title`, `og:description`, `og:image`, `og:url`, `og:type`, `og:site_name`, `og:locale`
 - **Twitter/X Cards** — Summary and Summary with Large Image card types
-- **Per-article control** — Custom OG fields in the article editor
+- **LinkedIn** — `article:published_time`, `article:modified_time`, `article:author`
+- **Discord** — Custom embed color via `theme-color` meta tag
+- **Telegram** — `telegram:channel` for link previews
+- **Facebook** — `fb:app_id` support, `og:image:width`/`og:image:height` for instant previews
+
+### Content Management
+- **Per-article control** — Custom OG fields tab in the article editor
 - **Per-menu-item control** — Custom OG fields in the menu item editor
-- **Auto-generation** — Automatically builds tags from article content, title, and images
-- **Default fallback image** — Site-wide default when no article image exists
-- **Admin tag manager** — View and manage all OG records from a central dashboard
-- **Facebook App ID** — Optional `fb:app_id` meta tag support
-- **Joomla 4/5/6** — Modern DI container architecture, Joomla coding standards
+- **Per-category control** — Category-level OG tag overrides
+- **Multilingual support** — Per-language OG data with language-aware fallback
+- **Auto-generation** — Builds tags from article content, title, and images automatically
+- **Site-wide defaults** — Default OG title, description, and image for all pages
+
+### SEO
+- **SEO title override** — Custom `<title>` tag per page
+- **Meta description** — Per-page meta description control
+- **Robots directive** — Per-page noindex/nofollow settings
+- **Canonical URL** — Custom canonical URL overrides
+- **JSON-LD structured data** — Article, WebPage, BreadcrumbList, Organization schemas
+
+### Admin Tools
+- **Tag manager dashboard** — View and manage all OG records centrally
+- **Batch generation** — Auto-generate OG tags for all existing articles
+- **CSV import/export** — Bulk manage OG data via CSV files
+- **SEO health badges** — Visual indicators for missing descriptions, long titles, noindex
+- **Debug links** — Quick links to Facebook Debugger, LinkedIn Inspector, Google Rich Results
+- **Live preview** — Real-time Facebook and Twitter/X card preview in the editor
+
+### Developer Features
+- **REST API** — Full CRUD via Joomla Web Services (`/api/v1/mokoog/tags`)
+- **Content type adapters** — Extensible architecture for K2, VirtueMart, HikaShop
+- **Plugin event** — `onMokoOGAfterRender` for third-party plugins to add custom social tags
+- **OG image generator** — Text overlay on template backgrounds with auto-resize to 1200x630
 
 ## Installation
 
 1. Download the latest `pkg_mokoog-*.zip` from [Releases](https://git.mokoconsulting.tech/MokoConsulting/MokoJoomOpenGraph/releases)
 2. In Joomla Administrator → Extensions → Install → Upload Package File
-3. The system plugin is enabled automatically on install
+3. All plugins are enabled automatically on install
 
 ## Configuration
 
 Navigate to **Extensions → Plugins → System - MokoJoomOpenGraph** to configure:
 - Site name override
+- Default OG title and description (site-wide fallback)
 - Default fallback image
 - Twitter Card type and @username
 - Facebook App ID
-- Auto-generation behavior
-- Description length limit
+- Discord embed color
+- Telegram channel
+- Auto-generation, image resize, JSON-LD, and description length settings
 
 ## License