diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6352869d..089f30e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,68 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [6.12.0] - 2026-03-06 - "Developer APIs & Management Tools"
+
+> **7 new developer and product management skills plus web-app UI fixes.**
+
+This release introduces payment capabilities for agents via Agent Cards, production-grade Zod validation, comprehensive Product Management frameworks, and a suite of essential developer tools (API builder, bug hunter, performance optimizer). It also includes fixes for unwanted scrollbars in the interactive web app.
+
+## 🚀 New Skills
+
+### 💳 [agent-cards/skill](https://github.com/agent-cards/skill)
+
+**Manage prepaid virtual Visa cards for AI agents.**
+Allows AI agents to create cards, complete Stripe checkout, check balances, view credentials, and close cards via MCP.
+
+> **Try it:** `Use agent-cards to create a virtual Visa card with a $50 budget.`
+
+### 🛡️ [zod-validation-expert](skills/zod-validation-expert/)
+
+**Type-safe schema definitions and parsing logic with Zod.**
+Production-grade guide covering schema definition, type inference, safe parsing, transformations, and React/Next.js integration.
+
+> **Try it:** `Use zod-validation-expert to create a user registration schema with custom error messages.`
+
+### 📊 [product-manager](skills/product-manager/)
+
+**Senior PM agent with 6 knowledge domains and 30+ frameworks.**
+Provides product management expertise including RICE scoring, PRD templates, and 32 SaaS metrics with exact formulas.
+
+> **Try it:** `Draft a PRD for our new authentication feature using the product-manager templates.`
+
+### 🛠️ Developer Essentials (3 skills)
+
+**Essential skills for building, debugging, and optimizing applications.**
+
+- **[api-endpoint-builder](skills/api-endpoint-builder/)**: Builds production-ready REST API endpoints with validation and error handling.
+- **[bug-hunter](skills/bug-hunter/)**: Systematically finds and fixes bugs from symptoms to root cause.
+- **[performance-optimizer](skills/performance-optimizer/)**: Identifies and fixes performance bottlenecks in code, databases, and APIs.
+
+> **Try it:** `Use api-endpoint-builder to scaffold a secure user login REST endpoint.`
+
+---
+
+## 📦 Improvements
+
+- **Web App Scroll Fixes**: Corrected horizontal and vertical scrollbar overflow issues in the web app UI grid and virtualized lists (PR #208).
+- **Registry Update**: Now tracking 1011 skills.
+
+## 👥 Credits
+
+A huge shoutout to our community contributors:
+
+- **@keyserfaty** for `agent-cards`
+- **@zinzied** for web-app scroll fixes
+- **@sx4im** for `zod-validation-expert`
+- **@Digidai** for `product-manager`
+- **@Mohammad-Faiz-Cloud-Engineer** for developer essential skills
+
+---
+
+_Upgrade now: `git pull origin main` to fetch the latest skills._
+
+---
+
 ## [6.11.0] - 2026-03-05 - "Skills Expansion & Docs Polish"
 
 > **28 new skills, web-app performance upgrades, and documentation consistency pass.**
diff --git a/release_notes.md b/release_notes.md
index 21a7d892..09984902 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,31 +1,49 @@
-## v6.10.0 - "Skill Router & Developer Tools"
+## 🚀 New Skills
 
-> **Intelligent skill discovery, developer marketing, and AI integration tools.**
+### 💳 [agent-cards/skill](https://github.com/agent-cards/skill)
 
-This release brings a meta-skill for discovering the right skill, proofreading capabilities, Google Gemini integration, prompt optimization, SaaS MVP guidance, and Bitcoin Lightning Network skills.
+**Manage prepaid virtual Visa cards for AI agents.**
+Allows AI agents to create cards, complete Stripe checkout, check balances, view credentials, and close cards via MCP.
 
-### 🚀 New Skills (7)
+> **Try it:** `Use agent-cards to create a virtual Visa card with a $50 budget.`
 
-- **skill-router** — Intelligent entry point to the skill library with 4-question funnel
-- **professional-proofreader** — Structured proofreading and grammar correction
-- **gemini-api-integration** — Google Gemini API integration guide
-- **llm-prompt-optimizer** — Systematic prompt engineering framework
-- **saas-mvp-launcher** — End-to-end SaaS MVP roadmap
-- **lightning-factory-explainer** — Bitcoin Lightning channel factories
-- **lightning-channel-factories** — Multi-party channel architectures
-- **lightning-architecture-review** — Layer 2 scaling tradeoffs
+### 🛡️ [zod-validation-expert](skills/zod-validation-expert/)
 
-### 📦 Improvements
+**Type-safe schema definitions and parsing logic with Zod.**
+Production-grade guide covering schema definition, type inference, safe parsing, transformations, and React/Next.js integration.
 
-- Registry now tracking **978 skills**
-- Durable execution documentation updates
-- devmarketing-skills community link
-- Fixed risk levels in 3 skills
+> **Try it:** `Use zod-validation-expert to create a user registration schema with custom error messages.`
 
-### 👥 Contributors
+### 📊 [product-manager](skills/product-manager/)
 
-@lsuryatej, @tejasashinde, @SnakeEye-sudo, @8144225309, @maxdml, @jonathimer, @copilot-swe-agent
+**Senior PM agent with 6 knowledge domains and 30+ frameworks.**
+Provides product management expertise including RICE scoring, PRD templates, and 32 SaaS metrics with exact formulas.
+
+> **Try it:** `Draft a PRD for our new authentication feature using the product-manager templates.`
+
+### 🛠️ Developer Essentials (3 skills)
+
+**Essential skills for building, debugging, and optimizing applications.**
+
+- **[api-endpoint-builder](skills/api-endpoint-builder/)**: Builds production-ready REST API endpoints with validation and error handling.
+- **[bug-hunter](skills/bug-hunter/)**: Systematically finds and fixes bugs from symptoms to root cause.
+- **[performance-optimizer](skills/performance-optimizer/)**: Identifies and fixes performance bottlenecks in code, databases, and APIs.
+
+> **Try it:** `Use api-endpoint-builder to scaffold a secure user login REST endpoint.`
 
 ---
 
-_Upgrade: `git pull origin main` or `npx antigravity-awesome-skills update`_
\ No newline at end of file
+## 📦 Improvements
+
+- **Web App Scroll Fixes**: Corrected horizontal and vertical scrollbar overflow issues in the web app UI grid and virtualized lists (PR #208).
+- **Registry Update**: Now tracking 1011 skills.
+
+## 👥 Credits
+
+A huge shoutout to our community contributors:
+
+- **@keyserfaty** for `agent-cards`
+- **@zinzied** for web-app scroll fixes
+- **@sx4im** for `zod-validation-expert`
+- **@Digidai** for `product-manager`
+- **@Mohammad-Faiz-Cloud-Engineer** for developer essential skills