From a87de7e787b0d8a3f9d30bc5fa253508448e0fe5 Mon Sep 17 00:00:00 2001
From: GitHub Actions <actions@github.com>
Date: Thu, 23 Apr 2026 02:39:59 +0000
Subject: [PATCH] Release 0.48.0

---
 CHANGELOG.md    | 15 +++++++++++++++
 README.md       |  4 ++--
 ReleaseNotes.md | 19 +++++++++----------
 3 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f380bf27..570c1caf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,21 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.48.0 - April 23, 2026
+### Added
+- Context window usage details in chat, including a token breakdown for system instructions, messages, attached files, and tool results.
+- Auto Compress setting to compact conversation history and save context tokens.
+- Install flow for Xcode's built-in MCP server from settings.
+
+### Changed
+- Custom agents and the Auto model are now generally available.
+- Removed support for macOS 12.
+- Improved UI for model picker tooltips.
+
+### Fixed
+- Fixed an issue where GPT-5.4 requests could return a 400 error.
+- Fixed an issue where the MCP allowlist did not work correctly.
+
 ## 0.47.0 - February 4, 2026
 ### Added
 - Auto approval for MCP tools, sensitive files, and terminal commands.
diff --git a/README.md b/README.md
index eea0b39a..5cfeeabf 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,8 @@ You can receive auto-complete type suggestions from GitHub Copilot either by sta
 
 ## Requirements
 
-- macOS 12+
-- Xcode 8+
+- macOS 13+
+- Xcode 14+
 - A GitHub account
 
 ## Getting Started
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 54e04ee5..3dba99a7 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,18 +1,17 @@
-### GitHub Copilot for Xcode 0.47.0
+### GitHub Copilot for Xcode 0.48.0
 
 **🚀 Highlights**
 
-- **Toolcall Auto Approval**: Streamlined workflow with auto-approval support for MCP tools, sensitive files, and terminal commands.
-- **MCP Registry**: The MCP registry and allowlist features are now available (requires editor preview feature flag).
+- **Context Window and Auto Compress**: Track context token usage directly from the chat input and automatically compact conversation history to save tokens.
+- **Xcode MCP Server Setup**: Install and connect Xcode's built-in MCP server directly from settings.
+- **General Availability**: Custom agents and the Auto model are now generally available.
 
-**💪 Improvements**
+**💪 Changes**
 
-- Refined the working set header.
-- Improved the details view for MCP tool calls.
+- Removed support for macOS 12.
+- Improved UI for model picker tooltips.
 
 **🛠️ Bug Fixes**
 
-- Fixed layout issues with tool calls.
-- Resolved display issues for Next Edit Suggestions (NES).
-- Improved error messaging for SSL certificate failures.
-- Addressed various performance issues.
+- Fixed an issue where GPT-5.4 requests could return a 400 error.
+- Fixed an issue where the MCP allowlist did not work correctly.