diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a71177b..8250a32a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## 0.1.12
+
+### New Features
+
+- **Tools option**: Added `tools` option to `ClaudeAgentOptions` for controlling the base set of available tools, matching the TypeScript SDK functionality. Supports three modes:
+  - Array of tool names to specify which tools should be available (e.g., `["Read", "Edit", "Bash"]`)
+  - Empty array `[]` to disable all built-in tools
+  - Preset object `{"type": "preset", "preset": "claude_code"}` to use the default Claude Code toolset
+- **SDK beta support**: Added `betas` option to `ClaudeAgentOptions` for enabling Anthropic API beta features. Currently supports `"context-1m-2025-08-07"` for extended context window
+
 ## 0.1.11
 
 ### Internal/Other Changes
diff --git a/pyproject.toml b/pyproject.toml
index 2850005b..f2313384 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "claude-agent-sdk"
-version = "0.1.11"
+version = "0.1.12"
 description = "Python SDK for Claude Code"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/src/claude_agent_sdk/_version.py b/src/claude_agent_sdk/_version.py
index c8c57ba3..4acf6225 100644
--- a/src/claude_agent_sdk/_version.py
+++ b/src/claude_agent_sdk/_version.py
@@ -1,3 +1,3 @@
 """Version information for claude-agent-sdk."""
 
-__version__ = "0.1.11"
+__version__ = "0.1.12"