release: v0.5.11

Update README changelog to reflect releases v0.5.1 through v0.5.11.
Previous README only listed up to v0.5.0, missing 10 versions of features
including `check` CLI, skill management, session tracing, Codespaces support,
impact analysis, Snowflake Cortex, MCP auto-discovery, and more.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: anandgupta42

CHANGELOG.md

@@ -5,6 +5,12 @@ 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).
 
+## [0.5.11] - 2026-03-25
+
+### Fixed
+
+- **README changelog gap** — updated README to reflect releases v0.5.1 through v0.5.11; previous README only listed up to v0.5.0
+
 ## [0.5.10] - 2026-03-24
 
 ### Added

README.md

@@ -178,11 +178,14 @@ Contributions welcome — docs, SQL rules, warehouse connectors, and TUI improve
 
 ## Changelog
 
-- **v0.5.0** (March 2026) — smooth streaming mode, builtin skills via postinstall, `/configure-claude` and `/configure-codex` commands, warehouse auth hardening
-- **v0.4.9** (March 2026) — Snowflake auth overhaul (all auth methods), dbt tool regression fixes, parallel CI builds
-- **v0.4.2** (March 2026) — yolo mode, Python engine elimination (all-native TypeScript), tool consolidation, path sandboxing hardening, altimate-dbt CLI, unscoped npm package
-- **v0.4.0** (March 2026) — data visualization skill, 100+ tools, training system
-- **v0.3.x** — [See full changelog →](CHANGELOG.md)
+- **v0.5.11** (March 2026) — `altimate-code check` CLI command, data-viz improvements, Codespaces support, session tracing, 52 CI test fix
+- **v0.5.7** (March 2026) — impact analysis tool, training import, CI check command, `--max-turns` budget, LM Studio provider
+- **v0.5.6** (March 2026) — skill CLI & TUI management, GitHub skill install, Snowflake Cortex provider
+- **v0.5.5** (March 2026) — auto-discover MCP servers from VS Code, Cursor, Claude Code, Copilot configs
+- **v0.5.3** (March 2026) — bundle skills/dbt-tools in npm binary, marker guard CI
+- **v0.5.1** (March 2026) — simplified 3-mode agents (builder/analyst/plan), SQL write access control
+- **v0.5.0** (March 2026) — smooth streaming mode, builtin skills, `/configure-claude` and `/configure-codex` commands
+- **v0.4.x and earlier** — [See full changelog →](CHANGELOG.md)
 
 ## License