# Syncfusion Code Studio

## Documentation

- [How to Access Session History After Upgrading to CodeStudio v2.0.0 +](https://codestudio.syncfusion.com/kb/article/22714/how-to-access-session-history-after-upgrading-to-codestudio-v200-.md): Learn how to view and manage session history after upgrading to Code Studio v2.0.0. This guide explains why older chat sessions are not accessible and provides clear steps to open and display your current workspace conversations.
- [How to Enable Legacy Docs Indexing After Upgrading to Code Studio v2.0.0](https://codestudio.syncfusion.com/kb/article/22715/how-to-enable-legacy-docs-indexing-after-upgrading-to-code-studio-v200.md): Discover how to access and reference documentation after upgrading to CodeStudio v2.0.0. Learn why the legacy Docs Context Provider was deprecated and follow step-by-step instructions to use the new Realtime Fetch Tool for live doc retrieval.
- [Reviewing Git Diff Changes After Upgrading to Code Studio v2.0.0](https://codestudio.syncfusion.com/kb/article/22717/reviewing-git-diff-changes-after-upgrading-to-code-studio-v200.md): Learn how to review uncommitted git diff changes after upgrading to CodeStudio v2.0.0. This guide explains the migration from GitDiff to the new changes tool and provides step-by-step instructions to view modifications in your project workspace.
- [Resolving “Uncaught Exception” Error During Code Studio Auto Update](https://codestudio.syncfusion.com/kb/article/22722/resolving-uncaught-exception-error-during-code-studio-auto-update.md): Fix the Uncaught Exception error during Code Studio automatic updates. Learn why the issue occurs, quick steps to resolve it, and how to perform a clean reinstallation to ensure smooth launches with the latest version.
- [How to resolve Code Studio App corruption](https://codestudio.syncfusion.com/kb/article/22723/how-to-resolve-code-studio-app-corruption.md): Learn how to fully reset Syncfusion Code Studio by deleting cache, program files, and config folders on Windows and macOS to fix corruption and performance issues.
- [How to Resolve Error (Status Code 403) When Using the O3 Model in OpenAI Integration via OpenRouter](https://codestudio.syncfusion.com/kb/article/22726/how-to-resolve-error-status-code-403-when-using-the-o3-model-in-openai-integration-via-openrouter.md): Learn how to fix the 403 Forbidden error when using the OpenAI O3 model via OpenRouter by configuring the correct API key tier and BYOK settings.
- [How to Migrate Code Studio Rules to Custom Instructions](https://codestudio.syncfusion.com/kb/article/22730/how-to-migrate-code-studio-rules-to-custom-instructions.md): Learn how to migrate legacy Code Studio rules from config.yaml or .sfcoderules to the new Custom Instructions format required in version 2.0.0 and later.
- [Migrate Legacy Prompt Files to the Updated Platform](https://codestudio.syncfusion.com/kb/article/22742/migrate-legacy-prompt-files-to-the-updated-platform.md): Learn how to migrate old Code Studio .prompt files to the new .prompt.md format with YAML frontmatter required in version 2.0.0 and later.
- [How to Migrate Agent Files from CodeStudio v1.x.x to v2.0.0+](https://codestudio.syncfusion.com/kb/article/22743/how-to-migrate-agent-files-from-codestudio-v1xx-to-v200.md): Learn how to migrate CodeStudio agent.md files to agents.md and update settings so Agent rules work correctly in CodeStudio v2.0.0 and later.
- [How to Create and Run a Reusable Security Code Review Skill in Code Studio](https://codestudio.syncfusion.com/kb/article/23692/how-to-create-and-run-a-reusable-security-code-review-skill-in-code-studio.md): Learn how to create and run a reusable security code review skill in Code Studio to detect vulnerabilities and standardize reviews across projects and teams.