Weekly AI Dev Signal Report: 2026-08-18 to 2026-08-24

```markdown
## GitHub Copilot
- **The new GitHub Copilot experience in Slack**: Integrated capabilities into Slack for enhanced workflow. [Read more](https://github.blog/changelog/2026-08-21-the-new-github-copilot-experience-in-slack)
- **Shared agentic work with GitHub Copilot in Microsoft Teams**: Enables collaborative sessions in Microsoft Teams. [Read more](https://github.blog/changelog/2026-08-21-shared-agentic-work-with-github-copilot-in-microsoft-teams)
- **Enterprise managed settings in GitHub Copilot for JetBrains**: Introduces enterprise governance features for plugin use. [Read more](https://github.blog/changelog/2026-08-18-enterprise-managed-settings-in-github-copilot-for-jetbrains)
- **Credential revocation and deauthorization by token type**: Improved credential management during security incidents. [Read more](https://github.blog/changelog/2026-08-18-credential-revocation-and-deauthorization-by-token-type)
- **CodeQL 2.26.3 improves GitHub Actions queries and JavaScript modeling**: Enhancements for static analysis in GitHub Actions. [Read more](https://github.blog/changelog/2026-08-19-codeql-2-26-3-improves-github-actions-queries-and-javascript-modeling)
- **Auto model selection is now 30% off for Copilot Max users**: Discount on letting Copilot choose optimal AI models. [Read more](https://x.com/github/status/2090904529407443399)
- **Windows 11 arm64 VS2026 image generally available**: New image available for GitHub-hosted runners. [Read more](https://github.blog/changelog/2026-08-20-windows-11-arm64-vs2026-image-generally-available)
- **Code scanning adds a mitigated alert dismissal reason**: New option for marking alerts as 'Mitigated'. [Read more](https://github.blog/changelog/2026-08-20-code-scanning-adds-a-mitigated-alert-dismissal-reason)
- **Separate GitHub Actions path for GitHub Code Quality**: Dedicated workflow path for CodeQL actions. [Read more](https://github.blog/changelog/2026-08-20-separate-github-actions-path-for-github-code-quality)
- **Debug Your Scripts in VS Code with GitHub Copilot**: Tutorial on using GitHub Copilot for debugging in VS Code. [Read more](https://x.com/code/status/2090945203461120215)

## Claude Code
- **Claude Security scans now running on Claude Mythos 5**: Public beta now available. [Read more](https://x.com/claudeai/status/2090852314319880425)
- **General availability of Computer use, browser tool, Skills API, and Files API**: Enhancements for application automation. [Read more](https://x.com/claudedevs/status/2090540270219567575)
- **Claude Code versions released**:
- **Version 2.1.240**: Key bug fixes and reliability improvements. [Read more](https://x.com/ClaudeCodeLog/status/2091179147112468731)
- **Version 2.1.239**: 59 CLI changes to enhance functionality. [Read more](https://x.com/ClaudeCodeLog/status/2090893358088482877)
- **Version 2.1.238**: Updated CLI with plugin behavior and memory management improvements. [Read more](https://x.com/ClaudeCodeLog/status/2090540869023666470)
- **Version 2.1.237**: Fixed prompt caching for sessions. [Read more](https://x.com/ClaudeCodeLog/status/2090267180386472066)
- **Version 2.1.235**: Introduced optional spellcheck and new message handling. [Read more](https://x.com/ClaudeCodeLog/status/2089820945678528653)
- **Claude Managed Agents can power diverse UIs**: New cookbook for integration with AG-UI. [Read more](https://x.com/claudedevs/status/2090511582531072265)

## Codex
- **Reduction of over 20% in API prices for GPT-5.6 Sol**: Promotional pricing for three months, effective immediately. [Read more](https://x.com/OpenAIDevs/status/2090888116014137718)
- **OpenAI API updates**:
- **Regional processing for API requests**: [Read more](https://developers.openai.com/api/docs/changelog?entry=afc03c940dfa1d1d)
- **Pricing updates for GPT-5.6**: Reduced input and output costs. [Read more](https://developers.openai.com/api/docs/changelog?entry=ba13b6409da5a407)
- **Plugin enabling access to 100B+ resources for Codex**: [Read more](https://x.com/OpenAIDevs/status/2090480484107141493)
- **Shared threads in Codex and ChatGPT Work**: Collaborative features for build processes. [Read more](https://x.com/OpenAIDevs/status/2090555241343418814)
- **Team implementations using open-source Codex harness**: Integrating agents into existing tools. [Read more](https://x.com/OpenAIDevs/status/2090230646497251387)
- **Stampli cuts launch production time by 68% using Codex**: Demonstrating productivity gains. [Read more](https://openai.com/index/stampli)
- **Asana’s frontend test migration using Codex**: Migrated from Enzyme to React Testing Library in weeks. [Read more](https://x.com/OpenAIDevs/status/2090122836103102482)
- **Zero Data Retention commitment for eligible API customers**: [Read more](https://openai.com/index/offering-zero-data-retention-for-frontier-models)
- **Prompt Caching dashboard now available**: Monitor caching effectiveness via metrics. [Read more](https://developers.openai.com/api/docs/changelog?entry=a36a41e439cc282e)

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