Frequently Asked Questions
Find answers to common questions about Browser Release Calendar, our data sources, API access, and how to make the most of our browser tracking tools.
Browser Release Calendar
Everything you need to know about tracking browser releases
Browser Release Calendar is a comprehensive tool that tracks and displays upcoming release schedules for major web browsers: Chrome, Safari, Edge, and Firefox. It helps developers, QA teams, DevOps engineers, and product managers stay informed about browser updates across all platforms and channels (stable, beta, etc.).
We track releases for four major browsers across multiple platforms:
- Chrome: Windows, macOS, Linux, Android, ChromeOS, iOS
- Safari: macOS, iOS
- Edge: Windows, macOS, Linux, Android, iOS
- Firefox: Desktop (Windows/macOS/Linux), Android
We track the following release channels:
- Current Stable: Currently released stable versions available to all users
- Current Beta: Currently released beta versions for testing
- Upcoming Stable: Scheduled upcoming stable releases
- Upcoming Beta: Scheduled upcoming beta releases
Note: Firefox ESR (Extended Support Release) and Edge Canary are excluded from the simplified view but available via our raw API endpoint.
Release data is cached for 24 hours and automatically refreshed when the cache expires. We fetch data directly from official browser vendor sources to ensure accuracy. The cache is also warmed on server startup to provide instant data availability.
Each major browser vendor—Google, Mozilla, Microsoft, and Apple—publishes release information through different APIs, documentation pages, and data formats. Release cycles, channel naming conventions, and data structures vary significantly between browsers, making it time-consuming to monitor all of them manually.
Browser Release Calendar solves this by aggregating and normalizing release data from all major browsers into a single, consistent format. Our unified calendar view and API save developers, QA teams, and IT professionals hours of research by providing a single source of truth for browser release schedules.
Yes! We provide an API with multiple endpoints:
- /api/releases - Simplified view (excludes Firefox ESR and Edge Canary)
- /api/releases/raw - Complete raw data from all browser vendors
- POST /api/releases/refresh - Force cache refresh (requires authorization)
Visit our API Documentation page for complete endpoint details, request/response schemas, and interactive testing.
Firefox ESR (Extended Support Release) targets enterprise environments with long-term support cycles and different update schedules, making it less relevant for general development planning. Edge Canary is an experimental channel with daily builds that are too unstable for production planning. Both are available in the raw API endpoint for users who specifically need this data.
Browser Release Calendar is designed for:
- QA & Testing Teams: Schedule regression testing before stable releases and validate features on beta channels
- Development Teams: Plan feature adoption based on browser support timelines and prepare for deprecations
- DevOps & SRE: Coordinate deployment freezes around major browser updates and monitor performance impacts
- Product Management: Align feature launches with browser capabilities and communicate support changes
Absolutely! Our API is designed for programmatic access. You can fetch release schedules in your build scripts, monitoring tools, or automated testing pipelines. The data is returned in JSON format with consistent schemas. Check our API documentation for integration examples.
Release dates are as accurate as the official sources provide. However, browser vendors may adjust release schedules due to critical bugs, security issues, or other factors. Upcoming releases may show 'TBD' (To Be Determined) when vendors haven't announced specific dates yet. We recommend checking regularly for the most current information.
Besides checking our website regularly, you can integrate our API into your monitoring tools, set up automated alerts using the API data, or bookmark the release calendar page. We're working on additional notification features for future updates.
We welcome your questions, feedback, and suggestions! You can reach us at:
Email: [email protected]
We typically respond within 1-2 business days. For more information, visit our Contact page.
Still have questions?
If you couldn't find the answer you're looking for, check out our API Documentation or explore the Browser Release Calendar directly. You can also contact us at [email protected].