Changelog & Acknowledgments · Last updated 2026-06-25
Changelog & Open Source Acknowledgments
This page is two things at once. First, a running log of meaningful product updates to the Panchang API and platform. Second — and just as important — a public thank-you to the open source community that quietly makes work like ours possible. Without the maintainers and communities behind the tools we use, this product would not exist.
Recent updates
2026-06 · Access model update
Coordinate (lat/lon) lookup is now a paid feature (Amethyst and above); the Free plan uses supported city_id values.
The Free plan is now limited to a near-term demo date window (today-3 to today+7). Paid plans cover dates from 2025-01-01 through 2030-12-31.
Clarified request accounting: 1 call = 1 request, and the yearly endpoint = 12 requests. A cache hit still consumes quota.
New error codes: coordinate_access_restricted, free_demo_date_window_exceeded, public_date_window_exceeded — see the error reference.
2026-05 · Reliability and clarity
Improved API response consistency across all Panchang endpoints.
Expanded developer documentation and added more code samples.
Refreshed the support widget on the website for faster help.
2026-04 · Accuracy & coverage
Improved Panchang accuracy for high-latitude regions.
Expanded multi-faith festival coverage in the calendar feed.
New developer dashboard with clearer usage and quota visibility.
2026-03 · Polish
Refined error messages and developer-facing reference content.
Smoother onboarding flow for new accounts on the free tier.
General quality and stability improvements across the platform.
Initial public release
Public Panchang API: daily, monthly, and yearly endpoints.
Signed accuracy manifest at /v1/accuracy/manifest.
INR billing through Razorpay. GST treatment will be added once GST registration is active.
We add a new entry here roughly once a month. Subscribe to product updates by signing up for an account — we keep email volume low.
Built with open source
Modern software stands on the shoulders of countless open source contributors. The Panchang API is no exception. While we can’t reasonably enumerate every project that has shaped how we build, we want to publicly recognise the communities whose work directly touches what you see and use.
The foundations we build on
Built on reliable open-source web, database, and caching technologies. We’re grateful to the maintainers behind the tools that quietly power so much of modern internet infrastructure. Their decades of careful, often-thankless work is what lets small teams like ours ship a polished product to a global audience.
Astronomical computation
We rely on carefully selected open-source astronomy research and calculation tools maintained by independent contributors. Their work — rooted in centuries of accumulated astronomical knowledge and shared freely with the world — is the bedrock of our calculations. To every researcher and developer who has contributed to making precise celestial computation accessible: thank you.
Frontend & motion
The look and feel of this website is shaped by these wonderful projects:
GSAP and ScrollTrigger — for the animation and scroll-driven motion that brings our pages to life.
Google Fonts — we use the beautiful Space Grotesk, Inter, and JetBrains Mono typefaces, generously offered to the community.
Security & identity
Keeping accounts safe and onboarding friction-free relies on:
DevDarsha is built with respect for the open-source ecosystem. We are grateful to the developers, maintainers, and contributors whose work makes modern software possible.
This page is our small public acknowledgment of that contribution.