What We Shipped This Week
Posted: June 22, 2026 · 2 min read
Faster Tab Sync
We rewrote the tab scanning logic to process calendar tabs in parallel instead of sequentially. If you have four calendar tabs open, the sync now runs roughly 3x faster. On most setups, a full sync completes in under 2 seconds. You will notice the difference immediately, especially on Monday mornings when you hit "Sync" for the first time after a weekend of meeting invites piling up.
Improved conflict detection accuracy
We fixed an edge case where all-day events were being flagged as conflicts with timed events. An all-day "Company Holiday" event on Client A's calendar should not trigger a conflict alert with a 10 AM standup on Client B's calendar. Previously, it did. Now it does not. All-day events are treated as background context, not as time-bound commitments, unless you explicitly change their status in manyCalendars settings.
Timezone in availability export
The plain-text availability export now includes your timezone at the top of the output. When you paste your availability into a Slack message or email, recipients in other timezones can immediately see what timezone the slots are in. Small change, but it prevents a lot of "wait, is that 2 PM your time or mine?" follow-ups. The format is clean: "All times in Pacific Time (PT)" at the top, followed by your available slots.
Bug fix: Edge browser rendering
Some users on Microsoft Edge reported that the calendar grid was not rendering correctly when the browser window was resized below 1200px width. The events were overlapping their grid cells and becoming unreadable. This was caused by a CSS calculation that behaved differently in Edge's rendering engine. Fixed. The grid now scales cleanly at any window size on Edge, Chrome, and Chromium-based browsers.
What is next
We are working on ICS feed refresh interval controls (so you can set per-feed sync timing), a keyboard shortcut for quick availability export, and some improvements to how recurring events display in month view. More on those when they ship.
If you have not tried manyCalendars yet, this is a good week to start. The syncing is faster, the conflict detection is smarter, and the availability export just got more useful. Grab it here. It is free, it is fast, and this week it got a little better.