This section contains iCalendar related news, including news about this site and iCalendar news from around the globe.  Do you have an interesting iCalendar related story? We would love to hear about it.  Send us a message using our contact us page.

New RRULE Tool Now Available

A new tool for generating RRULE strings is now available on under the "RRULE Tool" menu option. With the tool, you can generate RRULE strings for events with repeating days, weeks, months and years.

Validator Moves From Beta to Production

After more than 2 years of development and feedback from users, the iCalendar validator here at has moved from beta to production status with the release of version 1.8. In addition to the status change, the latest version also adds a few enhancements made from suggestions by the user community (a version history is available here).

As the year comes to a close, we are happy to see usage of the validator more than double from the previous year. For the new year, we will continue to strive to have the best iCalendar validator available on the web with continued support and development, and as always, welcome feedback from users.

RFC 7986 Specification Added

A new iCalendar specification was officially released in October 2016.  RFC 7986, entitled "New Properties for iCalendar", adds to the original iCalendar RFC by defining new properties to support conferencing systems and to the main VCALENDAR object including a calendar name, description and refresh interval. This RFC has been added to the specifications section at this site and the iCalendar history has been updated to reflect the new RFC.

November Update Brings JSON Support to Validator

The November update for's iCalendar validator adds JSON support. JSON is a data format that is typically used by JSON supported web applications to provide data processing when the HTML formatted data is not sufficient. Third party debugging tools are one example. JSON support is available when validating by URL, where two permalinks are now displayed: one for the HTML formatted results of the validation and one for the JSON formatted results.  The JSON permalink is simply the HTML permalink with the string "&json=1" appended to it.

JSON support adds another unique feature of our validator. We strive to have the best iCalendar validator available today on the web with continued support and development of enhancements like this one.

Spammers Target Apple iCal Users

Spammers are always looking for new ways to target their message that will bypass (at least temporarily) standard spam tracking software.  A recent target was Apple's iCal application through the use of iCalendar invites.

Read more: Spammers Target Apple iCal Users

New iCalendar News Section

We have begun a new section here at iCalendar News. This section will contain iCalendar related news articles, including industry news and news relating to our own site, . If you find an interesting iCalendar news story, we would love to hear about it. Send us a comment in the contact us section of this web site.