Calendar:Lightning:0.1:Release Notes

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This is a draft; it currently describes the first release candidate builds for Lightning 0.1 (0.1RC1). There may be additional serious bugs in the 0.1 blocker list but not yet documented here.

What is Lightning 0.1?

Lightning 0.1 is an embedding of the Mozilla calendar code specifically designed to run inside Mozilla Thunderbird 1.5. This release is a preliminary, non-production release designed to showcase the work that's been done and allow contributors to help us test it out. True email / calendar integration is planned, but that is not part of this release.

What can Lightning 0.1 do?

  • Help you keep track of your personal schedule
  • Subscribe to calendars on the Internet (via HTTP/WebDAV)

Important things to know before trying Lightning 0.1

  • Modifying ICS calendars or entries created by programs other than Lightning may result in data-loss.
  • Editing calendars by more than one user may result in data-loss
  • There is not yet an Undo/Redo mechanism for calendar operations.
  • Item recurrence and alarms have not been heavily tested.
  • This is a preliminary release, and despite our best efforts, may have other bugs that can eat your data. Always make regular backups! There is information about profile directories and the WebDAV Calendar Backup System that may be helpful.
  • There are a number of important known issues

Missing/Incomplete Features

There are a number of parts of Lightning that are not yet complete or still have issues. Important such features include:

  • Printing support is minimal.
  • CalDAV support is extremely basic, has issues, and is difficult to set up
  • Offline support only works for local calendars.
  • Syncing with other calendar software (such as handheld PIM devices) is not supported.
  • Localization is not yet supported (though it is probably possible to do).

Downloading Lightning 0.1RC1

  • We have a release candidate for Lightning 0.1. Chances are good that there will be at least one more release candidate before we finalize 0.1.
  • Pick the appropriate XPI file for your platform, save it to disk from your browser, and then install it in Thunderbird 1.5 or 1.5.0.*.
  • The first time you run Thunderbird after installing Lightning, be sure to go to the Lightning pane in the Preferences or Options dialog and manually set your timezone correctly, and then restart Thunderbird again. This will prevent your events from being pinned to the wrong timezone.
  • Read at least the first two sections of the Known Issues page.
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