This release adds a few new features, and fixes several issues:

1. DTSTAMP must be specified in UTC
2. ORGANIZER e-mail addresses are case-insensitive
3. Repairing BASE64 encoded v3.0 vCards

Upgrade sabre/vobject by running:

composer update sabre/vobject

Full changelog can be found on GitHub

This release now prevents infinite loops on empty xml elements.

Upgrade sabre/xml by running:

composer update sabre/xml

Full changelog can be found on GitHub

This release now prevents infinite loops on empty xml elements.

Upgrade sabre/xml by running:

composer update sabre/xml

Full changelog can be found on GitHub

This release now prevents infinite loops on empty xml elements.

Upgrade sabre/xml by running:

composer update sabre/xml

Full changelog can be found on GitHub

This release now makes sure that files that are siblings of directories, are reported as files.

Upgrade sabre/dav by running:

composer update sabre/dav

Full changelog can be found on GitHub

Changes:

1. Creating a new calendar on some MySQL configurations caused an error.
2. Added support for filtering vCard properties in the addressbook-query REPORT.

Upgrade sabre/dav by running:

composer update sabre/dav

Full changelog can be found on GitHub

This release now properly detects xml parse errors in parseCurrentElement() edge-cases.

Upgrade sabre/xml by running:

composer update sabre/xml

Full changelog can be found on GitHub

This release now properly detects xml parse errors in parseCurrentElement() edge-cases.

Upgrade sabre/xml by running:

composer update sabre/xml

Full changelog can be found on GitHub

• Now requires PHP 7.0+
• Supports sabre/event 4.x and 5.x
• Depends on sabre/uri 2.
• hhvm is no longer supported starting this release.
• It's now possible to supply request/response bodies using a callback function. This allows very high-speed/low-memory responses to be created.
• Strict typing is used everywhere this is applicable.
• Removed URLUtil class. It was deprecated a long time ago, and most of its functions moved to the sabre/uri package.
• Removed Util class. Most of its functions moved to the functions.php file.
• The $method and $uri arguments when constructing a Request object are now required.
• When Sapi::getRequest() is called, we default to setting the HTTP Method to CLI.
• The HTTP response is now initialized with HTTP code 500 instead of null, so if it's not changed, it will be emitted as 500.
• `Sending charset="UTF-8" on Basic authentication challenges per RFC7617.
• Added support for SERVER_PROTOCOL HTTP/2.0
• Previous CURL opts are not persisted anymore
• Final release

Upgrade sabre/http by making sure your composer.json has ~5.0 as a version requirement, and then just run composer update.

Full changelog of this release can be found on GitHub.

This release adds a few new features, and fixes several issues:

1. Serialization performance improvements.
2. Fixes in iTip for handling BYDAY=SA,SO.
3. Fixes in iTip handling of SCHEDULE-FORCE-SEND.

Upgrade sabre/vobject by running:

composer update sabre/vobject

Full changelog can be found on Github