We're getting ready to release 0.6.3. I've built a release candidate for testing. Please give your apps a whirl with `meteor --release 0.6.3-rc1` and report back.
* Add new `check` package for ensuring that a value matches a required
type and structure. This is used to validate untrusted input from the
* Use Websockets by default on supported browsers. This reduces latency
and eliminates the constant network spinner on iOS devices.
* With `autopublish` on, publish many useful fields on `Meteor.users`.
* Files in the 'client/compatibility/' subdirectory of a Meteor app do
not get wrapped in a new variable scope. This is useful for
third-party libraries which expect `var` statements at the outermost
level to be global.
* When using the `http` package on the server synchronously, errors
are thrown rather than passed in `result.error`
* The `manager` option to the `Meteor.Collection` constructor is now called
`connection`. The old name still works for now. #987
* The `localstorage-polyfill` smart package has been replaced by a
`localstorage` package, which defines a `Meteor._localStorage` API instead of
trying to replace the DOM `window.localStorage` facility. (Now, apps can use
the existence of `window.localStorage` to detect if the full localStorage API
is supported.) #979
* Upgrade MongoDB from 2.2.1 to 2.4.3.
* Upgrade CoffeeScript from 1.5.0 to 1.6.2. #972
* Faster reconnects when regaining connectivity. #696
* `Email.send` has a new `headers` option to set arbitrary headers. #963
* Cursor transform functions on the server no longer are required to return
objects with correct `_id` fields. #974
* Rework `observe()` callback ordering in minimongo to improve fiber
safety on the server. This makes subscriptions on server to server DDP
more usable.
* Use binary search in minimongo when updating ordered queries. #969
* Fix EJSON base64 decoding bug. #1001
* Support `appcache` on Chromium. #958