Hi all,

We recently pushed a new version of the Maps API. The major change in this
release is Polylines and Polygons are now rendered in Canvas. This provides
a significant speedup when adding many polys to a map. One known issue is
that polygons are hidden when strokeOpacity is zero. As a workaround, set
your strokeOpacity to something non-zero (say, 1e-32).

Polyline/Polygon stroke/fill colors now need to be specified in full hex
notation (i.e. '#FF0000', rather than 'red' or '#F00'). This has long been
the documented way of providing a color, but previously any CSS color
worked.

We also recently made changes to our terms of service. Please read this blog
post for a summary of the changes:
http://googlegeodevelopers.blogspot.com/2011/04/updates-to-google-maps-apigoogle-earth.html

The changelog for this release is copied below. See the full changelog here:
http://code.google.com/p/gmaps-api-issues/wiki/JavascriptMapsAPIv3Changelog

---

Resolved issues:
  * Fixed regression: Marker icon and shadow no longer transparent on IE6
  * Fixed: Markers no longer flicker on zoom
  * Fixed: Rendering of polygons across tile boundaries near the north/south
poles

Noticeable changes:
  * Polylines and Polygons now rendered in Canvas where possible.
  * LatLngs for events on polylines and polygon borders now snap to the
nearest point on the line.

---

Thanks,
Chris

-- 
http://twitter.com/broady

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