Changes

===Migrating from GTK2 to GTK3===

===Migrating from GTK2 to GTK3===

The Sugar platform is migrating from GTK2 to GTK3 to stay relevant with upstream changes and benefit from their efforts. Sugar 0.96 (available in OLPC 12.1 development builds) includes support for a transition period, where both GTK2 and GTK3 activities can coexists, but new Sugar features will only be added to the GTK3 toolkit (e.g. improvements in touchscreen support). Have a read through the [http://wiki.sugarlabs.org/go/Features/GTK3/Porting migration notes], and some [http://python-gtk-3-tutorial.readthedocs.org/en/latest/index.html GTK3 Python tutorials] to get a feel for how things need to be changed. New activities should be developed with GTK3, unless you need to support an existing deployment today using an older build.

The Sugar platform is migrating from GTK2 to GTK3 to stay relevant with upstream changes and benefit from their efforts. Sugar 0.96 (available in OLPC 12.1 development builds) includes support for a transition period, where both GTK2 and GTK3 activities can coexists, but new Sugar features will only be added to the GTK3 toolkit (e.g. improvements in touchscreen support). Have a read through the [http://wiki.sugarlabs.org/go/Features/GTK3/Porting migration notes], and the [http://python-gtk-3-tutorial.readthedocs.org/en/latest/index.html GTK3 Python tutorials] to get a feel for how things need to be changed. New activities should be developed with GTK3, unless you need to support an existing deployment today using an older build.

===Modify Activities===

===Modify Activities===