Before doing birds and parkour when although cocos2d-x Out Of The 3.0 version, but still alpha version. At that time, I roughly looked at it and found a lot of changes, so I still use 2.2.3 for the project. The day before yesterday, we saw the official release of rc2. Haha, what version is this. The rc name should be the official release of the candidate version, that is, the next version is the release version. But I see the version numbers of rc0, rc1, and rc2... How many rc versions will be released. I have decided to explain the new features of version 3.0 in my new book, so I need to know how to write this version. I read the official documents and almost got scared. I have heard that version 3.0 has changed a lot, but I didn't expect it to be so big. This is basically two engines, I think. The OC mode is eliminated and the C ++ 11 mode is introduced. That is to say, the previous part was killed like the OC structure, and the labels (LabelTTF/LabelBMFont/LabelAtlas) were re-designed with the new features of C ++. The renderer (renderer) was re-designed) redo the event dispatcher and integrate the physical engine (only chipmunk2d, wood has box2d). The naming rules change (CC prefix is eliminated, and the method for getting an instance from a single instance is changed to getInstance. There are quite a few) specific can see the official notes list: https://github.com/cocos2d/cocos2d-x/blob/develop/docs/RELEASE_NOTES.md#highlights-of-v30 in fact, if you really familiar with the engine structure, look at the official notes list can be followed up quickly, but for the 2.2 series of students used, especially those who are not very familiar with the engine structure, it is estimated that it is a challenge. Take a closer look. Everything can be understood as long as you study it. In addition, the official news has released a video of a cocos3d-x, fishing 3 video, but there is no code to release. It is said that it will take some time to wait until March. Sharpening the knife to 3D