Android 2.2 Froyo vs Android 2.2.1
Any software needs to be maintained by its creators in order for it to keep up with the needs of the users. Android, the smartphone operating of Google, is no exception to this and its update cycle and has been pretty quick. There have been major updates and minor ones with Android 2.2 Froyo and Android 2.2.1 being respective examples. The main difference between Android 2.2 and Android 2.2.1, as you may have already deduced, is that the former is a major update while the latter is just a minor one.
Android 2.2, codenamed Froyo for Frozen Yogurt, is a major revision that introduced a number of new features. It can be downloaded from the respective phone makers and installed on the phone with the help of a computer. You can also visit their respective shops and have them do it for you. With major updates, it is almost guaranteed that users will find some bugs that were previously unknown. The creators then create patches to solve these problems as they appear; For Froyo, this is Android 2.2.1. As Froyo is just a very small patch, it is released OTA or Over The Air. You just wait for your service provider to send you a message asking prompting you that it will install the patch, which is done right after you confirm it.
Google did not release a changelog on what was actually done with the Android 2.2.1 patch so there is no definitive list of the changes. But, there is some consensus on what they noticed after the patch. The first is the better handling of the connection to Microsoft Exchange, which users reported to cause battery drain with Froyo. It is also believed that Android 2.2.1 fixes some security holes found on the initial release of Froyo.
Aside from fixes, Android 2.2.1 is believed to introduce performance tweaks that alleviate bottlenecks and allow the device to run faster. This is in response to some Galaxy S users who’ve experienced some lagging issues with their handsets after updating to Froyo. But, the tweaks should apply to everyone, thereby improving the overall experience.
Summary:
1.Froyo is a major version of Android while 2.2.1 is just a minor patch
2.Android 2.2.1 is released over the air while Froyo is not
3.Android 2.2.1 addresses several issues found on Froyo
4.Android 2.2.1 introduces a number of performance tweaks to Froyo