Apple has just rolled out the iPhone 3.1.3 update, which fixes a battery meter bug along with “a number of security updates related to CoreAudio, ImageIO, Recovery Mode and WebKit.” Simply sync the handset with iTunes and you’re ready to go.

The update also reportedly resolves an issue where third-party applications would not launch in some instances. It also addresses a bug that could cause applications to crash when using the Japanese Kana keyboard.

[via Appleinsider – image via]