Android users have been alerted to review their smartphone software due to a security vulnerability. This concern comes after Google decided to stop supporting Android 4.4, also known as KitKat. The old software version, launched about a decade ago, has now become a security risk. Users who continue to employ it in their devices are more susceptible to hacker attacks. Thus, if you find your smartphone still operates on Android KitKat, it's imperative you immediately upgrade to a newer Android version to protect your device.

Regrettably, older models granted no update option may have to be replaced with a brand new smartphone. However, Google has assured that the issue impacts less than one percent of all devices operating on Android, thereby implying a minimal number of users should face this issue. In addition, it's noteworthy that most companies had already ceased to support Android KitKat, which essentially meant a weakened security for devices operating on it. Hence, while the potential impact is limited, users are advised to verify their phone's Android version for safety.

Moreover, many apps and games are already incompatible with Android 4.4, and Google's decision to terminate support for Google Play Services on it means that the affected devices will have even fewer apps and services available. This decrease in software support can significantly impair the device's functionality and convenience of use. Therefore, Google's decision further emphasizes the need for updating or changing devices.

Particular handsets impacted by Google's decision include models from Samsung, Sony, LG, HTC, CAT, Huawei, Yota Devices, Alcatel, and Doro. These models span different versions and specifications, with certain devices possessing limited RAM that could further hinder their functionality without adequate software support. Users with these devices ought to immediately confirm their Android version and take necessary action.

For unfamiliar users, to identify your Android version, you can navigate through your smartphone settings to 'About Phone' and then select 'Android Version'. This action should disclose the Android version your device operates on. In case of any trouble, you can always seek help or refer to gadget tips and hacks online. Do consider sharing your experience or story with tech platforms to help others navigate similar situations.