Last week, the Nokia N9 began to receive its latest software update, delivering over 1000 quality improvements. This brings the Nokia N9 software to version 40.2012.21-3, or as it’s most commonly known, PR1.3.

While this update adds no new features, it does improve the usability of your device – so we recommend you update.

The main improvements include:

• Mail for Exchange (MfE) now supports client certificates.
• Localisation improvements and support for new error codes with the Facebook app.
• Twitter API changes that reflect the back end infrastructure of Twitter.

As well as these main updates, there are also some general updates.

• AccuWeather widget weather update fixed.
• VoIP calls now work via Skype/Gtalk when in flight mode and connected to WLAN.
• Changing the “week starts on” date within the calendar error now fixed.

There are also a lot of small improvements on network and connectivity performance.

To receive the update, head to the applications section in your Nokia N9 – Settings > applications > Manage applications > Updates (bottom right button) > Refresh. You should see the following screenshots.

Have you updated yet? Noticed any other improvements? Let us know, below.