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As a quick search will reveal, Vodafone don't comment on if / when a firmware update will be available for a device. For further information on why they don't, please see the link below:
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I don't blame you wanting the latest firmware available which helps to introduce new features , deal with bugs and adds security patches in most cases.
Keep checking the Software Update section of your phone and as soon as it's been checked by Vodafone to ensure it does not clash in anyway with anything I'm sure they'll release any relevant firmware in batches / waves.
I hope you receive it as soon as possible.