APPLE has released previews of a number of new emojis due to be rolled out later this year - including a range of disability-themed designs - to mark World Emoji Day.

The new emojis, which include characters in different types of wheelchair as well as designs showing a partially-sighted person with a cane and a deaf person, are among the new designs that will be made publicly available in the autumn.

The preview, which also includes new emoji depicting guide dogs as well as a sloth, flamingo, butter and falafel, has been published to coincide with World Emoji Day today, Wednesday.

Last year, Apple said it wanted to improve the representation of those with disabilities, submitting a number of designs to Unicode after consulting a number of campaigns and charities on the issue.

Earlier this year, 60 new designs were approved by Unicode to add to the official library of characters.

The update also includes a number of new variations for gender and skin tones for the 'people holding hands' emoji, enabling users to create a wider range of mixed gender and ethnicity couples when using emoji.

And a new 'drop of blood' icon has been suggested by Unicode as being used by women to offer a new way to talk about menstruation.

It follows a campaign by girls' rights charity Plan International UK to introduce a period-themed emoji.

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The 230 emojis approved for release in 2019. Image: Emojipedia Sample Image Collection.

The new designs were confirmed earlier this year by the Unicode Consortium, the body which maintains and regulates the library of characters.

Other highlights include a yawning face, orangutan, otter and banjo.

A much requested white heart emoji is now also available for the first time.

The new emojis are due to appear on your phone in the autumn after you install the latest update.