[nebula]

I checked the character, it is anything but weird. It is a valid character in a language used by millions of people. For those curious: It is a Telugu character; Telugu is one of several widely spoken languages in India.

[Manishearth]

The ZWNJ is definitely weird -- ZWNJ on Telugu isn't really useful.

However the crash also occurs with a Bengali sequence, and ZWNJ does have an effect in Bengali, so that sequence is not "weird", if perhaps rare.

[reaperducer]

I guess it depends on your definition of "widely spoken."

According to Wikipedia, the number of people speaking Telugu is 0.97% of the world. It's not even a statistical margin of error.

Still, how hard can it be to have a machine step through all of the possible combinations of every iOS-supported character set and jam them into iMessage to see if they're failsafe?

[1]: https://en.wikipedia.org/wiki/Telugu_language

[lostmsu]

1%? Are you kidding? That's over 70 million. It's on the order of population of Germany, and 10 times more, than Swedes.