Version 2.19.1 breaks IE11

[montogeek]

Hello!
After updating to version 2.19.1 from version 2.19.0. I got the following error in IE11:

This function is used by TileGroup component.

But I know that this isn't your code, it is code by Babel transformation, so it seems related to your change log entry "Syntax optimizations to make Babel output smaller.".

While checking changes between these 2 versions you update Babel related libraries.

This function implementation is really different between these 2 versions:
and incompatible with IE11.

Do you think it is possible to revert this change or would you say to don't support IE11?

[montogeek]

I have good news, this was fixed already in:
babel/babel#10171 and released in https://github.com/babel/babel/releases/tag/v7.5.2

So, Could you please upgrade to that Babel version?

[montogeek]

According to this comment, it seems better to update to 7.5.4

[wojtekmaj]

Thanks for letting me know about this problem. I'm on it.

[wojtekmaj]

v2.19.2 is out and should have this issue fixed. Sorry for the trouble.

[montogeek]

@wojtekmaj Thank you!