We've noted that Google decided to change the maximum length of the snippet used to summarise the content of webpages (also known as meta description). The snippets are now said to be up to 230 characters long, which is a significant change from the 160 previously allowed.
Here you can read the original statement from Google:
"We recently made a change to provide more descriptive and useful snippets, to help people better understand how pages are relevant to their searches. This resulted in snippets becoming slightly longer, on average.”
It is important to stress, that site owners are advised not to change their meta description at the moment. As Danny Sullivan from Google said:
"don’t go expanding your meta description tags. It’s more a dynamic process.”
It means that Google will automatically increase the length of the snippet only in cases when it will make the user's search experience significantly better.
As for today, we are not taking any significant steps in this direction, as we are still waiting for some more detailed information on that matter from Google.