What is 1.1+ protocol?

General
1

In the DOCS, at URLConnection we can read

imatge

On Internet I’ve found information about 1.1 protocol but nothing about 1.1+
Can anyone give me some help? Thanks

2

this should mean 1.1 and above ?

3

It means 1.1 and up.

4

Thank you both.
It was so simple!