Browser upgrade notifications in Gmail
Google’s long-standing browser support policy states that we support the current and previous major releases for modern browsers. In line with that policy, we will be making the following updates to our browser upgrade notifications in Gmail in the coming weeks:
Chrome (current version 35.x)
- we will start showing the upgrade browser banner on v33.x and older, and will show the banner on versions two revisions behind the current stable build moving forward
Firefox (current version 30.x)
- we will start showing the upgrade browser banner on v28.x and older, and will show the banner on versions two revisions behind the current stable build moving forward
Safari (current version 7.x)
- we will start showing the upgrade browser banner on v5.x and older, and will show the banner on versions two revisions behind the current stable build moving forward
Internet Explorer (current version 11.x)
- no change
For more information:
https://support.google.com/a/answer/33864?hl=en
Reference by : www.google.com