received a slew of updates. The most notable of these updates is the option to use Google Spreadsheets offline. If you enable offline access (directions here) for your Google Drive account and use Chrome as your browser, you can work with your spreadsheets offline.
Some of the other new features of Google Spreadsheets are filter views, improved speed, colored sheet tabs, and function help. Filter views (directions for use here) allow you to save and share different views of your data without affecting how others view the same shared data. Function help is going to be a great feature for new or infrequent Spreadsheets users. Function help provides example, guidance, and help in identifying errors when running functions on your spreadsheets.