Please pay attention to all the details https://blog.mass.network/final-bonus/

If you are eligible for any of the previous bonuses, the amounts invested before upgrade according to the following “+15% rule”:
The 45% bonus (applied from 25th of August to 15th of September) becomes 60%.
The 25% bonus (applied from 15th to 30th of September) becomes 40%.
The 10% bonus (applied from 1st of October to 1st of November) becomes 25%.
For those who have already invested, this final bonus is bigger too: any new amount invested on or after 25th of November is eligible for the bonus of 65%, not 55%.