You can look forward to a fixed 3% increase in your pension payment amount (not to exceed $25 per month or $300 annually) beginning the second October after your retirement effective date. For example, if your retirement effective date is Dec. 1, 2023, your first increase will be in October 2025.
Your post-retirement increase doesn't compound, but it does accumulate. So, assuming you're eligible for the maximum increase, every October you can expect $25 more per month than you received during the previous year.