Yes. All scores, including all historical scores, are updated each time EPA updates the models behind the 1-100 ENERGY STAR Scores.
We update the historical scores so you will be able to accurately compare your buildings’ energy performance over time. If we didn't update historical scores, you would not be comparing "apples to apples" in your metrics from year to year.
After each score update, your previous scores are no longer accessible in Portfolio Manager. Prior to each score update, we recommended you run a “Performance Highlights” report or create a custom report, then download and save those reports.
Previous ENERGY STAR certifications are not affected by score updates.