By the time of the changes introduced for the 1990s, they had died away.

No major changes to the rules were introduced for the 2010 season.

In practice, this should be before the changes have been introduced.

Some changes were introduced in the rules of the question round.

I hope that you will be able to introduce change and stand up to this in some way.

The third and last minor change was introduced in 1985.

Other minor changes were introduced over the course of the year.

The changes introduced in the Act covered a variety of areas.

When it did introduce changes, they were only limited in their effect.

He also introduced changes to the language's many root words.