The phrase "already announced changes" is correct and usable in written English.
You can use it when referring to modifications or updates that have been previously communicated or disclosed.
Example: "The team will implement the already announced changes starting next week."
Alternatives: "previously disclosed changes" or "earlier communicated changes".
The company has already announced changes to its pension scheme, such as raising the retirement age, to improve the fund's financial position.
Santander, perhaps as a pre-emptive move, has already announced changes to its American management.But although financial markets are taking the stress tests seriously, many outside the Federal Reserve are questioning their usefulness.
But ministers have already announced changes to the inspection regime with a greater focus on schools in difficulty so that improvements are speeded up.
The government has already announced changes to allow nurseries and childminders in England to look after more children, which it says will make more childcare places available and reduce costs for parents in the "long term".
"We have already announced changes to GCSEs by tackling the re-sit culture and ending the modular structure, as well as introducing marks for spelling, grammar and punctuation for key subjects.
The administration has already announced changes that could weaken enforcement incrementally.
Mr Easterbook has already announced several changes for the American market, the company's biggest and most lucrative, such as a gradual end to its use of chicken raised with antibiotics.
Because of the economic downturn, the Vancouver Olympics Committee (VANOC) has already announced modest changes to save money, but is still promising to stage spectacular Games - within available financial resources.
Founder Mark Zuckerberg already announced the changes on December 1, but today they are going into effect.
CDC has already announced sweeping changes to improve safety, and the OSTP memo aims to "maximize the positive effect of lessons learned" across the U.S. government.
2015 will be no exception to this principle of operation for sharing platforms, as many have already announced planned changes.
