The phrase "announcements of changes" is correct and usable in written English.
It can be used when referring to formal notifications regarding modifications or updates in a particular context, such as a company policy or schedule.
Example: "The company issued announcements of changes to the employee benefits program during the staff meeting."
Alternatives: "notifications of changes" or "updates on changes".
Some announcements of changes have been models of clarity and candor.
Responding rapidly to announcements of changes in stock recommendations gave brokerage firm clients average two-day returns of 1.02 percent and annualized gains of more than 30 percent, the study found.
In keeping with the theme of transition, today's Executive Board meeting featured announcements of changes in senior management at UNICEF, with Martin Mogwanja introduced as its newest Deputy Executive Director.
The one-day session ended instead with an announcement of changes to the isolated country's educational system, including adding a year of free education that analysts saw as potentially popular with the North Korean people.
Last week, following Twitter's announcement of changes to the way links appear in tweets (including the introduction of the domain t.co), Jason Kottke posted my suggestion on his blog, and I discovered I was not alone.
Reuters and Ipsos polled 2,423 people online, three weeks after the Academy's announcement of changes to membership rules, including proposals to double the number of voters from black or ethnic minority backgrounds.
It's a tough time for international students in the UK, and their plight has only been made worse by home secretary Theresa May's recent announcement of changes to the immigration rules.
Amid ongoing embarrassment for the coalition over the surprise budget announcement of changes to VAT on hot takeway food – dubbed the "pasty tax" – Greggs' chief executive, Ken McMeikan, said the chain was inviting its 6 million customers to sign petitions at its 1,600 UK shops from Friday.
Under Greenspan, the Fed's announcement of changes in the federal funds rate target was supplemented by its "bias" statement, indicating which way it was leaning on inflation.
