newly commenced ...; just started ...
「開け」 has another reading with different meanings.
beginning; start
年開けの仕事始めは気が引き締まる。
Starting work in the new year makes you feel focused.
梅雨開けの空は抜けるように青い。
The sky after the rainy season ends is piercingly blue.
夜開けの街はまだ静かだった。
The town at dawn was still quiet.