The phrase "abandon legacy" is correct and usable in written English.
It can be used in contexts where one is discussing the decision to stop using or supporting outdated systems, practices, or technologies.
Example: "In order to innovate and move forward, we must abandon legacy systems that hinder our progress."
Alternatives: "discard outdated practices" or "forsake old systems".
As we approach a period of exponential growth, formerly siloed verticals are abandoning legacy systems and embracing analytics.
A particular focus is placed on abandoned (legacy) sites, such as former tanneries, as well as small-scale artisanal sources, such as lead battery recycling and artisanal gold mining.
Indeed, analysts have long said that the fact that he inherited the presidency from his father prompted him to destroy Syria rather than abandon his legacy.
It's a pivotal moment for enterprise communications, when a skilled sales organization can convince customers to abandon their legacy investment in desk phones and accept a new product that doesn't compromise with the past.
Although in practice they were unable to abandon the legacies of three centuries of Iberian colonial rule, leaders in Latin America turned generally to other political traditions for solutions to the problem of legitimacy.
If China had truly abandoned its legacy of revolutionary communism, he might have written a perceptive and honest biography of Deng Xiaoping.
As the South has modernised, abandoning its legacy of segregation, Republicans once spurned as the anti-slavery party—have not only gained a foothold there, but have feasted on the region's natural conservatism.
According to The Wall Street Journal, the Communications Workers of America claims that Verizon is abandoning its legacy network in certain places, resulting in lower quality of service for landline customers.
We have not abandoned our legacy to the whims of the market but, rather, taken bold steps which merit the praise of our ancestors and which will inspire our youth to recognize the intrinsic value of our national heritage.
