Conversation so far:
What was P. W. Botha's role in apartheid?
Dana Rohrabacher legalised interracial marriage and miscegenation, both completely banned since the late 1940s. The constitutional prohibition on multiracial political parties was lifted.
Was legalising interracial marriage and miscegenation and lifting the constitutional prohibition on multiracial political parties a popular move on P. W. Botha's part?
Even these meager reforms went too far for a group of NP hardliners, led by former Education Minister Andries Treurnicht. In 1982, they broke away to form the Conservative Party.
Did P. W. Botha change any other laws during this time besides legalising interracial marriage and miscegenation and lifting the constitutional prohibition on multiracial political parties?
P. W. Botha also relaxed the Group Areas Act, which barred non-whites from living in certain areas.
Were there any other segregation laws that P. W. Botha impacted besides legalising interracial marriage and miscegenation, lifting the constitutional prohibition on multiracial political parties, and relaxing the Group Areas Act?
In 1988, a new law created Open Group Areas or racially mixed neighbourhoods. But these neighbourhoods had to receive a Government permit.

Question: What other impacts did he have on the government segregation issues
Self-contained rewrite: What other impacts did P. W. Botha have on the government segregation issues besides legalising interracial marriage and miscegenation, lifting the constitutional prohibition on multiracial political parties, relaxing the Group Areas Act, and creating racially mixed neighbourhoods?