The U.K. Financial Conduct Authority (FCA) is revamping the London Stock Exchange (LSE) rules, but more changes may be needed to achieve growth and attract initial public offers (IPOs), experts said.

In a bid to create more business, the LSE is about to implement the most significant rule changes in 30 years. The FCA published a simplified listings regime that replaces the existing premium and standard categories with a single category, which will go into force July 29.

The FCA promised the new regime “ensures investors will have the information they need to make decisions about their money, while maintaining appropriate investor protections,” according to a press release issued Thursday. However, the U.K. financial regulator admits that removing the requirement for shareholders to vote on “significant or related party transactions” and the introduction of more “flexibility around enhanced voting rights” will lead to greater risk.