Lead Designer Mark Ogilvie noted that a combat revamp was the community's most requested update and he emphasized the value of community feedback. To garner more feedback, Jagex is offering RuneScape members the opportunity to test the update starting June 26th. This limited-access beta will then run through September, giving beta participants the chance to help "shape the future of one of the most important elements of the game."
For the opportunity to participate in this exclusive combat system beta, players need to be an existing member of RuneScape or sign up for membership on the official site by June 1st.
[Source: Press release]