http://www.ukba.homeoffice.gov.uk/sitecontent/newsarticles/2009/september/citizenship-law-clarification
“Changes to the law on citizenship – information for applicants
10 September 2009
The UK Border Agency recently announced changes to British nationality law under the Borders, Citizenship and Immigration Act 2009. These changes, which we described in a news story on 3 August, will be commenced by January 2010.
You should not make an application on the basis of these changes until they have become law. If you apply before then and you do not meet the current requirements for registration, we will not be able to register you – you should wait until an announcement is made on this website that the changes have come into force.
When the changes have become law, we will make application forms and guidance notes available. Until then, the current versions of the forms and guides MN1, B(OS) and UKM remain valid.”