An insurer holding a certificate of authority for life insurance and any other proper class on December 31, 1989, shall be governed by the provisions of Section 700.05, 10510, and 10511 in effect on December 31, 1989, until December 31, 1999. After December 31, 1999, any insurer holding a certificate of authority for life insurance and any other proper class shall meet the capital requirement of Sections 10510 and 10511 as become effective January 1, 1990.