Cal. Corporations Code § 2301

(a) Except as otherwise expressly provided in this chapter, the provisions of the new law apply on and after the effective date to all corporations referred to in Section 162 existing on the effective date and to all actions taken by the directors or shareholders of such corporations on and after the effective date. (b) Except as otherwise expressly provided in this chapter, all of the sections of the new law governing acts, contracts or other transactions by a corporation or its directors or shareholders apply only to such acts, contracts or transactions occurring on or after the effective date and the prior law governs such acts, contracts or transactions occurring prior thereto. (c) Except as otherwise expressly provided in this chapter, any vote or consent by the directors or shareholders of a corporation prior to the effective date in accordance with the prior law shall be effective in accordance with the prior law and if any certificate or document is required to be filed in any public office of this state relating to such action, it may be filed after the effective date in accordance with the prior law.