best way to retain cost centre account code hierarchy at the end of each financial year?

What is the best way to retain a snapshot of the cost centre account code hierarchy at the end of each financial year?

Would I be best to explore the option of versions or different trees?

Example 1

one tree code

*Tree Code XXLCC_FIN_GL_COST_CENTRE_T

but with several versions

e.g. XXLCC_FIN_GL_COST_CENTRE_T_V2324

XXLCC_FIN_GL_COST_CENTRE_T_V2425

XXLCC_FIN_GL_COST_CENTRE_T_V2526

or Example 2

a new tree code each time with one version

Tree code

XXLCC_FIN_GL_COST_CENTRE_2324T

XXLCC_FIN_GL_COST_CENTRE_2324T_V1