neutralization = redox ?

Not a MUST!!!!!

Consider the following reaction :

NaOH + HCl --> NaCl + H2O

The oxidation number of the ions involved in this reaction does not change after the reaction completely.
Therefore, neutralization is not neccesary to be a redox reaction

Generally, equation for neutralization:
H^+ + OH^- --> H2O
Oxidation number of each species in each substance remains unchanged --> not a redox.