Concrete Decking/Coping Cracks

[Poolboy6]

Hello--my pool is 21 years old and the decking goes to the edge so technically it is also the coping. (Photos Attached).
I've tried to repair it in the past with various bonding agent, etc--can anyone recommend a product or a solution to fix this?

 

[Patrick_B]

Someone may have some suggestions, but I'm thinking with the age of the pool and condition, it may be time for a major reno, especially if there is much more of that.