CPIs between programs with anchor versions: step by step to Raydium-Cp-Swap

As an anchor developer, you will probably know the concept of a Cross (CP) replacement program, which allows you to launch different programs at the top of anchor blockchain without reducing. However, if you use a library such as “Raydium-CP Replacement”, it is crucial to understand how CPI (interoperability of the cross-program) is between two programs that use different versions of anchors.

Problem: Reduce

When you start a program with the older version of the anchor, at the top of another program, a newer version can cause problems due to architecture and difference in software. The resignation of the program plays a role here. However, if you are using Raydium-CP-SWAP, which uses the Sidre version of 0.29.0 (Code), you may be worried about reducing the program.

SOLUTION: CPI without reducing

To solve this problem, we examine some CPI approaches that use two different versions of anchors:

• Update a new program : Update the older anchor version (for example, 0.30.1) to match or compatible with the new anchor version (0.29.0). To do this, it requires careful consideration of software architecture and compatible problems.

• Use a layer of compatibility : perform a layer of compatibility, such as a unique directory or service that distracts the difference between the sidra versions. In this way, you can ensure that the program communicates with both versions without worrying about the reduction.

• Optimize compatibility : If none of the above options are possible, the program will be more compatible with different versions of the anchor. For example, you can rewrite your code in a way that is more appropriate for these anchor versions.

Implementation

We are focused on this article on the first approach: updating a new program to match or compatible with the older version of the anchor. Here’s an example of how to update the code program using Raydium-CP-SWAP ':

rust

Use Raydium_cp_Swap :: {anchorversion, program};

Use Anchor_lang :: Program :: Program Program;

FN Main () -> Programpresult {

May the Mut = Anchorstore service provider :: New (& Key :: from_stanic (b "YourProgram_name"));

service provider.Set_next_version (0.29.0);

// Update the program to meet or compatible with 0.30.1

What is the supplier.

Be updated_ program = service provider.get ();

// You can now start your program at 030.30.1 using an updated directory

Ok (())

Iche

`

Conclusion

CPI challenges between programs that use two different versions of anchors can be a challenge. However, research by layers of updates and compatibility or optimization of compatibility, you can provide a smooth transition to new versions of anchors. Remember to consider the compromise of the program update on the potential effects of performance.

If you are looking for more information on the implementation of “Raydium-CP-SWAP” or finding compatibility solutions, feel free to ask!