| Name | Number | Function | Use-Case | Importance | Estimated Release |
|---|---|---|---|---|---|
| Concatenates two strings on the stack in Bitcoin Script. | Increases script flexibility by allowing complex data manipulations | Very High | 2024 | |
| Enforces predetermined transaction structure, ensuring that transactions match a specific template. | Enhances security and scalability, useful for congestion control and batched payments. | Very High | 2024 | |
| Adds a signature to a list of signatures in a multi-signature scenario | Simplifies and enhances multi-signature operations, improving efficiency and flexibility | Very High | 2024 | |
| Computes the SHA-256 hash of the top stack item | Provides more hashing options for scripts, enhancing security features | Very High | 2024 | |
| Verifies a signature against a public key and message retrieved from the stack. | Allows for more flexible verification conditions within scripts, useful for complex smart contracts. | High | 2024 | |
| Extracts a substring from a string on the stack | Improves data handling capabilities within scripts, useful for custom transactions | High | 2024 | |
| Splits a string into two parts based on a specified position | Enhances script functionality for data manipulation | High | 2024 | |
| Extracts a left substring from a string on the stack | Improves data handling capabilities within scripts, useful for custom transactions | Moderate | 2024 | |
| Extracts a right substring from a string on the stack | Improves data handling capabilities within scripts, useful for custom transactions | Moderate | 2024 | |
| Reverses the order of bytes in the top stack item | Useful for certain cryptographic operations and data formatting tasks | Moderate | 2024 |
