We have three applications (A, B, and C) under the ABC origination. Currently, all test cases for each individual rule type is  created in a single ruleset version ABC_TC:01-01-01 and shared across all applications. From a best-practice perspective, should we:

1. Continue using a single shared test ruleset for all applications?
2. Create separate test rulesets for each application (e.g., A_Test, B_Test, C_Test)?
3. Should we also increment the test ruleset version for every release?
4. Also for automation test suite, should we use the same ruleset version?

Please advise on the recommended approach considering maintainability, versioning, and deployment alignment.