Support ioredis v6 in peerDependencies

[juancarlosjr97]

Summary

ioredis v6.0.0 was released on 2026 07 31. The current peerDependencies in ioredis-mock only allows ioredis v5, which blocks projects that upgrade to ioredis v6 from installing ioredis-mock without peer dependency conflicts.

Current State

In package.json:

"peerDependencies": {
  "@types/ioredis-mock": "^8",
  "ioredis": "^5"
}

Proposed Change

Update the peerDependencies range to also support v6:

"peerDependencies": {
  "@types/ioredis-mock": "^8",
  "ioredis": "^5 || ^6"
}

Notable Breaking Changes in ioredis v6

From the v6.0.0 release notes:

• ioredis now requires Node.js 20 or newer
• RESP3 is used by default; protocol: 2 retains the v5 wire protocol
• Adds RESP3 support (Add RESP3 redis/ioredis#2127)

Additional Considerations

• Verify that the mock still behaves correctly against ioredis v6, especially regarding RESP3 default behavior
• Consider updating the ioredis devDependency (currently ^5.8.2) to run the test suite against v6
• The engines field currently specifies node >=12.22, which may need review given the ioredis v6 requirement of Node.js 20 or newer

[juancarlosjr97]

Any update @kibertoad?

[kibertoad]

dunno, opened PR yesterday, waiting for a review :-D

[juancarlosjr97]

Sorry, for a moment I thought it was opened a while ago @kibertoad, even though it clearly says just 16 hours ago so I missed it! I did not mean to appear pushy!