Sourced from github.com/zeromicro/go-zero's releases.

v1.9.3

We are excited to announce the release of go-zero v1.9.3! This release brings several important enhancements and bug fixes that improve the framework's reliability, performance, and alignment with industry best practices.

🎉 Highlights

• Consistent Hash Load Balancing: New gRPC load balancer for session affinity
• gRPC Best Practices: Changed NonBlock default to align with gRPC recommendations
• Improved Distributed Tracing: Fixed gateway trace header propagation
• ORM Improvements: Fixed zero value scanning for pointer destinations

---

✨ New Features

Consistent Hash Balancer Support (#5246)

Contributor: @​zhoushuguang

A new consistent hash load balancer has been added to the zRPC package, enabling session affinity for gRPC services.

Key Features:

• Hash-based request routing to maintain session affinity
• Distributes requests based on a hash key from context
• Minimal request redistribution on node changes
• Built on go-zero's existing core/hash/ConsistentHash implementation

Usage Example:

// Set hash key in context
ctx := zrpc.SetHashKey(ctx, "user_123")
// Requests with the same key will be routed to the same backend
resp, err := client.SomeMethod(ctx, req)

Configuration:

c := zrpc.RpcClientConf{
    Endpoints: []string{"localhost:8080", "localhost:8081"},
    BalancerName: "consistent_hash",  // Use consistent hash balancer
}

Benefits:

• Enables stateful service interactions
• Improves cache hit rates on backend services
• Reduces session data synchronization overhead
• Maintains load distribution while supporting affinity

---

... (truncated)

• 75941ae refactor: simplify getValueInterface function (#5280)
• c706517 fix(orm): properly handle zero value scanning for pointer destinations (#5270)
• 052de3b chore: fix grammar and typos in comments (#5279)
• 866613a Update readme-cn.md (#5266)
• 3d4f6a5 Add company to the user list (#5264)
• d1d47d0 chore(deps): bump go.mongodb.org/mongo-driver/v2 from 2.3.1 to 2.4.0 (#5262)
• d6c8768 feat(zrpc): change NonBlock default to true following gRPC best practices (#5...
• 98423ca fix(goctl): use rest.Serverless for generated integration tests (#5258)
• 4e52d77 fix(trace): use sync.Once to prevent multiple trace initialization (#5244)
• 1fc2cfb fix: gateway trace headers 5248 (#5256)
• Additional commits viewable in compare view

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