ip2region 2.10.0 Release: New C# and Node.js Clients, Benchmarks, and Fixes

ip2region (2.0‑xdb) is an offline IP data management framework and location library that supports billions of IP ranges, offers query latency in the 10‑microsecond range, and provides XDB data format generation and query implementations for many mainstream programming languages.

Version 2.10.0 adds several updates:

New C# query client implementation (see C# binding ).

Default benchmark result for the C# client: IP2Region.SearchTest.exe bench --db=../../../../../data/ip2region.xdb --src=../../../../../data/ip.merge.txt Bench finished, {cachePolicy: vectorIndex, total:3417955, took:00:00:48.0082981, cost:0 ms/op}

New Node.js query client implementation (see Node.js binding ).

Default benchmark result for the Node.js client: node ./tests/bench.app.js options: dbPath: ../../data/ip2region.xdb src: ../../data/ip2region.xdb cache-policy: content Bench finished, {cachePolicy: content, total:3417955, took:20.591887765s, cost:6.02462225658325μs/op}

Python XDB searcher bug fix ( commit link ).

Disabled buffer‑related functions for C, Lua, Java, Go, and PHP.

Java Maven dependency snippet: <dependency> <groupId>org.lionsoul</groupId> <artifactId>ip2region</artifactId> <version>2.6.5</version> </dependency>

The update continues to provide high‑performance offline IP lookup while expanding language support and improving stability.