github.com/gofiber/fiber

Fiber v1.14.6 is effectively abandoned and should not be used for new projects. The maintainers moved to v2.x in 2020 with breaking changes, leaving v1.x without security patches or bug fixes. This creates a significant problem for learning and support - most documentation, examples, and community answers now reference v2.x APIs which are incompatible.

The learning experience with v1.x is frustrating because you'll find Express-like routing patterns that seem familiar, but when you encounter issues, GitHub discussions and Stack Overflow answers will direct you to v2.x solutions that don't work. Error messages are basic and don't guide you toward fixes. The API surface felt incomplete compared to mature frameworks, forcing workarounds for common middleware needs.

If you're starting fresh, skip v1.x entirely and use v2.x (or consider standard net/http with chi/gorilla). Using this version means inheriting technical debt immediately, missing out on four years of improvements, and potentially facing unpatched vulnerabilities.

Version 1.14.6 represents the legacy Fiber v1 branch that was completely rewritten for v2 in 2020. This version is essentially deprecated and should not be used for new projects. The community has entirely moved to v2, meaning Stack Overflow answers, GitHub issues, and tutorials all reference the v2 API which is fundamentally different from v1.

The v1 API had significant design issues that were addressed in the v2 rewrite, including context handling, middleware patterns, and error handling. If you accidentally install v1, you'll find yourself unable to follow any modern documentation or examples. Error messages won't help you understand you're on the wrong version, and debugging becomes frustrating when community resources don't match your code.

The actual v2+ releases (which use import path github.com/gofiber/fiber/v2) offer a much better developer experience with Express-like APIs, clear error messages, and excellent documentation. If you're evaluating Fiber, completely ignore v1 and start with v2 or v3.

Version 1.14.6 is essentially deprecated and unmaintained since 2020. The API feels incomplete compared to what you'd expect from a mature web framework. While the Express-like syntax is familiar and the performance claims are appealing, you'll quickly hit walls with missing middleware, outdated dependencies, and breaking changes when you inevitably need to migrate to v2.

The documentation for v1 is sparse and often references v2 features that don't exist in this version. Error messages are cryptic when you misuse the context API, especially around response handling - you'll spend time debugging why responses aren't sent when you forget return statements. Common patterns like request validation and structured error handling require significant boilerplate since built-in helpers are limited.

Community support has entirely shifted to v2, so finding answers for v1-specific issues means digging through closed GitHub issues from 2020. The learning curve is steep not because the framework is complex, but because you're working with an abandoned version while all current examples and discussions reference v2's incompatible API.