v2.2.0 is a minor release. Key changes include:

• Introduce session middleware https://github.com/gofiber/fiber/pull/1009;
• Add CacheDuration to Static options https://github.com/gofiber/fiber/pull/1009.

v2.1.4 is a patch release. Key changes include:

• Update Storage interface https://github.com/gofiber/fiber/blob/master/app.go#L44;
• Bump Fasthttp v1.17.0 https://github.com/gofiber/fiber/pull/999.

v2.1.3 is a patch release. Key changes include:

• Add Key to cache middleware https://github.com/gofiber/fiber/pull/983;
• Add Storage to cache middleware https://github.com/gofiber/fiber/pull/976.

v2.1.2 is a patch release. Key changes include:

• Add Storage interface for future adaptors https://github.com/gofiber/fiber/pull/964;
• Add Storage to limiter and cache middleware https://github.com/gofiber/fiber/pull/973.

v2.1.1 is a patch release. Key changes include:

• Pass requestid to locals https://github.com/gofiber/fiber/pull/948;
• Fix links in readme's https://github.com/gofiber/fiber/pull/950 https://github.com/gofiber/fiber/pull/935.

v2.1.0 is a minor release. Key changes include:

• Add ETag middleware https://github.com/gofiber/fiber/pull/926;
• Add child PID's to startup message when Prefork is enabled https://github.com/gofiber/fiber/pull/902.

v2.0.6 is a patch release. Key changes include:

• Add CacheControl option for favicon middleware https://github.com/gofiber/fiber/pull/883;
• Add long-poll to third-party middlewares https://github.com/gofiber/fiber/pull/868.

v2.0.5 is a patch release. Key changes include:

• middleware/cache supports a CacheControl option to enable client-side caching https://github.com/gofiber/fiber/pull/865;
• fiber.Cookie now supports the MaxAge option https://github.com/gofiber/fiber/pull/860.

v2.0.4 is a patch release. Key changes include:

• expvar middleware provides a standardized interface to public variables, such as operation counters in servers https://github.com/gofiber/fiber/pull/841;
• monitor middleware is currently in beta and API design might change! https://github.com/gofiber/fiber/pull/844.

v2.0.3 is a patch release. Key changes include:

• app.Mount allows to mount a fiber instance. https://github.com/gofiber/fiber/issues/737 https://github.com/gofiber/fiber/issues/737;
• utils.UnsafeString replaces utils.GetString https://github.com/gofiber/fiber/pull/833.

v2.0.2 is a patch release. Key changes include:

• ctx.WriteString appends s to response body. #810;
• utils.GetArgument checks if key is in arguments 803.

v2.0.1 is a patch release. Key changes include:

• limiter middleware did not expire blocked keys due to race conditions, this required some patching. https://github.com/gofiber/fiber/pull/789 thnx @ReneW…;
• utils.UUID() had a possibility to generate a duplicate key with multiple threads, this is now safe. https://github.com/gofiber/fiber/pull/786.

v2.0.0 is a major release. Key changes include:

• func(c *fiber.Ctx) error is the new Handler type accepting an error return, this will simplify error handling and create cleaner code because you …;
• fiber.New() takes an optional Config struct as value that will replace the *Settings pointer..

v1.14.6 is a patch release: v2 will be released on 15 september 2020!