🚀 New Features

• Middleware/encryptCookie: Add cookie name authentication for EncryptCookie middleware by @gaby in https://github.com/gofiber/fiber/pull/3788
• Middleware/proxy: Add BodyStream() logic to adaptor.FiberHandler middleware by @grivera64 in https://github.com/gofiber/fiber/pull/3799
• Client: Add support for HostClient and LBClient by @gaby in https://github.com/gofiber/fiber/pull/3774
• Native support for net/http and fasthttp handlers by @gaby in https://github.com/gofiber/fiber/pull/3769
• Add support for Express.js style req/res handlers by @gaby in https://github.com/gofiber/fiber/pull/3809
• Add support for DisableAutoRegister of HEAD routes by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3817
• Add support for handling unsupported HTTP methods as HTTP 501 by @gaby in https://github.com/gofiber/fiber/pull/3854
• Add support for ReloadViews() by @gaby in https://github.com/gofiber/fiber/pull/3876
• Expose startup message customization hooks by @efectn in https://github.com/gofiber/fiber/pull/3824

🧹 Updates

• Middleware/adaptor: prevent CopyContextToFiberContext panic and add comprehensive test coverage by @sixcolors in https://github.com/gofiber/fiber/pull/3770
• Middleware/adaptor: Add flushing-related unit tests for net/http adaptor by @grivera64 in https://github.com/gofiber/fiber/pull/3807
• Middleware/encryptCookie: Return error during EncryptCookie failure by @gaby in https://github.com/gofiber/fiber/pull/3842
• Client: Preallocate slice size in Client::Param() by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3782
• Reduce allocations in Request (saves ~16% B/op) by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3768
• Make boundary a const by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3783
• Skip locking garbage collector if nothing to delete by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3787
• Reduce the memory usage of cacheableStatusCodes by @ZihxS in https://github.com/gofiber/fiber/pull/3789
• Merge duplicate constants by @jsoref in https://github.com/gofiber/fiber/pull/3812
• Improve propagation of context.Context by @gaby in https://github.com/gofiber/fiber/pull/3822
• Inline Request state wrappers by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3827
• Remove unneeded "utils" alias by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3834
• Benchmark for cache miss case by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3836
• Add FullPath() helper to context by @gaby in https://github.com/gofiber/fiber/pull/3837
• Handle nil map targets in Binder by @gaby in https://github.com/gofiber/fiber/pull/3839
• Extracted generic releasePooledBinder function by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3841
• Refactor internal errors to use sentinel values by @gaby in https://github.com/gofiber/fiber/pull/3864
• Test HEAD request compliance by @gaby in https://github.com/gofiber/fiber/pull/3868
• Improve OPTIONS wildcard regression test by @gaby in https://github.com/gofiber/fiber/pull/3869
• Improve byte-range handling for SendFile() by @gaby in https://github.com/gofiber/fiber/pull/3870
• Use int64 when dealing with HTTP Ranges by @gaby in https://github.com/gofiber/fiber/pull/3874

🐛 Bug Fixes

• Middleware/limiter: Fix default value for MaxFunc in Limiter middleware by @gaby in https://github.com/gofiber/fiber/pull/3871
• Middleware/recover: Fix recover middleware panic output formatting by @gaby in https://github.com/gofiber/fiber/pull/3816
• Middleware/session: correct fresh flag logic in getSession by @sixcolors in https://github.com/gofiber/fiber/pull/3825
• Fix spelling issues by @jsoref in https://github.com/gofiber/fiber/pull/3813
• Fix fatal error calls in adapter_test.go by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3810
• Fix usage of runtime RO data for ppc64 and s390x platforms by @gaby in https://github.com/gofiber/fiber/pull/3772
• Respect DisablePathNormalizing during client requests by @gaby in https://github.com/gofiber/fiber/pull/3773
• Always close form file by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3786
• Fix gocritic httpNoBody and hugeParam issues by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3855
• Prevent memory corruption in internal memory storage from pooled buffers by @sixcolors in https://github.com/gofiber/fiber/pull/3828
• Avoid writing into released Response in core::execFunc() by @arturmelanchyk in https://github.com/gofiber/fiber/pull/3830
• Remove Flash Cookie from Response headers after parsing by @gaby in https://github.com/gofiber/fiber/pull/3840
• Fix binder splitting for pointer-backed slice fields by @gaby in https://github.com/gofiber/fiber/pull/3844
• Execute middleware routes when handling errors by @gaby in https://github.com/gofiber/fiber/pull/3846
• fix copying of key/values in internal/memory by @sixcolors in https://github.com/gofiber/fiber/pull/3829
• Fix maintain CustomCtx across middlewares by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3852
• Enhance Body handling in setConfigToRequest for better type su… by @K0ng2 in https://github.com/gofiber/fiber/pull/3820

🛠️ Maintenance

• Replace release-drafter autolabel with fuxingloh/multi-labeler by @gaby in https://github.com/gofiber/fiber/pull/3872
• Golangci-lint issue for go1.25.0 by @laughing-nerd in https://github.com/gofiber/fiber/pull/3775
• Add automation for v3 label assignments by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3845
• Update workflow path filters for Go module changes by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3856
• Improvements to GitHub Workflows by @gaby in https://github.com/gofiber/fiber/pull/3857
• Update release-drafter workflow by @gaby in https://github.com/gofiber/fiber/pull/3860
• Add support for codespell in spell-check workflow by @gaby in https://github.com/gofiber/fiber/pull/3850
• Add spell check CI workflow by @gaby in https://github.com/gofiber/fiber/pull/3814
• Fix autolabeler for release-drafter by @gaby in https://github.com/gofiber/fiber/pull/3865
• Enable manual workflow dispatch for CI by @ReneWerner87 in https://github.com/gofiber/fiber/pull/3881
• build(deps): bump github.com/valyala/fasthttp from 1.65.0 to 1.67.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3790
• build(deps): bump golang.org/x/net from 0.44.0 to 0.45.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3791
• build(deps): bump github/codeql-action from 3 to 4 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3792
• build(deps): bump golang.org/x/text from 0.29.0 to 0.30.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3797
• build(deps): bump golang.org/x/crypto from 0.42.0 to 0.43.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3796
• build(deps): bump golang.org/x/net from 0.45.0 to 0.46.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3795
• build(deps): bump actions/setup-node from 5 to 6 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3804
• build(deps): bump github.com/shamaton/msgpack/v2 from 2.3.1 to 2.4.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3808
• build(deps): bump github.com/valyala/fasthttp from 1.67.0 to 1.68.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3819
• build(deps): bump github.com/tinylib/msgp from 1.4.0 to 1.5.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3823
• build(deps): bump github.com/gofiber/utils/v2 from 2.0.0-rc.1 to 2.0.0-rc.2 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3853
• build(deps): bump golang.org/x/crypto from 0.43.0 to 0.44.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3863
• build(deps): bump golang.org/x/net from 0.46.0 to 0.47.0 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3861
• build(deps): bump github/codeql-action from 4.31.2 to 4.31.3 by @dependabot[bot] in https://github.com/gofiber/fiber/pull/3866

📚 Documentation

• Fix typos in some files by @khanhkhanhlele in https://github.com/gofiber/fiber/pull/3847
• Document usage of reverse proxies for SendEarlyHints by @akilesh1706 in https://github.com/gofiber/fiber/pull/3778
• Fix broken link in the Routing guide by @guerzon in https://github.com/gofiber/fiber/pull/3831

New Contributors

• @akilesh1706 made their first contribution in https://github.com/gofiber/fiber/pull/3778
• @laughing-nerd made their first contribution in https://github.com/gofiber/fiber/pull/3775
• @jsoref made their first contribution in https://github.com/gofiber/fiber/pull/3812
• @K0ng2 made their first contribution in https://github.com/gofiber/fiber/pull/3820
• @guerzon made their first contribution in https://github.com/gofiber/fiber/pull/3831
• @khanhkhanhlele made their first contribution in https://github.com/gofiber/fiber/pull/3847

A fully-detailed view of all new features and the migration guide is available in our https://docs.gofiber.io/next/whats_new

Full Changelog: https://github.com/gofiber/fiber/compare/v3.0.0-rc.2...v3.0.0-rc.3