github.com/refraction-networking/utls
v1.8.2
#607 most downloaded on Go modules
refraction-networking/utls
What this package is like to depend on
Last release 21 days ago
02 Aug 2026
Release timing varies
gaps range from 1 weeks to 3 months
Rarely documented
notes for 9 of 38 stable releases
2 versions withdrawn
withdrawn after publishing
9 years old
193 releases · first in 2017
15 releases in the last 12 months
see the full history below
Release timeline
193 releases · Sep 2017 to Aug 2026Releases
latest 60 of 193-
v1.8.3-0.20260802151714-23b1dac19c0602 Aug 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260728190431-ffd9d0fc041028 Jul 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260623165621-880e27d8b0e523 Jun 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260311225311-98f1bbc64c3011 Mar 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260301010127-aa6edf4b11af01 Mar 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260228234307-ddebe3904b4d28 Feb 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260228224516-fc716b2d131628 Feb 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260228210538-4ad58d913f1928 Feb 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260227063248-65880c46bb8027 Feb 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260223095720-1ba92b0f6acd23 Feb 2026 pre-releaseNothing published for this version
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v1.8.3-0.20260203004407-3924d12a89de03 Feb 2026 pre-releaseNothing published for this version
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v1.8.212 Jan 2026Release notes
Open source →Fixes a fingerprint mismatch on the Chrome 120 fingerprint. Credit to telegram @acgdaily for reporting this issue.
What's Changed
Full Changelog: v1.8.1...v1.8.2
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v1.8.2-0.20260728190431-ffd9d0fc041028 Jul 2026 pre-releaseNothing published for this version
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v1.8.114 Oct 2025Release notes
Open source →This update includes several bug fixes.
In particular, users of Chrome>=120 parrots should update ASAP. See #375 for details. Thanks to the original reporter for reporting this issue.
What's Changed
- fix:
PubServerHelloMsg.ServerShareis not exported correctly by @wwqgtxx in #361 - fix: use AES in GREASE ECH for Chrome fingerprint by @mingyech in #375
New Contributors
Full Changelog: v1.8.0...v1.8.1
- fix:
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v1.8.1-0.20250727014725-1130c16e111727 Jul 2025 pre-releaseNothing published for this version
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v1.8.1-0.20250726151951-a5511b382b8126 Jul 2025 pre-releaseNothing published for this version
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v1.8.022 Jul 2025Release notes
Open source →For fingerprinting, this update adds Chrome 133 spec, fixes an issue with the Edge 106 spec, and makes the randomized spec more up to date. It also includes numerous bug fixes and other improvements to the library. Thank you to everyone who contributed!
What's Changed
- Implement Chrome 133+ support by @BRUHItsABunny in #333
- fix: malformed cookie payload by @BRUHItsABunny in #346
- [Cleaner Version] Support for Certificate Compression Algorithm extension in Certificate Request Message by @Juktong in #348
- Update u_parrots.go by @yuhan6665 in #353
- Expose
serverHelloearlier in clientHandshake() by @RPRX in #357 - Export
MlkemandMlkemEcdhein structKeySharePrivateKeysby @RPRX in #358 - Add entropy in generateRandomizedSpec() by @nihiloid in #354
- Remove dependency on cloudflare circl by @mingyech in #352
New Contributors
- @Juktong made their first contribution in #348
- @yuhan6665 made their first contribution in #353
- @nihiloid made their first contribution in #354
Full Changelog: v1.7.3...v1.8.0
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v1.7.4-0.20250722001902-8d029b97527922 Jul 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250704235630-7bcdf24bc1a804 Jul 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250621163342-5abccec539e621 Jun 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250610213342-9d939c3d103810 Jun 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250523200832-e3fa4364dbc923 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250523200425-c5e6a36d237223 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250523194826-54708de6a9ac23 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250523182334-41ce3ba2c2d723 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250521174854-63aeec73c56421 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250519154908-5c20b85b479a19 May 2025 pre-releaseNothing published for this version
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v1.7.4-0.20250519154908-0557f61cb0b819 May 2025 pre-releaseNothing published for this version
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v1.7.314 May 2025 -
v1.7.207 May 2025 -
v1.7.2-0.20250507225715-a7bb5ea040ac07 May 2025 pre-releaseNothing published for this version
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v1.7.123 Apr 2025 -
v1.7.1-0.20250423174651-c567269913b523 Apr 2025 pre-releaseNothing published for this version
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v1.7.020 Apr 2025Release notes
Open source →What's Changed
- Fix Config.InsecureSkipTimeVerify not being respected by @adotkhan in #303
- Fixes session ticket / PSK not set by @adotkhan in #302
- fix: generate ClientHelloSpec only once by @adotkhan in #306
- fix: extMasterSecret mismatch with extended_master_secret extension by @adotkhan in #307
- Merge changes from go 1.23.4 by @mingyech in #323
- build(deps): bump golang.org/x/net from 0.23.0 to 0.33.0 by @dependabot in #326
- Merge changes from go 1.24.0 by @mingyech in #329
- Add Chrome 131 parrot and ML-KEM support by @BRUHItsABunny in #322
- feat: add support for ECH when using custom clienthello specs by @mingyech in #331
- Fix check for TLS downgrade canary by @mingyech in #337
- build(deps): bump golang.org/x/net from 0.33.0 to 0.38.0 by @dependabot in #336
New Contributors
- @mingyech made their first contribution in #323
- @BRUHItsABunny made their first contribution in #322
Full Changelog: v1.6.7...v1.7.0
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v1.6.8-0.20250420231650-f8892761e2a420 Apr 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250403220157-d3b13f74cc1603 Apr 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250314010516-e430876b1d8214 Mar 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250302025818-5ce39b85e60b02 Mar 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250302023238-6c3c017a94dc02 Mar 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250210212311-8bcf883680a110 Feb 2025 pre-releaseNothing published for this version
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v1.6.8-0.20250210193047-cefe226467d810 Feb 2025 pre-releaseNothing published for this version
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v1.6.8-0.20240720032424-23de245734c720 Jul 2024 pre-releaseNothing published for this version
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v1.6.8-0.20240719140327-4a28d1af442519 Jul 2024 pre-releaseNothing published for this version
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v1.6.8-0.20240716055612-841ef937128016 Jul 2024 pre-releaseNothing published for this version
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v1.6.8-0.20240705064751-513679377acc05 Jul 2024 pre-releaseNothing published for this version
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v1.6.727 Jun 2024Nothing published for this version
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v1.6.7-wasm05 Jul 2024 pre-releaseNothing published for this version
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v1.6.7-go1.2412 Mar 2025 pre-releaseNothing published for this version
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v1.6.7-chrome-133-support01 Apr 2025 pre-releaseNothing published for this version
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v1.6.7-chrome-133-fix07 Apr 2025 pre-releaseNothing published for this version
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v1.6.7-chrome-131-support18 Dec 2024 pre-releaseNothing published for this version
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v1.6.7-0.20240627031228-925bfb39ab3c27 Jun 2024 pre-releaseNothing published for this version
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v1.6.603 May 2024Nothing published for this version
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v1.6.6-wasm03 May 2024 pre-releaseNothing published for this version
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v1.6.6-0.20240503143915-4f713392d19c03 May 2024 pre-releaseNothing published for this version
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v1.6.529 Apr 2024Nothing published for this version
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v1.6.5-wasm02 May 2024 pre-releaseNothing published for this version
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v1.6.5-0.20240429163028-1f5d7d78245029 Apr 2024 pre-releaseNothing published for this version
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v1.6.5-0.20240419182949-8f010b39328f19 Apr 2024 pre-releaseNothing published for this version
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v1.6.410 Apr 2024Nothing published for this version