Last release 3 days ago
24 Aug 2026
Ships fairly regularly
a new release about every 2 weeks
Some releases are documented
notes for 10 of 19 stable releases
Nothing withdrawn
no release was ever pulled
10 years old
226 releases · first in 2017
Release timeline
226 releases since 2017Releases
- v0.15.2-0.20260824111241-681d9a82bda124 Aug 2026pre-release
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- v0.15.2-0.20260819102729-ce575dc806e919 Aug 2026pre-release
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- v0.15.16 Aug 2026
Release notes
Open source →This patch release is created to address the issue with the binaries from 0.15.0 (#4960)
Improvements
- The checks to prevent failures similar to 0.15.0 were added.
- Beacon grouping was fixed.
- Explicit setting of the grace period for non-base TRCs is now enforced.
- nil-deref panic on session events after routing table close was fixed.
Dependencies
- Bazel was upgraded to 9.1.1.
- Security updates for quic-go, golang.org/x/crypto, golang.org/x/net, google.golang.org/grpc and others.
New Contributors
- @mkowalski made their first contribution in #4954
Full Changelog: v0.15.0...v0.15.1
- v0.15.1-0.20260727162622-2bd9c299cdbc27 Jul 2026pre-release
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- v0.15.1-0.20260715180952-c83afab1937115 Jul 2026pre-release
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- v0.15.1-0.20260709204646-6c66f135feb89 Jul 2026pre-release
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- v0.15.1-0.20260708202458-0768aef00c508 Jul 2026pre-release
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- v0.15.1-0.20260625121527-be52bab805a725 Jun 2026pre-release
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- v0.15.1-0.20260604131834-c4d1b5bd840b4 Jun 2026pre-release
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- v0.15.1-0.20260422100243-368ef5973c7922 Apr 2026pre-release
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- v0.15.07 Apr 2026
Release notes
Open source →Please use v0.15.1 instead since the binaries for this release were built incorrectly.
New features and improvements
- STUN implementation for NAT traversal was added.
- Applications can now run without a SCION daemon by communicating with the control service directly and running daemon functionality in-process.
- Selection algorithm of the beacon store can now be changed with options.
- Subject template can now be extracted from an existing certificate or CSR.
- Voting certificates can now be created without ISD-AS.
scion-pkiUX was improved.- Beacon diversity calculation bug was fixed.
- Repeated beacon registration errors are now handled gracefully.
- Grace period is considered when checking validity for DRKey.
Documentation
- UDP underlay documentation was updated.
- SIG docs were improved.
Building, testing, code quality
- Code base was modernized with Go upgrade.
- We made it clearer that certain files are generated and should not be edited directly.
Dependencies
- We revered back to using the mattn SQLite driver to address database issues (#4904)
- We're using Go 1.26.0 now.
- Bazel rules were upgraded.
- Security updates for quic-go, golang.org/x/crypto, google.golang.org/grpc and others.
New Contributors
- @jdslab made their first contribution in #4740
- @rolbk made their first contribution in #4868
- @nicorusti made their first contribution in #4895
- @jeltevanbommel made their first contribution in #4906
Full Changelog: v0.14.0...v0.15.0
- v0.14.1-0.20260402085043-3f6735e4d0a72 Apr 2026pre-release
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- v0.14.1-0.20260331230727-cf956bb7099331 Mar 2026pre-release
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- v0.14.1-0.20260330120102-685bd8ecb19730 Mar 2026pre-release
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- v0.14.1-0.20260330114629-1f66c0923d0930 Mar 2026pre-release
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- v0.14.1-0.20260326132406-dd1c1bfeaff126 Mar 2026pre-release
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- v0.14.1-0.20260325143144-35a2b6d8d5d925 Mar 2026pre-release
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- v0.14.1-0.20260316094231-ea645ec789c016 Mar 2026pre-release
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- v0.14.1-0.20260309124933-8b01ba4619409 Mar 2026pre-release
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- v0.14.1-0.20260304085012-bea7df4b35304 Mar 2026pre-release
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- v0.14.1-0.20260218121520-1724cd29c29418 Feb 2026pre-release
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- v0.14.1-0.20260206144937-a201cf5654706 Feb 2026pre-release
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- v0.14.1-0.20260116151421-cce7754b652c16 Jan 2026pre-release
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- v0.14.1-0.20251204093915-ece253328abe4 Dec 2025pre-release
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- v0.14.1-0.20251117135537-d23064e9f66117 Nov 2025pre-release
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- v0.14.010 Nov 2025
Release notes
Open source →What's Changed
New features and improvements
- Connect RPC support was added on server and client side. Happy eyeballs is used on a client side.
- A new beacon extension containing the control and discovery service addresses of the AS was added, so less SVC resolution is done now.
- Pluggable segment registration was implemented.
- Various improvements were done for SQLite usage in the storage layer.
- A simple BPF port filter was added to enable the use of non-XDP raw sockets by the router underlay providers.
- Path MTU calculation was fixed for shortcut paths.
Documentation
- SGRP section was added.
- The demo network tutorial was further improved.
- KMS can now be configured in the TRC signing ceremony builder.
- Various small fixes are included too.
Building, testing, code quality
- We've upgraded to golangci-lint v2, fixing various linter findings at the same time.
- Different graph topologies can be generated and used in tests now.
- Local topology certificate validity was increased.
Dependencies
Various dependencies were updated:
- We're using Go 1.24.2 now.
- gopkg.in/yaml.v3 is used instead of gopkg.in/yaml.v2.
- We cleaned up the tools required for Bazel.
- Security updates for quic-go, golang.org/x/crypto, go-viper/mapstructure/v2 and others.
New Contributors
- @seadog007 made their first contribution in #4764
- @utkn made their first contribution in #4782
- @knmeynell made their first contribution in #4825
- @ddogfoodd made their first contribution in #4844
Full Changelog: v0.13.0...v0.14.0
- v0.13.1-0.20251110070150-63c26fa5bd0610 Nov 2025pre-release
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- v0.13.1-0.20251028091902-019049d63acb28 Oct 2025pre-release
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- v0.13.1-0.20250818091724-bb86f536c5aa18 Aug 2025pre-release
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- v0.13.017 Apr 2025
Release notes
Open source →What's Changed
New features and improvements
- A major refactoring of router was done to enable multiple underlay implementations.
- Handling TCP/SCION packets at the last-mile AS is now supported.
- BGP ASNs in local topologies are now supported.
- Flaky tests were fixed.
- Various changes for running SCION on Windows.
Documentation
- The demo network tutorial had multiple improvements, including an automated Docker setup.
- SIG documentation was updated.
- Various small updates were made as well.
Building, testing, code quality
- We are using Bazel 8.1.1 now. Bazel configuration was overhauled.
- Cross-platform RPM packages are now available.
- New linters were added.
- Lots of small refactorings to improve code quality and use the best code practices.
Dependencies
Various dependencies were updated:
- We are using Go 1.24.0 now.
- Security updates for quic-go, golang.org/x/crypto, golang.org/x/net and others.
- Bazel-related rules to use with Bazel 8.
New Contributors
- @LencigGaer made their first contribution in #4663
- @aaronbojarski made their first contribution in #4690
- @johnstudarus made their first contribution in #4738
- @guilloboi1917 made their first contribution in #4724
Full Changelog: v0.12.0...v0.13.0
- v0.12.1-0.20251028091902-019049d63acb28 Oct 2025pre-release
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- v0.12.1-0.20251013122436-6787965828cd13 Oct 2025pre-release
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- v0.12.1-0.20250930145652-38e79c43faf330 Sept 2025pre-release
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- v0.12.1-0.20250903084722-66ca97f817fd3 Sept 2025pre-release
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- v0.12.1-0.20250813123405-7f774b0bd84613 Aug 2025pre-release
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- v0.12.1-0.20250728130440-8364ada874b428 Jul 2025pre-release
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- v0.12.1-0.20250625122450-379c6c7db20625 Jun 2025pre-release
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- v0.12.1-0.20250317081603-241a2e72ddfc17 Mar 2025pre-release
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- v0.12.1-0.20250218154507-ecb4eaa08a1c18 Feb 2025pre-release
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- v0.12.1-0.20250217133856-c30fb32a09c217 Feb 2025pre-release
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- v0.12.1-0.20250212152555-14c7a71f609812 Feb 2025pre-release
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- v0.12.1-0.20250121123317-6e7f0521434f21 Jan 2025pre-release
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- v0.12.1-0.20250116095901-f6ef8642cea016 Jan 2025pre-release
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- v0.12.1-0.20241224134704-05dfe8158ab424 Dec 2024pre-release
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- v0.12.1-0.20241223103250-0b42cbc4248623 Dec 2024pre-release
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- v0.12.1-0.20241129143332-3c8e30fbdb6429 Nov 2024pre-release
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- v0.12.1-0.20241121055601-a118737fd69e21 Nov 2024pre-release
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- v0.12.1-0.20241120133356-8109a33f2c8c20 Nov 2024pre-release
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- v0.12.1-0.20241115104017-5c3b50dce3ba15 Nov 2024pre-release
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- v0.12.1-0.20241105120659-dd852aa7a8e65 Nov 2024pre-release
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- v0.12.1-0.20241101153335-db3e6c50f2e61 Nov 2024pre-release
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- v0.12.1-0.20241016094009-5cedae9b534616 Oct 2024pre-release
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- v0.12.010 Oct 2024
Release notes
Open source →What's Changed
New Features and improvements
- The dispatcher is gone! Well, mostly. We still have a shim for backward compatibility.
- The migration to ConnectRPC has begun. The first PR has been merged. Many more to come.
- We now build RPM packages for the x86_64 platform. Stay tuned for other platforms as the Bazel rules improve.
- The router code got faster by about 15%.
- For the price of one small patch, SCION can now build for windows too.
- Scion-pki has acquired some new features. Find them in the scion-pki documentation.
Documentation
- We have updated and improved the deployment tutorial.
- The cryptography documentation now includes instructions to use scion-pki and sports a ceremony script builder UI (yes, embedded in the documentation!).
- Added OpenWRT installation instructions.
Configuration Changes
- The unused
QUICconfiguration field is gone from the Control Service's schema. It must be removed from toml files. - The router configuration gained a new field:
router.bfd. This allows to configure BFD on all links by default. Subfields are the same as in the bfd field of links in the topology configuration. The defaults apply to links that do not have an explicit configuration for a given field. Previously, this was done by setting the environment variablesSCION_EXPERIMENTAL_BFD_*. Those are now ignored. - The topology.json file gained a new field:
dispatched_ports. While transitioning away from the dispatcher, SCION applications on dispatcher-less hosts are expected to listen on a restricted port range. This must be set to the same value on updated hosts and on their updated border routers. The recommended value isdispatched_ports="31000 - 32767". This must be configured, there is no safe default. - The field "reconnect_to_dispatcher" is gone. It must be removed from all toml files (i.e. the control service and the SCION daemon).
Building, Testing, and Code Quality
As usual, we've put quite a bit of effort in improving build reliability, burying dead code, simplifying, adding tests, fixing flakes, filling potholes, and complying with best practice and standards (including SCION published specs). Most notable in the latter category were:
- router - race condition: #4282 - Another finding of VerifiedSCION (Thanks @jcp19!)
- router - drop invalid packets packets: #4415, #4558
- router - return SCMP on invalid dst address: #4126
- router - strengthen the checks performed by parsePath: #4524, #4531 - Another findind of VerifiedSCION (Thanks @jcp19 and @mlimbeck!)
- topology - allow peering links between core ASes: #4484
We have also made a small improvement to Wireshark's SCION support: heuristic detection of SCION traffic is now supported. With the removal of the dispatcher and associated limited port range, this became nice-to-have.
Dependencies
We have updated a few of our dependencies. Most notably our minimum Go version, which is now 1.22.7. Also updated are:
- Certifi: 2024.2.2 -> 2024.7.4
- Antlr: 0.6.0 -> 0.6.1
- rules_js: 1.33.1 -> 2.0.0-rc6
- nodejs: latest -> 16.19.0
- pnpm: latest -> 9.4.0
- spectral-cli: 6.11.0 -> 6.11.1
New Contributors
- @mseewer made their first contribution in #4532
- @GioBar00 made their first contribution in #4536
- @martenwallewein made their first contribution in #4610
- @thomasgruebl made their first contribution in #4619
Full Changelog: v0.11.0...v0.12.0
- v0.11.1-0.20241010103401-e6b0576682c710 Oct 2024pre-release
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- v0.11.1-0.20241008083440-eef5cf743f238 Oct 2024pre-release
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- v0.11.1-0.20241004144129-aa917bb458d64 Oct 2024pre-release
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- v0.11.1-0.20240919193131-26103217c80719 Sept 2024pre-release
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- v0.11.1-0.20240919095343-59c70dcadeed19 Sept 2024pre-release
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- v0.11.1-0.20240918205335-296ec950093c18 Sept 2024pre-release
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- v0.11.1-0.20240918144820-a83a906b716618 Sept 2024pre-release
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