Release v1.9.3

Fixed

• Initialize messageCounter to 2 instead of verifying later. (#1156)

Release v1.9.2

Fixed

• Ensure messageCounter is set before handshake is complete. (#1154)

Release v1.9.1

Fixed

• Fixed a potential deadlock in GetOrHandshake. (#1151)

Release v1.9.0

Deprecated

• This release adds a new setting default_local_cidr_any that defaults to
  true to match previous behavior, but will default to false in the next
  release (1.10). When set to false, local_cidr is matched correctly for
  firewall rules on hosts acting as unsafe routers, and should be set for any
  firewall rules you want to allow unsafe route hosts to access. See the issue
  and example config for more details. (#1071, #1099)

Added

• Nebula now has an official Docker image nebulaoss/nebula that is
  distroless and contains just the nebula and nebula-cert binaries. You
  can find it here: https://hub.docker.com/r/nebulaoss/nebula (#1037)

• Experimental binaries for loong64 are now provided. (#1003)

• Added example service script for OpenRC. (#711)

• The SSH daemon now supports inlined host keys. (#1054)

• The SSH daemon now supports certificates with sshd.trusted_cas. (#1098)

Changed

• Config setting tun.unsafe_routes is now reloadable. (#1083)

• Small documentation and internal improvements. (#1065, #1067, #1069, #1108,
  #1109, #1111, #1135)

• Various dependency updates. (#1139, #1138, #1134, #1133, #1126, #1123, #1110,
  #1094, #1092, #1087, #1086, #1085, #1072, #1063, #1059, #1055, #1053, #1047,
  #1046, #1034, #1022)

Removed

• Support for the deprecated local_range option has been removed. Please
  change to preferred_ranges (which is also now reloadable). (#1043)

• We are now building with go1.22, which means that for Windows you need at
  least Windows 10 or Windows Server 2016. This is because support for earlier
  versions was removed in Go 1.21. See https://go.dev/doc/go1.21#windows (#981)

• Removed vagrant example, as it was unmaintained. (#1129)

• Removed Fedora and Arch nebula.service files, as they are maintained in the
  upstream repos. (#1128, #1132)

• Remove the TCP round trip tracking metrics, as they never had correct data
  and were an experiment to begin with. (#1114)

Fixed

• Fixed a potential deadlock introduced in 1.8.1. (#1112)

• Fixed support for Linux when IPv6 has been disabled at the OS level. (#787)

• DNS will return NXDOMAIN now when there are no results. (#845)

• Allow :: in lighthouse.dns.host. (#1115)

• Capitalization of NotAfter fixed in DNS TXT response. (#1127)

• Don't log invalid certificates. It is untrusted data and can cause a large
  volume of logs. (#1116)

Release v1.8.2

Fixed

• Fix multiple routines when listen.port is zero. This was a regression introduced in v1.6.0. (#1057)

Changed

• Small dependency update for Noise. (#1038)

Release v1.8.1

Security

• Update golang.org/x/crypto, which includes a fix for CVE-2023-48795. (#1048)

Fixed

• Fix a deadlock introduced in v1.8.0 that could occur during handshakes. (#1044)

• Fix mobile builds. (#1035)

Release v1.8.0

Deprecated

• The next minor release of Nebula, 1.9.0, will require at least Windows 10 or
  Windows Server 2016. This is because support for earlier versions was removed
  in Go 1.21. See https://go.dev/doc/go1.21#windows

Added

• Linux: Notify systemd of service readiness. This should resolve timing issues
  with services that depend on Nebula being active. For an example of how to
  enable this, see: examples/service_scripts/nebula.service. (#929)

• Windows: Use Registered IO (RIO) when possible. Testing on a Windows 11
  machine shows ~50x improvement in throughput. (#905)

• NetBSD, OpenBSD: Added rudimentary support. (#916, #812)

• FreeBSD: Add support for naming tun devices. (#903)

Changed

• pki.disconnect_invalid will now default to true. This means that once a
  certificate expires, the tunnel will be disconnected. If you use SIGHUP to
  reload certificates without restarting Nebula, you should ensure all of your
  clients are on 1.7.0 or newer before you enable this feature. (#859)

• Limit how often a busy tunnel can requery the lighthouse. The new config
  option timers.requery_wait_duration defaults to 60s. (#940)

• The internal structures for hostmaps were refactored to reduce memory usage
  and the potential for subtle bugs. (#843, #938, #953, #954, #955)

• Lots of dependency updates.

Fixed

• Windows: Retry wintun device creation if it fails the first time. (#985)

• Fix issues with firewall reject packets that could cause panics. (#957)

• Fix relay migration during re-handshakes. (#964)

• Various other refactors and fixes. (#935, #952, #972, #961, #996, #1002,
  #987, #1004, #1030, #1032, ...)

Release v1.7.2

Fixed

• Fix a freeze during config reload if the static_host_map config was changed. (#886)

Release v1.7.1

Fixed

• Fix IPv4 addresses returned by static_host_map DNS lookup queries being treated as IPv6 addresses. (#877)

Release v1.7.0

Added

• nebula-cert ca now supports encrypting the CA's private key with a passphrase. Pass -encrypt in order to be prompted for a passphrase. Encryption is performed using AES-256-GCM and Argon2id for KDF. KDF parameters default to RFC recommendations, but can be overridden via CLI flags -argon-memory, -argon-parallelism, and -argon-iterations. (#386)

• Support for curve P256 and BoringCrypto has been added. See README section "Curve P256 and BoringCrypto" for more details. (#865, #861, #769, #856, #803)

• New firewall rule local_cidr. This could be used to filter destinations when using unsafe_routes. (#507)

• Add unsafe_route option install. This controls whether the route is installed in the systems routing table. (#831)

• Add tun.use_system_route_table option. Set to true to manage unsafe routes directly on the system route table with gateway routes instead of in Nebula configuration files. This is only supported on Linux. (#839)

• The metric certificate.ttl_seconds is now exposed via stats. (#782)

• Add punchy.respond_delay option. This allows you to change the delay before attempting punchy.respond. Default is 5 seconds. (#721)

• Added SSH commands to allow the capture of a mutex profile. (#737)

• You can now set lighthouse.calculated_remotes to make it possible to do handshakes without a lighthouse in certain configurations. (#759)

• The firewall can be configured to send REJECT replies instead of the default DROP behavior. (#738)

• For macOS, an example launchd configuration file is now provided. (#762)

Changed

• Lighthouses and other static_host_map entries that use DNS names will now be automatically refreshed to detect when the IP address changes. (#796)

• Lighthouses send ACK replies back to clients so that they do not fall into connection testing as often by clients. (#851, #408)

• Allow the listen.host option to contain a hostname. (#825)

• When Nebula switches to a new certificate (such as via SIGHUP), we now rehandshake with all existing tunnels. This allows firewall groups to be updated and pki.disconnect_invalid to know about the new certificate expiration time. (#838, #857, #842, #840, #835, #828, #820, #807)

Fixed

• Always disconnect blocklisted hosts, even if pki.disconnect_invalid is not set. (#858)

• Dependencies updated and go1.20 required. (#780, #824, #855, #854)

• Fix possible race condition with relays. (#827)

• FreeBSD: Fix connection to the localhost's own Nebula IP. (#808)

• Normalize and document some common log field values. (#837, #811)

• Fix crash if you set unlucky values for the firewall timeout configuration options. (#802)

• Make DNS queries case insensitive. (#793)

• Update example systemd configurations to want nss-lookup. (#791)

• Errors with SSH commands now go to the SSH tunnel instead of stderr. (#757)

• Fix a hang when shutting down Android. (#772)