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Sourced from github.com/v2fly/v2ray-core/v4's releases.

v4.38.2

Feature

• FakeDNS: Added fakedns+others sniffer , based on v2fly/v2ray-core#697 . Thanks @​yuhan6665 .
• TLS: A SECURITY improvement that allow the remote peer's TLS certificate to be pinned to a known value. Document for TLS is updated.
• Observatory: A component that measure the connectivity of selected outbounds. The document for Observatory is updated.
• Routing : leastPing balancing strategy is added. This strategy will select a outbound that is alive and completed HTTPS GET request in the least time. The document for Routing is updated.

Fixs

• Fixed crashing in fake dns. v2fly/v2ray-core#931 Thanks @​IceCodeNew
• Added IPv6 pool in fake dns by default. v2fly/v2ray-core#925 Thanks @​Loyalsoldier
• Return ErrEmptyResponse for fakedns. v2fly/v2ray-core#926 Thanks @​sixg0000d
• Fixed UDP DNS connection cause crash. Thanks @​nekohasekai

Chore

• Fixed two typo in comments. Thanks @​U-v-U

Security Advisory

• TLS connections with dangerous diagnose option allowInsecure turn on and without certificate pin with pinnedPeerCertificateChainSha256 will not be able protect your data at all from a attacker in privileged network path(for example ISP or any firewall or censorship infrastructure). This is especially dangerous when an unprotected protocol or option is used, such as any VLess configuration, VMess with none or zero security, and any trojan configuration, in which case your data is accessible to attacker in plain text and attacker can inject arbitrary data pretending to the the remote server. In the case of VLess and trojan, the proxy protocol access control credential is also exposed to the attacker, the attacker will be able to use your proxy. You are advised to use certificate pin (and/or other security features provided in a later version of V2Ray) whenever allowInsecure is turned on. Attempting to MITM your connection temporarily to identify TLS based proxy is a known threat.

Notices

• VMess: From Jan 1, 2022, compatibility for legacy VMess MD5 will be disabled by default. Visit here for more information.
• You are able to compile exactly the same binaries as the ones in Assets section below by simply following the compiling guide.

For downstream developers

The Go module name of v2ray-core has been changed to github.com/v2fly/v2ray-core/v4. Do NOT use v2ray.com/core anymore.

v4.38.1

Feature

• FakeDNS: Added fakedns+others sniffer , based on v2fly/v2ray-core#697 . Thanks @​yuhan6665 .
• TLS: A SECURITY improvement that allow the remote peer's TLS certificate to be pinned to a known value. Document for TLS is updated.
• Observatory: A component that measure the connectivity of selected outbounds. The document for Observatory is updated.
• Routing : leastPing balancing strategy is added. This strategy will select a outbound that is alive and completed HTTPS GET request in the least time. The document for Routing is updated.

Fixs

• Fixed crashing in fake dns. v2fly/v2ray-core#931 Thanks @​IceCodeNew
• Added IPv6 pool in fake dns by default. v2fly/v2ray-core#925 Thanks @​Loyalsoldier
• Return ErrEmptyResponse for fakedns. v2fly/v2ray-core#926 Thanks @​sixg0000d

Chore

• Fixed two typo in comments. Thanks @​U-v-U

Security Advisory

• TLS connections with dangerous diagnose option allowInsecure turn on and without certificate pin with pinnedPeerCertificateChainSha256 will not be able protect your data at all from a attacker in privileged network path(for example ISP or any firewall or censorship infrastructure). This is especially dangerous when an unprotected protocol or option is used, such as any VLess configuration, VMess with none or zero security, and any trojan configuration, in which case your data is accessible to attacker in plain text and attacker can inject arbitrary data pretending to the the remote server. In the case of VLess and trojan, the proxy protocol access control credential is also exposed to the attacker, the attacker will be able to use your proxy. You are advised to use certificate pin (and/or other security features provided in a later version of V2Ray) whenever allowInsecure is turned on. Attempting to MITM your connection temporarily to identify TLS based proxy is a known threat.

... (truncated)

• 86a3ee2 Update core.go
• 34a98e8 Create CODE_OF_CONDUCT.md (#941)
• dbfc213 fix: make sure the ctx is propagated to connections by detached connection fo...
• d48cf1a fix: make sure the ctx is propagated to connections by detached connection
• 2e26cf6 fix: make sure the ctx is propagated to connections
• 582e903 Update core.go
• a21e4a7 Fix: FakeDNS IPv6 & refine JSON unmarshal (#925)
• bad6cdf Fix: fakedns return ErrEmptyResponse without result (#926)
• 8ba4ac1 fixed a panic issue caused by not checking type of input address in fake dns
• 4737a1f Chore: update dependencies (#920)
• Additional commits viewable in compare view

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