0.4.0

• Refactored code to use stack memory as much as possible, and avoid allocating/freeing memory. Even under intense load (200+ MBit/s), memory usage stays below 10MB.
• When possible, the code uses poll_fn to process multiple I/O operations in parallel - while still using a single-threaded version of Tokio.
• Improved bandwidth and throughput for the IKEv2 flow.
• Fixed an issue where sometimes shutdown never completed.
• Simplified the VPN client state machine.
• Bumped up dependency versions.
• Other small improvements.

0.3.0

• Added support for IKEv2 message fragmentation (RFC 7383)
• Improved debug logging for encrypted messages and ESP IP headers
• Added support and documentation for running locally in macOS
• Delete other sessions on INITIAL_CONTACT
• Use timeouts when deleting sessions instead of dropping them immediately
• Check that request matches the original request on retransmissions, follow the client IP/port on retransmissions
• Bumped up dependency versions, switched from ring to aws-lc-rs

Version 0.2.0

Implemented a new IKEv2 (L3) VPN mode.

Version 0.1.0

• Switched to rustls + ring for TLS connections, as this combination appears to be more actively maintained than native-tls and supports TLS 1.3.
• Detect loopback connections and drop them to prevent single-threaded Tokio from locking up.
• A few small code changes/refactorings.

Version 0.0.1

Initial release.