tailscale/tailscale v0.98 on GitHub

Tailscale now prefers IPv6 over IPv4 when sending encrypted packets between nodes. Note: this does not yet make IPv6 available inside the Tailscale network (8b3f6be)
Improved graceful reaction to network changes like switching from wifi to cellular data, or moving a laptop between different networks while asleep
MTU has been adjusted to avoid packet loss on Google Cloud and for DSL users (#246)
DERP fallback connectivity is now available even in networks that completely block outbound UDP (6284454)
We've added a DERP relay in Sydney. This significantly improves the latency of the TCP fallback path in Australia and New Zealand (4e0ee14)

Linux, FreeBSD and OpenBSD now has a tailscale status to inspect the local state of the network engine. Add --json for a machine-parseable JSON form (the format may change in future)

Windows no longer resets active connections when new nodes are added to the network (dc9b39e)

The iOS app now uses iOS AuthenticationServices for login. This makes Tailscale usable with Google accounts enrolled in the Advanced Protection Program
The iOS app consumes less memory and CPU, which should make it more stable during prolonged use.

A complete list of changes can be found here: dd14b65...0a50ecb