v1.2.18

What's Changed

• feat: Handler.Singleflight call de-dup, Client.IsClient/IsServer, Server race fix by @lesismal in #75
• ci: switch build workflows to Go module mode (fix GO111MODULE=off failure) by @lesismal in #76
• ci: use latest stable Go on macOS (fix missing LC_UUID abort) by @lesismal in #77
• perf: decode singleflight response once and share it with followers by @lesismal in #78
• fix: atomic async singleflight fan-out + AsyncExecute delivery (+ README docs) by @lesismal in #79
• perf: pool singleflightCall and skip unused done channel for async by @lesismal in #80
• fix: prevent recvLoop resurrection and double close on Restart by @lesismal in #81
• feat: add Handler.HandleReconnect callback for client reconnect attempts by @lesismal in #83

Full Changelog: v1.2.17...v1.2.18