chore: bump OT Fabric libraries and align the Go floor

.github/workflows/release.yml

@@ -21,7 +21,7 @@ permissions:
 
 jobs:
   release-sunspecctl-binary:
-    uses: otfabric/.github/.github/workflows/go-binary-release.yml@v3.3.0
+    uses: otfabric/.github/.github/workflows/go-binary-release.yml@v3.6.0
     with:
       bump: ${{ inputs.bump }}
       binary-name: sunspecctl

README.md

@@ -382,7 +382,7 @@ Tests need no hardware: they run against the SunSpec fixture server of go-sunspe
 ## Requirements
 
 - Go 1.26+ to build from source (not needed with the installer)
-- [otfabric/go-sunspec](https://github.com/otfabric/go-sunspec) v0.10.0+ and [otfabric/go-modbus](https://github.com/otfabric/go-modbus) v1.11.1+
+- [otfabric/go-sunspec](https://github.com/otfabric/go-sunspec) v0.10.0+ and [otfabric/go-modbus](https://github.com/otfabric/go-modbus) v1.13.1+
 
 ## Contributing
 

RELEASE.md

@@ -1,5 +1,17 @@
 # sunspecctl Releases
 
+## v0.6.1
+
+**Date:** 2026-11-08
+**Previous release:** v0.6.0
+
+### Changed
+
+- Built on go-modbus v1.13.1 (was v1.11.1). v1.12.0 to v1.13.1 change only go-modbus's bundled `modbus-cli` (organisation exit codes, the one-line `version` and `version --json`, shell completion); the library code sunspecctl uses is the same, so sunspecctl behaves as before. `version` lists `go-modbus 1.13.1`.
+- Release binaries are built with the latest Go 1.26 patch release (otfabric/.github release workflow v3.6.0); they were built with the exact Go version in `go.mod` (1.26.0).
+
+---
+
 ## v0.6.0
 
 **Date:** 2026-11-07

go.mod

@@ -3,7 +3,7 @@ module github.com/otfabric/sunspecctl
 go 1.26.0
 
 require (
-	github.com/otfabric/go-modbus v1.11.1
+	github.com/otfabric/go-modbus v1.13.1
 	github.com/otfabric/go-sunspec v0.10.0
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10

go.sum

@@ -1,8 +1,8 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/otfabric/go-modbus v1.11.1 h1:9a5sMUwcpN49VVfCJRSgW72QggcfF7KnqiWNcbmnzSk=
-github.com/otfabric/go-modbus v1.11.1/go.mod h1:FcVASTIAl1MNwPVW8nCMMubztiMueKHIFeVyHm0BDeY=
+github.com/otfabric/go-modbus v1.13.1 h1:tdIsrO/p8b79ZfgejZJu4l30RKH0E9j30CnzR9ueCDs=
+github.com/otfabric/go-modbus v1.13.1/go.mod h1:FcVASTIAl1MNwPVW8nCMMubztiMueKHIFeVyHm0BDeY=
 github.com/otfabric/go-serial v0.2.1 h1:PCOdnCDAHIHFaxTBNmisC/4SlD+NVd74d+EJPnXrCOw=
 github.com/otfabric/go-serial v0.2.1/go.mod h1:TqbYpWWg6W+IuCLs8YM2cndlMAEaTyaKyUX6Z08gtq8=
 github.com/otfabric/go-sunspec v0.10.0 h1:4vHV94iaj4ukUbSiEKf/aDUvVYmY9MTb5+dos4UdtkQ=