Merge pull request cli#12864 from cli/kw/update-build-from-source-to-go-1.26

Update Go version requirement to 1.26+

Author: BagToad

.github/CONTRIBUTING.md

@@ -24,7 +24,7 @@ We accept pull requests for issues labelled `help wanted`. We encourage issues a
 ## Building the project
 
 Prerequisites:
-- Go 1.25+
+- Go 1.26+
 
 Build with:
 * Unix-like systems: `make`

.github/workflows/lint.yml

@@ -77,7 +77,7 @@ jobs:
       # `govulncheck` exits unsuccessfully if vulnerabilities are found, providing results in stdout.
       # See https://pkg.go.dev/golang.org/x/vuln/cmd/govulncheck#hdr-Exit_codes for more information on exit codes.
       #
-      # On go1.25, To make `-mode binary` work we need to make sure the binary is built with `go build -buildvcs=false`
+      # On go1.25+, To make `-mode binary` work we need to make sure the binary is built with `go build -buildvcs=false`
       # Since our builds do not use `-buildvcs=false`, we run in source mode here instead.
       - name: Check Go vulnerabilities
         run: |

docs/install_source.md

@@ -1,6 +1,6 @@
 # Installation from source
 
-1. Verify that you have Go 1.25+ installed
+1. Verify that you have Go 1.26+ installed
 
    ```sh
    $ go version

docs/source.md

@@ -1,6 +1,6 @@
 # Installation from source
 
-1. Verify that you have Go 1.25+ installed
+1. Verify that you have Go 1.26+ installed
 
    ```sh
    $ go version