lostluck commented on PR #26787:
URL: https://github.com/apache/beam/pull/26787#issuecomment-1554814051

   @jamesfricker As I said last time for your other PR, this doesn't do what 
you think it does. 
https://github.com/apache/beam/pull/26368#issuecomment-1518110203
   
   
   The `go` directive in a go.mod specifies the minimum version of Go with 
which the code in the module can be built with. So it says that The Go beam SDK 
doesn't rely on language features or features of the standard library that were 
added after 1.19.
   
   So unless there's a paired change to make use of features introduced in the 
1.20 release, there's no real value in changing this.
   
   It also doesn't prevent users from using newer versions of Go (including the 
patched security releases).
   
   Further, the `go` directive only indicates Major.Minor and doesn't specify 
Patch. To-wit: As specified, this cases a build failure, caught by our build 
system (and would have been caught if it had been built locally too)
   
   ```
   go: errors parsing go.mod:
   /home/runner/work/beam/beam/sdks/go.mod:23: invalid go version '1.20.3': 
must match format 1.23
   Error: Process completed with exit code 1.
   ```
   
   The Go Module reference is quite readable, and explains the `go` directive 
in detail here: 
   https://go.dev/ref/mod#go-mod-file-go
   
   ----
   
   That said, to update the Beam's Infra to use the latest patch, that kind of 
PR looks like this https://github.com/apache/beam/pull/26054 though for a patch 
update, only the BeamModulePlugin.groovy and sdks/go/run_with_go_version.sh 
files would need changes to ensure the latest patch is used. This only affects 
releases, when they build the boot loader scripts.


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