Ignore Scala 3.4.0 until it's announced

[rtyley]

We're already seeing Scala Steward raise PRs for Scala 3.4.0, this might be unintentional, as there are no GitHub release notes for 3.4.0?

See also #2337 & #1104.

cc @Kordyjan

[rtyley]

I'm not sure if there's a more concise way to express these lines? eg

Suggested change

	{ groupId = "org.scala-lang", artifactId = "scala3-compiler", version = { exact = "3.4.0" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-library", version = { exact = "3.4.0" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-library_sjs1", version = { exact = "3.4.0" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-compiler", version = { exact = "3.3.2" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-library", version = { exact = "3.3.2" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-library_sjs1", version = { exact = "3.3.2" } },
	{ groupId = "org.scala-lang", artifactId = "scala3-compiler", version = [ { exact = "3.4.0" }, { exact = "3.3.2" } ]},
	{ groupId = "org.scala-lang", artifactId = "scala3-library", version = [ { exact = "3.4.0" }, { exact = "3.3.2" } ]},
	{ groupId = "org.scala-lang", artifactId = "scala3-library_sjs1", version = [ { exact = "3.4.0" }, { exact = "3.3.2" } ]},

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1f8ea30) 91.19% compared to head (9b0aaad) 91.19%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3285   +/-   ##
=======================================
  Coverage   91.19%   91.19%           
=======================================
  Files         167      167           
  Lines        3408     3408           
  Branches      304      304           
=======================================
  Hits         3108     3108           
  Misses        300      300           

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[Kordyjan]

Thank you for spotting that!

Scala Steward should never update from LTS to not-LTS. I thought this would become a problem only with 3.4.1 as there will be two paths for upgrading (3.4.0 -> 3.4.1 and 3.3.2 -> 3.3.3). I completely missed that it will start with 3.4.0. I think the solution is elegant.

[rtyley]

Scala Steward should never update from LTS to not-LTS

I think that's a good rule, but I'm not sure if it will be respected by Scala Steward at the moment - I don't think Scala Steward currently has any conception of Scala LTS releases...

I wonder: what is the correct configuration here when 3.4.0 is released? We might want to update this configuration to ignore both 3.4.0 & 3.4.1... but then when 3.4.1 is released, you can't configure 3.4.1 to be ignored any longer (users of 3.4.0 should upgrade) - and at that point, I'm uncertain if Scala Steward would hold back on recommending an update from Scala 3.3 to 3.4.1.

Another relevant issue is #3153, with commentary from @mzuehlke.

[mzuehlke]

I wonder: what is the correct configuration here when 3.4.0 is released? We might want to update this configuration to ignore both 3.4.0 & 3.4.1... but then when 3.4.1 is released, you can't configure 3.4.1 to be ignored any longer (users of 3.4.0 should upgrade) - and at that point, I'm uncertain if Scala Steward would hold back on recommending an update from Scala 3.3 to 3.4.1.

I guess without additional logic Scala Steward doesn't know about the concept of an LTS. maybe @fthomas has a good ies