Main is always 0.5.* for some reason?

[talbertine]

I'm running into some strange behavior with the TrunkBased/preview1 preset config, and I'd appreciate if anyone can help me figure out what to do about it.

Before Experimenting

On main, I had an initial commit, 3 pairs of squash and merge commits with semver minors, and a pair of squash and merge commits with semver patch. Gitversion was telling me that the version was 0.5.1. Before I realized that the squashes and merges were associated with each other, I was expecting it to be 0.6.2, and after I realized and figured something in the config was , I expected 0.3.1.

When I created a branch, it initially had version 0.5.2-testBranch.0, which jumped to 0.3.2-testBranch1 once I made a commit on the branch.

I then tried doing a dummy branch and merge request back to main with a semver:minor and sure enough, it says it's version 0.5.0 again.

It seems like it's not calculating the version on main properly, but once I get into a branch it is. Does anyone know what I can try to fix this?

[HHobeck]

In the TrunkBased/preview1.yml template the increment on main branch is set to patch. This would explain why only the third number changes.

Cheers!

[talbertine]

But the commits in main have +semver:minor in the commit message. Shouldn't that increment the minor version?

And why minor version 5? If they are being counted, we should be on 3 or 4 depending on whether we're before or after my dummy commits. If they're not being counted, we should still be on 0.

Once it gets off main, it starts counting the way I would expect, producing minor version 3 or 4, which would seem to imply that either it was counting wrong on main, or it's counting wrong off main.

I can include the whole git log if that makes it more clear. It's only the 10 commits.

gitlog.txt

[talbertine]

Here's the git log from the test branch for comparison.

gitlog_0.4.1-testbranch.1.txt

[HHobeck]

$ mkdir A-TrunkBased-Repo
$ cd A-TrunkBased-Repo/
$ git init .
$ echo workflow: TrunkBased/preview1 > GitVersion.yml
$ git add *
$ git commit -m "init"
$ git switch -c unkown-branch
$ git commit --allow-empty -m "A"
$ git switch main
$ git merge unkown-branch --no-ff (+semver:minor added in vim)

$ git log

commit 88dc03c26440cfc15d1866627df0d2c638995de9 (HEAD -> main)
Merge: 5430682 571e6d4
Author: HHobeck <HHobeck@gmail.com>
Date:   Tue Mar 3 14:30:44 2026 +0100

    Merge branch 'unkown-branch' +semver:minor

commit 54306820cc88912a282c538fbf28c4d84e8b24b0
Author: HHobeck <HHobeck@gmail.com>
Date:   Tue Mar 3 14:30:24 2026 +0100

    init

commit 571e6d48277d57b4a71f10cef85333313023252d (unkown-branch)
Author: HHobeck <HHobeck@gmail.com>
Date:   Tue Mar 3 14:30:24 2026 +0100

    A

$ gitversion.exe -nocache

{
  "AssemblySemFileVer": "0.1.0.0",
  "AssemblySemVer": "0.1.0.0",
  "BranchName": "main",
  "BuildMetaData": null,
  "CommitDate": "2026-03-03",
  "CommitsSinceVersionSource": 3,
  "EscapedBranchName": "main",
  "FullBuildMetaData": "Branch.main.Sha.88dc03c26440cfc15d1866627df0d2c638995de9",
  "FullSemVer": "0.1.0-3",
  "InformationalVersion": "0.1.0-3+Branch.main.Sha.88dc03c26440cfc15d1866627df0d2c638995de9",
  "Major": 0,
  "MajorMinorPatch": "0.1.0",
  "Minor": 1,
  "Patch": 0,
  "PreReleaseLabel": "",
  "PreReleaseLabelWithDash": "",
  "PreReleaseNumber": 3,
  "PreReleaseTag": "3",
  "PreReleaseTagWithDash": "-3",
  "SemVer": "0.1.0-3",
  "Sha": "88dc03c26440cfc15d1866627df0d2c638995de9",
  "ShortSha": "88dc03c",
  "UncommittedChanges": 0,
  "VersionSourceDistance": 3,
  "VersionSourceIncrement": "None",
  "VersionSourceSemVer": "0.0.0",
  "VersionSourceSha": "",
  "WeightedPreReleaseNumber": 55003
}

Works like expected.