chore: version bump 15.0.0

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Change Log
 
+## [15.0.0] - 2025-08-13
+
+## Added
+
+- Process kinds in parallel with a pool of processes (#738)
+- use `uv` to check python version, when available(#733)
+
+## Changed
+
+- BREAKING CHANGE: Use `primary-dependency-label` attribute to find primary dependency of tasks (#736)
+
+## Fixed
+
+- Fallback to guessing repo root in config.py (#742)
+
 ## [14.6.1] - 2025-08-11
 
 ### Fixed

docs/reference/migrations.rst

@@ -3,6 +3,15 @@ Migration Guide
 
 This page can help when migrating Taskgraph across major versions.
 
+14.x -> 15.x
+------------
+
+* `get_primary_dependency` now requires a `primary-dependency-label` to be set
+  on the task it is passed instead of `primary-kind-dependency`. Update any tasks
+  you were calling this for to set this attribute. (If your only usage of this
+  is indirectly through `from_deps`, no change is needed: `from-deps` generated
+  tasks will set this for you.)
+
 13.x -> 14.x
 ------------
 

pyproject.toml

@@ -1,7 +1,7 @@
 ### Project
 [project]
 name = "taskcluster-taskgraph"
-version = "14.6.1"
+version = "15.0.0"
 description = "Build taskcluster taskgraphs"
 readme = "README.rst"
 authors = [