Apply suggestions from code review

Author: rickeylev

.bazelci/presubmit.yml

@@ -54,7 +54,7 @@ buildifier:
   build_flags:
     - "--noenable_bzlmod"
     - "--enable_workspace"
-  bazel: 7.4.1
+  bazel: 7.x
 .common_bazelinbazel_config: &common_bazelinbazel_config
     build_flags:
       - "--build_tag_filters=integration-test"
@@ -205,6 +205,7 @@ tasks:
     name: "RBE: Ubuntu"
     platform: rbe_ubuntu2004
     # TODO @aignas 2024-12-11: get the RBE working in CI for bazel 8.0
+    # See https://github.com/bazelbuild/rules_python/issues/2499
     bazel: 7.x
     test_flags:
       - "--test_tag_filters=-integration-test,-acceptance-test"

.pre-commit-config.yaml

@@ -46,6 +46,8 @@ repos:
       - id: update-deleted-packages
         name: Update deleted packages
         language: system
+        # 7.x is necessary until https://github.com/bazel-contrib/rules_bazel_integration_test/pull/414
+        # is merged and released
         entry: env USE_BAZEL_VERSION=7.x bazel run @rules_bazel_integration_test//tools:update_deleted_packages
         files: ^((examples|tests)/.*/(MODULE.bazel|WORKSPACE|WORKSPACE.bzlmod|BUILD.bazel)|.bazelrc)$
         pass_filenames: false

CHANGELOG.md

@@ -52,9 +52,9 @@ Unreleased changes template.
 
 {#v0-0-0-changed}
 ### Changed
-* The earliest version that is tested in our CI for `WORKSPACE` support now
-  is `7.4.1`, which is in line with our bazel version support matrix - only the
-  two latest bazel versions are supported at a time.
+* Bazel 6 support is dropped and Bazel 7.4.1 is the minimum supported
+  version, per our Bazel support matrix. Earlier versions are not
+  tested by CI, so functionality cannot be guaranteed.
 
 {#v0-0-0-fixed}
 ### Fixed