microsoft/lightgbm
Pull Request Overview
- Opened on September 29, 2026
- Status Merged
- Commit count 2 with first commit September 29, 2026
Total Delta
Open Days
Test Delta
How long has this pull request spent in each phase of its lifecycle?
| Fraction of total time | Business days | Phase |
|---|---|---|
|
|
0.0 days | Authoring 2 commits before pull request opened for review |
|
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0.1 days | Awaiting first review |
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0.2 days | Revising work with 0 commits in response to 1 review that left 0 comments |
| Set up deploy tracking to begin tracking full PR start-to-deploy times | ||
Total time for pull request
0.3 business days
from first commit authored to merge
Deploy tracking has not been set up
[ci] switch from macos-14 to macos-15 runners
CI is currently blocked because of some brew install failures like this:
==> make install MANDIR=/opt/homebrew/Cellar/openssl@3/3.6.4_1/share/man MANSUFF
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /opt/homebrew
Could not symlink bin/openssl
Target /opt/homebrew/bin/openssl
is a symlink belonging to [email protected]. You can unlink it:
brew unlink [email protected]
To force the link and overwrite all conflicting files:
brew link --overwrite openssl@3
To list all files that would be deleted:
brew link --overwrite openssl@3 --dry-run
Possible conflicting files are:
/opt/homebrew/bin/openssl -> /opt/homebrew/opt/[email protected]/bin/openssl
Things like this are going to be more frequently now that macOS 14 (Sonoma) is considered a "Tier 3" platform for Homebrew:
This proposes just updating all uses of macos-14 runners to macos-15.
Notes for Reviewers
We'll be forced to do this soon anyway
GitHub considers the macos-14 runners deprecated and plans to fully shut them down on November 2nd, 2026: https://github.com/actions/runner-images/issues/13518
We can still target older macOS APIs
For now, let's try to continue supporting a wide range of macOS versions:
Until XCode stops supporting the oldest versions in this range or there is some other specific reason to move that floor.
PR was closed without comments.