The search phrase Player Health Indicator Mod 1.21.4 sits between user demand and official release status. The project’s latest published release is 1.1.1 for Minecraft 1.21, while public repository activity has included a 1.21.4 request and a pull request related to that version.
Development activity is useful context, not a final release
An issue or pull request can show that someone is investigating compatibility, but it does not automatically create an official supported build. A release should have a clear version label, packaged artifact, and project-level publication before you treat it as stable support.
Why a small point update can still matter
PlayerHealthIndicators modifies the player rendering path. Even small Minecraft updates can change method names, mappings, or signatures that client mods depend on. This is exactly the kind of integration where “close enough” version matching can fail at startup or silently stop rendering.
Build a reversible test if you experiment
Use a duplicated profile, preserve your known-good mods folder, and change one variable at a time. If you test community development code, keep it outside your main world until you can confirm startup, player rendering, and the health toggle behave normally.
Keep the official 1.21 release as the reference point
The latest confirmed published build remains 1.1.1 for Minecraft 1.21. Use that as the factual baseline and treat 1.21.4 as a separate compatibility target that needs explicit confirmation.
Next steps
Use the homepage for the complete feature, release, FAQ, and download overview. For a clean installation workflow, read the installation and troubleshooting guide.