Prometheus Exporter

1.4.0 for Minecraft 1.21.11 with Forge 61.0.0 (2026-02-23)

New features:

• Issue #44: Support Minecraft 1.21.11 with Forge.

• Added scrape stats in the new "mc_scrape_duration_seconds" metric.

1.3.0 for Minecraft 1.21.11 with Forge 61.0.0 (2025-09-13)

New features:

• Issue #38: The exporter can now be managed with the commands "/prometheus start", "/prometheus stop", and "/prometheus restart". The player requires op or level 4 permissions which can be configured by the "command.permission_level" setting.

• Issue #39/Issue #40: Added player stats in the new "mc_player_stat_total" metric. These can be disabled by setting the "collector.mc_player_stats" setting to false.

1.2.1 for Minecraft 1.21.11 with Forge 61.0.0 (Unreleased)

Bug fixes:

• Prevent possible crash on bad start-up.

1.2.0 for Minecraft 1.21.11 with Forge 61.0.0 (Unreleased)

New features:

• Added the "collector.mc_dimension_tick_errors" setting to control how to handle inconsistent dimension ticks from misbehaved mods. The new default behavior is to log a debug message rather than crash.

Bug fixes:

• Do not warn when the mod is not installed on the client.
• Support inconsistent dimension ticks from misbehaved mods.
• Support multithreaded dimension ticks.

Miscellaneous:

• Minor documentation.

1.1.0 for Minecraft 1.21.11 with Forge 61.0.0 (Unreleased)

New features:

• Add entity tracking with the "mc_entities_total" metric. This can be disabled by setting "collector.mc_entities" to "false" in the config.

Bug fixes:

• Client-side server and level ticks no longer crash Minecraft.

Miscellaneous:

• Added "HACKING.md".
• Added "dashboards.md".
• Added "metrics.md".